VIENNA, Austria – April 09, 2025 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today released version 8.4 of its server virtualization management platform, Proxmox Virtual Environment. This version comes with a range of improvements and new features.

Highlights in Proxmox VE 8.4

• Live migration with mediated devices: Mediated devices allow physical hardware resources to be partitioned into multiple virtual devices. It is now possible to migrate running virtual machines (VMs) which have mediated devices such as NVIDIA vGPU in use. Within a cluster, live migration to another node is possible if hardware and driver support for live migration is equally available on the target node. An available platform with support for live migration is NVIDIA vGPU. Additionally, the new ‘pve-nvidia-vgpu-helper’ tool simplifies the setup of NVIDIA vGPU drivers.
• API for third-party backup solutions: Proxmox VE now provides an API simplifying the development of plugins by external backup solution providers. Third party backup solutions can now directly implement backup and restore functionalities in Proxmox VE, and make use of advanced features. Third-party backup providers can implement a plugin that is fully integrated in the backup stack and in the web interface of Proxmox VE. This gives third-party backup solutions the opportunity to enhance the efficiency, reliability, and manageability of their backup and restore features in Proxmox VE.
• Virtiofs directory passthrough: Version 8.4 offers the functionality to share files and directories directly between a host and the VMs running on that host. This is achieved through the use of virtiofs, which allows VM guests to access host files and directories without the overhead of a network file system. Modern Linux guests support virtiofs out of the box while Windows guests need additional software to use this feature.
• Latest versions of open-source technologies: Proxmox VE 8.4 is based on Debian 12.10 (“Bookworm”), but uses the Linux kernel 6.8.12 as stable default and the newer kernel 6.14 as opt-in. This version of Proxmox VE includes updates to the latest versions of leading open-source technologies for virtual environments like QEMU 9.2.0, LXC 6.0.0, ZFS 2.2.7 with compatibility patches for kernel 6.14, and Ceph Squid 19.2.1 as stable option.

Further enhancements include more robust backup fleecing, improvements in the software-defined networking (SDN) stack, and additional options in the ISO installer. 

Availability

Proxmox VE 8.4 is now available for download. The ISO image contains the complete feature-set and can be installed on bare-metal. Distribution upgrades from older versions of Proxmox VE are possible with apt. It’s also possible to install Proxmox VE 8.4 on top of Debian. Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3.

Support Subscriptions: For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 115 per year and CPU.

Resources

• ISO Image Download: https://www.proxmox.com/en/downloads
• Forum Announcement: https://forum.proxmox.com/threads/proxmox-ve-8-4-released.164821/
• Roadmap: For published and upcoming features, see the Release Notes & Roadmap

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Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 1.5 million hosts. The virtualization platform has been translated into over 30 languages. More than 200,000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on enterprise support subscriptions from Proxmox Server Solutions GmbH.

About Proxmox VE
Proxmox Virtual Environment (Proxmox VE) is the leading open-source platform for all-inclusive enterprise virtualization. With the central web interface, you can easily run VMs and containers, manage software-defined storage and networking functionality, high-availability clustering, and multiple integrated out-of-the-box tools like backup/restore, live migration, replication, and the firewall. Enterprises use the powerful yet easy-to-manage, all-in-one solution to meet the core requirements of today’s modern data centers. Proxmox VE allows them to remain adaptable for future growth, thanks to its flexible, modular and open architecture.

About Proxmox Server Solutions
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria. To learn more visit https://www.proxmox.com or follow us on LinkedIn or on YouTube.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH, marketing@proxmox.com

VIENNA, Austria – March 19, 2025 – Enterprise software developer Proxmox Server Solutions announced today that its open-source virtualization management platform, Proxmox Virtual Environment (Proxmox VE), is the newest addition to the NVIDIA vGPU supported hypervisors. Starting with NVIDIA vGPU 18, this enables GPU virtualization across the Proxmox hypervisor, enhancing compatibility and performance for users operating in this environment. Enterprises using Proxmox VE can now take advantage of NVIDIA vGPU to run graphics-intensive and AI development workloads in virtualized environments. This partnership marks another step in a series of recent efforts to empower enterprise customers with enhanced features, official support, and continued open access.

Sharing a GPU across virtual machines (VMs) on virtualization platforms like Proxmox VE offers enterprises significant cost and efficiency benefits, reducing idle time through resource sharing, and improves scalability, allowing multiple GPU-accelerated tasks to run on the same hardware. Proxmox and NVIDIA work together to enable seamless integration and support between their solutions.

"Deploying NVIDIA vGPU software on Proxmox VE is seamless. The integration makes it easy to verify the performance needed to support various compute-intensive workloads and manage GPU utilization efficiently. Now we can quickly adjust resources to ensure an optimal user experience.” says Daire Byrne, Global Head of Systems at DNEG, an award-winning creative studio.

Availability

Technical enterprise support for NVIDIA vGPU software on Proxmox VE is available requiring a Proxmox subscription level of Basic, Standard, or Premium as well as an NVIDIA vGPU entitlement.

For optimal performance in production workloads, enterprise-grade hardware is recommended. To verify hardware compatibility, consult the NVIDIA Qualified System Catalog for detailed information. A comprehensive guide on configuring NVIDIA's Virtual GPU (vGPU) technology within the Proxmox Virtual Environment hypervisor is available from Proxmox at: NVIDIA vGPU on Proxmox VE

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About Proxmox Virtual Environment
Proxmox Virtual Environment (Proxmox VE) is the leading open-source platform for all-inclusive enterprise virtualization. With the central web interface, you can easily run VMs and containers, manage software-defined storage and networking functionality, high-availability clustering, and multiple integrated out-of-the-box tools like backup/restore, live migration, replication, and the firewall. Enterprises use the powerful yet easy-to-manage, all-in-one solution to meet the core requirements of today’s modern data centers. Proxmox VE allows them to remain adaptable for future growth, thanks to its flexible, modular and open architecture.

About Proxmox Server Solutions
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler / Dominik Bohn, Proxmox Server Solutions GmbH

VIENNA, Austria – February 27, 2025 – Enterprise software developer Proxmox Server Solutions GmbH ("Proxmox" or the "Company") today released Proxmox Mail Gateway 8.2, the latest version of its open-source email security solution. The Mail Gateway platform is a complete operating system based on Debian 12.9 “Bookworm”, but defaulting to the newer Linux kernel 6.8 and allowing for opt-in use of kernel 6.11. It includes ZFS 2.2.7 and SpamAssasin 4.0.1 with updated rulesets.

The anti-spam and antivirus filtering solution functions as a full-featured mail proxy, that is deployed between the firewall and the internal mail server. It protects organizations against threats, such as spam, viruses, Trojans, and phishing emails.

What’s new in Proxmox Mail Gateway 8.2

• Single sign-on: This version simplifies access management by integrating support for multiple authentication realms in the backend login. This eliminates the need to manage specific authentication details, enabling administrators to log into Proxmox Mail Gateway using single sign-on (SSO) authentication schemes with the new OpenID Connect as the first supported authentication protocol. This enables logging in through public as well as self-hosted services like Keycloak, Zitadel or LemonLDAP::NG.
• Enhanced rule system: The Proxmox development team adds further improvements to the configuration options of the comprehensive object-oriented rule system, by which the mail flow can be controlled and filtered. The filtering of the mail's content by Content-Type can now be configured to ignore information from the filename and the Content-Type header field, and to rely solely on file signature based detection, allowing for accurate filtering of attachments. Furthermore, the filtering of mail header fields can now be restricted to the top header section, thereby providing the option to exclude headers in attached emails from the filter.
• DKIM signature for emails generated by Proxmox Mail Gateway: Users can now set the From-header for emails generated by Proxmox Mail Gateway, like for example for notifications from the rule system, admin reports, or backup notifications. These emails are signed with DKIM if the installation uses the header information to obtain the domain for signing.
• Automated and unattended installation: Proxmox Mail Gateway now supports automated and unattended installation making large deployments significantly easier. Proxmox offers a ‘proxmox-auto-install-assistant’ tool that fully automates the setup process on bare-metal. Automated installation allows for the rapid deployment of Proxmox Mail Gateway hosts without the need for manual access to the systems, saving time and reducing the risk of errors. To use this method, an answer file must be prepared with the necessary configuration settings for the installation process. This file can be provided directly in the ISO, on an additional disk such as a USB flash drive, or over the network. Tailor-made configurations for customized deployments can be achieved by running a custom script on first boot after an automated installation.

Availability

Proxmox Mail Gateway is released under the GNU Affero GPL, v3 and is available as an ISO download, which can be installed on bare metal or on a virtual machine. The ISO contains an installation wizard that automatically installs and configures all the necessary components on the host. This eliminates the need for manual configuration later. The ISO contains the complete feature-set and is available for download.

Additionally, you can install Proxmox Mail Gateway as a container appliance inside Proxmox VE.

For enterprise use, Proxmox Server Solutions GmbH offers a subscription service that provides, at all levels, access to the extensively tested Enterprise Repository. This repository provides regular updates via the web interface and is recommended for production use. At the Basic and higher subscription levels, technical support from the Proxmox team is also available. Subscription prices start at EUR 180 per host per year for unlimited users and domains.

Further information:

Release Notes - https://pmg.proxmox.com/wiki/index.php/Roadmap
Forum Announcement: https://forum.proxmox.com

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About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution, protecting your mail server against all email threats from the moment they emerge. Organizations of any size can easily deploy and implement the comprehensive anti-spam and antivirus platform in just a few minutes. Deploying the full featured mail proxy between the firewall and an internal mail server allows you to control all incoming and outgoing email traffic from the central, web-based interface. Proxmox filters all email traffic at the gateway before it reaches the mail server, protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the GNU AGPLv3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria. To learn more visit https://www.proxmox.com or follow us on LinkedIn or on YouTube.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – December 19, 2024 – Enterprise software developer Proxmox Server Solutions  (henceforth "Proxmox"), today announced a first preview of its new open-source project Proxmox Datacenter Manager. This early-stage Alpha version of the software is intended to give a first impression and is now published to invite the Proxmox community to collaborate.

What is Proxmox Datacenter Manager?

Proxmox Datacenter Manager is an open-source server management software and designed to provide a unified overview of all nodes and clusters that Proxmox VE users have in their virtualized environments. By providing a modern user interface, the first Alpha version enables users to connect to the relevant nodes and/or clusters from a single location, thereby facilitating the management of servers and streamlining administrative tasks.

Proxmox Datacenter Manager Alpha enables to view the basic resource usage of all nodes and their guests. Further, it allows for basic management of resources, including shutdown, reboot, start, etc., and facilitates remote migration of virtual guests between different Datacenters. To do more complex management, the tool directly links to the desired node and/or cluster in the full web interface of Proxmox VE.

This newest open-source project from Proxmox is fully developed in the Rust programming language and comes with a completely redesigned front end, offering a modern web user interface experience. The new design is not only visually appealing and functional, but also optimised for accessibility, speed, and compatibility.

Roadmap and Download

A first Alpha release is available for the community for testing and collaborating. A roadmap as well as download and installation instructions are available in the official forum announcement.

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About Proxmox Server Solutions
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 28, 2024 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today announced version 3.3 of its open-source server backup solution. The enterprise solution for backing up and restoring VMs, containers, and physical hosts supports incremental backups, deduplication, Zstandard compression, and authenticated encryption.

Enhancements in Proxmox Backup Server 3.3

• New "push" direction for sync jobs: Sync jobs let users create offsite backups by syncing datastore contents between onsite and offsite Proxmox Backup Servers. Previously, the offsite server had to "pull" backup snapshots from the onsite server. Now, with the new "push" option, the onsite server can send backups to the offsite server, even if the offsite server can't initiate the network connection.
• Support for removable datastores: Proxmox Backup Server stores backup snapshots in so-called datastores, and multiple datastores can be configured as needed. With this version, it is now possible to create datastores on removable storage media. Such a "removable datastore" can be used across multiple servers. Using the web interface or the command line, the storage medium can be removed by unmounting the "removable datastore." The datastore can then be re-added by remounting it—either on the same Proxmox Backup Server instance or a different one.
• Webhook target for the notification system: The flexible notification system in Proxmox solutions uses a matcher-based approach to route notifications to various target types, allowing for granular control over when, where, and how notifications are sent. The new webhook notification target enables users to trigger HTTP requests for events like sync jobs, backup verification, or garbage collection. It supports customizable request headers and body content, allowing for seamless integration with any webhook-compatible service.
• Faster host and container backups: When backing up host filesystems or containers from Proxmox VE to Proxmox Backup Server, it is now possible to efficiently detect files that have not changed since the last backup snapshot. When possible, unchanged files are not processed, which can make file-based backups complete faster.
• This version is based on Debian 12.8 (“Bookworm”), but uses the newer Linux kernel 6.8.12-4 as stable default and kernel 6.11 as opt-in. The backup platform comes with ZFS 2.2.6 (with compatibility patches for Kernel 6.11).

Proxmox Backup Server seamlessly integrates into Proxmox Virtual Environment – users just need to add a datastore of the Proxmox Backup Server as a new storage backup target to Proxmox VE.

Availability

The centrally managed software stack Proxmox Backup Server 3.3 is now available for download.

The downloadable ISO image can be quickly installed on bare-metal using the installation wizard. Distribution upgrades from older versions of Proxmox Backup Server are possible via APT. It is also possible to install Proxmox Backup Server on top of Debian.

License: Proxmox Backup Server is free and open-source software, published under the GNU AGPLv3.

Support Subscriptions: For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 520 per server, including unlimited backup storage and unlimited backup-clients.

Further information:

• Release Notes - https://pbs.proxmox.com/wiki/index.php/Roadmap
• Forum Announcement: https://forum.proxmox.com/threads/proxmox-backup-server-3-3-released.158192/

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About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPLv3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 21, 2024 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has today released version 8.3 of its virtualization platform, Proxmox Virtual Environment. The enterprise virtualization solution features essential management tools and a user-friendly web interface, allowing organizations of all sizes, sectors and industries, to deploy open-source solutions in clustered, highly available setups. The world-wide customer base uses it to deploy extensive infrastructures across vast geographical locations, and integrate multiple applications seamlessly.

This version is based on Debian 12.8 (Bookworm), but uses the Linux kernel 6.8.12-4 as stable default, and allows for opt-in use of kernel 6.11.  The software includes updates to the latest versions of leading open-source technologies for virtual environments like QEMU 9.0.2, LXC 6.0.0 , and ZFS 2.2.6 (with compatibility patches for Kernel 6.11).

Enhancements in Proxmox Virtual Environment 8.3

• Alignment of the Software-Defined Networking (SDN) stack with the firewall: The SDN technology allows users to create virtual zones and networks (VNets), enabling them to effectively manage and control complex networking configurations and multitenancy setups via the web interface of Proxmox VE. The SDN stack is now more closely integrated with the firewall, with the ability to automatically generate IP sets for VNets and virtual guests managed by the IP address management plugin. Referencing IP sets in the firewall rules simplifies their creation and maintenance. In addition, the opt-in firewall based on nftables now has the capability to filter forwarded network traffic at the host and at the virtual network (VNet) level. For example, this can be used to restrict SNAT traffic or traffic flowing from one Simple Zone to another.
• Webhook target for the notification system: The flexible notification system in Proxmox solutions uses a matcher-based approach to route notifications to various target types, allowing for granular control over when, where, and how notifications are sent. The new webhook notification target enables users to trigger HTTP requests for events like system updates, cluster node issues, or backup job. It supports customizable request headers and body content, allowing for seamless integration with any webhook-compatible service.
• A new ‘Tag View’ functionality for the resource tree offers users a rapid and customizable overview of the virtual guests: The new ‘Tag View’ allows users to view their virtual guests grouped according to the assigned tags.
• Support for Ceph Squid (technology preview): Proxmox Virtual Environment 8.3 adds support for Ceph Squid 19.2.0 and continues to support Ceph Reef 18.2.4 and Ceph Quincy 17.2.7. The preferred Ceph version can be selected during the installation process.
• Faster container backups: When backing up containers to Proxmox Backup Server, it is now possible to efficiently detect files that have not changed since the last backup snapshot. When possible, unchanged files are not processed, which can make container backups complete faster.
• Migration from other hypervisors: The Proxmox developers have streamlined the guest import from files in Open Virtualization Format (OVF) and Open Virtualization Appliances (OVA). Proxmox VE now allows users to import OVF and OVA files directly from file-based storage via the web interface. This simplifies the guest import process and allows users to either upload OVA files from a local machine or download them from a URL. Additionally, Proxmox VE also offers an import wizard facilitating the migration of VMs from other hypervisors, such as VMware guests.

Citation CTO Thomas Lamprecht:

"Our virtualization platform is designed to empower enterprises with unparalleled efficiency and control," said Thomas Lamprecht, CTO of Proxmox. "By integrating advanced Software-Defined Networking capabilities, we’re enabling businesses to simplify their IT infrastructure, improve agility, and drive scalable growth. We are currently developing the inaugural version of the Proxmox Datacenter Manager, which will provide a unified management interface for multi-datacenter operations and facilitate the effective management of multiple clusters across diverse data centers.”

Citation COO Tim Marx:

"The open-source project Proxmox VE has experienced significant growth over the past few months, adding 300,000 active hosts, bringing the total to around 1.3 million. In the current dynamic business environment, we are well-positioned for growth, particularly as recent pricing shifts in the market create new opportunities for us to serve our customers more effectively," said Tim Marx, COO of Proxmox. "Our commitment to quality and value has resonated strongly, and we’re excited to continue building on this momentum."

Availability

Proxmox Virtual Environment 8.3 is available for download at https://www.proxmox.com/downloads. The ISO contains the complete feature-set and can be installed on bare-metal. Distribution upgrades from older versions of Proxmox VE are possible with apt. It is also possible to install Proxmox VE 8.3 on top of Debian.

License: Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3.

Support Subscriptions: For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 110 per year and CPU socket. 

Further information:

Release Notes - https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_8.3
Video: What's new in Proxmox VE 8.3
Forum Announcement: https://forum.proxmox.com

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Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 1.3 million installed hosts. The virtualization platform is available in 30 languages. More than 190.000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on a enterprise support subscription from Proxmox Server Solutions GmbH.

About Proxmox Server Solutions
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – April 25, 2024 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today announced version 3.2 of its open-source server backup solution. The enterprise solution for backing up and restoring VMs, containers, and physical hosts supports incremental backups, deduplication, Zstandard compression, and authenticated encryption.

Enhancements in Proxmox Backup Server 3.2

• Notification system: This release introduces a new framework that uses a matcher-based approach to route notifications. It allows users define specific target types as recipients of notifications. Alongside the current local Postfix MTA, supported targets include Gotify servers or remote SMTP servers optionally with SMTP authentication. Notification matchers determine which targets will get notifications for particular events based on predetermined rules. The notification system offers greater flexibility, and precision for defining when, where, and how notifications are sent.
• Automated and unattended installation: Proxmox offers a new ‘proxmox-auto-install-assistant’ tool that fully automates the setup process on bare-metal. Automated installation allows for the rapid deployment of Proxmox Backup hosts without the need for manual access to the systems, saving time and reducing the risk of errors. To use this method, an answer file must be prepared with the necessary configuration settings for the installation process. This file can be provided directly in the ISO, on an additional disk such as a USB flash drive, or over the network. Automated installation is useful in various scenarios, such as deploying large-scale infrastructure, automating the setup process, and ensuring consistent configurations across multiple systems.
• Exclude backup groups from jobs: Group filters for sync jobs and for tape backup jobs can now exclude particular backup groups. In order to decide whether a job should process a particular backup group, „include“ filters are processed before the „exclude“ filters.
• Overview of prune and garbage collection jobs: A new tab in the “Datastore” summary panel shows defined prune and garbage collection jobs for all datastores. This allows to quickly assess whether all datastores are correctly set up to regularly run important maintenance tasks. It also offers more flexibility in adjusting the times and avoiding the simultaneous execution of two or more garbage collection jobs, which could lead to unwanted hardware utilization overload.

Proxmox Backup Server seamlessly integrates into Proxmox Virtual Environment – users just need to add the storage for the Proxmox Backup Server as a new storage backup target to Proxmox VE.

Availability

The centrally managed software stack Proxmox Backup Server 3.2 is now available for download at https://www.proxmox.com/downloads. The downloadable ISO image can be quickly installed on bare-metal using the installation wizard. Distribution upgrades from older versions of Proxmox Backup Server are possible via APT. It is also possible to install Proxmox Backup Server on top of Debian.

License: Proxmox Backup Server is free and open-source software, published under the GNU AGPLv3.

Support Subscriptions: For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 520 per server per year, including unlimited backup storage and unlimited backup clients.

Further information:

• Release Notes: https://pbs.proxmox.com/wiki/index.php/Roadmap
  Forum announcement: https://forum.proxmox.com/

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About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPLv3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions GmbH
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – April 24, 2024 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has today released version 8.2 of its server virtualization management platform, Proxmox Virtual Environment. The new version is based on Debian 12.5 (Bookworm), but using a newer Linux kernel 6.8, and includes updates to the latest versions of leading open-source technologies for virtual environments like QEMU 8.1, LXC 6.0, Ceph 18.2, and ZFS 2.2.

Proxmox Virtual Environment 8.2 comes with an import wizard to migrate VMware ESXi guests to Proxmox VE, with a new tool for automated installation from the ISO to bare-metal servers, a backup fleecing feature implementation to decouple slower backup storage from the VM performance, and several UI improvements.

Highlights in Proxmox Virtual Environment 8.2

• Import Wizard for VMware ESXi VMs: Proxmox VE provides an integrated VM importer presented as storage plugin for native integration into the API and web-based user interface. It offers users the ability to import guests directly from other hypervisors. Currently, it allows to import VMware-based VMs (ESXi and vCenter). You can use this to import the VM as a whole, with most of the original configuration settings mapped to Proxmox VE's configuration model.
• Automated and Unattended Installation: Proxmox offers a new ‘proxmox-auto-install-assistant’ tool that fully automates the setup process on bare-metal. Automated installation allows for the rapid deployment of Proxmox VE hosts without the need for manual access to the systems, saving time and reducing the risk of errors. To use this method, an answer file must be prepared with the necessary configuration settings for the installation process. This file can be provided directly in the ISO, on an additional disk such as a USB flash drive, or over the network. Automated installation is useful in various scenarios, such as deploying large-scale infrastructure, automating the setup process, and ensuring consistent configurations across multiple systems.
• Backup Fleecing: When creating a backup of a running VM, a slow backup target can negatively impact guest IO performance during the backup process. Fleecing can reduce this impact by caching data blocks in a fleecing image rather than sending it directly to the backup target, which can help guest IO performance and even prevent hangs at the cost of requiring more storage space. Backup fleecing is especially beneficial when backing up IO-heavy guests to a remote Proxmox Backup Server or other backup storage with a slow network connection.
• Firewall modernization with nftables (technology preview): Proxmox VE comes with a new firewall implementation that uses nftables instead of iptables. The opt-in feature in tech preview is written in the Rust programming language. Although the new implementation is close to feature parity with the existing one, the nftables firewall must be enabled manually and remains a preview to first gather feedback from the community.

Further enhancements

• Device passthrough for containers via GUI: While the API and CLI have supported LXC device passthrough since version 8.1, GUI configuration is now possible as well.
• Advanced backup settings: Backup jobs come with new advanced settings, including performance settings and bandwidth limits.
• Custom ACME directories/providers: This release now supports custom ACME-enabled Certificate Authorities (CA) with optional External Account Binding (EAB) authentication.
• Multiple enhancements in the GUI: Disabling the double-click editing option in the notes field makes it easier to select and copy text without accidentally opening the editor. On edit screens, the reset button is now in a new location reducing the risk of accidental clicks.

Availability

Proxmox VE 8.2 is available for download at https://www.proxmox.com/downloads. The ISO contains the complete feature-set and can be installed on bare-metal.

The virtualization platform from Proxmox comes stocked with all the essential management tools, as well as an easy-to-use, web-based user interface. This allows for simple, out-of-the-box management of the host, either through the command line or a standard web browser. Distribution upgrades from older versions of Proxmox VE are possible with apt. It’s also possible to install Proxmox VE 8.2 on top of Debian.

License: Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3.

Support Subscriptions: For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 110 per year and CPU.

Further information:

• Release Notes - https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_8.2
• Videos: What's new in Proxmox VE 8.2 & Proxmox VE Import Wizard: How to import VMs from VMware ESXi
• Forum Announcement: https://forum.proxmox.com

###

About Proxmox Server Solutions
Proxmox provides powerful and user-friendly open-source server software. Enterprises of all sizes and industries use Proxmox solutions to deploy efficient and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity for its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Facts Proxmox VE
The open-source project Proxmox VE has a huge worldwide user base with more than one million hosts. The virtualization platform is available in 29 languages. More than 150 000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on a enterprise support subscription from Proxmox Server Solutions GmbH.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – February 29, 2024 – Enterprise software developer Proxmox Server Solutions GmbH ("Proxmox" or the "Company") has today released Proxmox Mail Gateway 8.1, the latest version of its open-source email security solution. The Mail Gateway platform is a complete operating system based on Debian 12.5, but defaulting to a newer Linux kernel 6.5, and including ZFS 2.2.2 and PostgreSQL 15.6.

The anti-spam and anti-virus filtering solution functions as a full featured mail proxy, that is deployed between the firewall and the internal mail server. It protects organizations against threats, such as spam, viruses, Trojans, and phishing emails.

What's new in Proxmox Mail Gateway 8.1

• Enhanced rule system: Proxmox Mail Gateway is known for its comprehensive object-oriented rule system, where the mail flow can be controlled and filtered. Improvements in this version now allow the selection of a “match-if” mode for entries in What/Who/When objects, and multiple objects in rules, providing flexible control over whether All, Any, Some but not all, or None must match.
• DKIM signing: Optionally, DKIM signing can now select the signing domain based on header information instead of the envelope information. This allows for the configuration of more stringent DMARC policies in certain environments.
• Support for secure boot: Like the Proxmox virtualization and backup solutions, this version 8.1 is now compatible with Secure Boot. With this security feature, the boot process of a computer can be protected by ensuring that only software with a valid digital signature launches on a machine. Proxmox Mail Gateway now includes a signed shim bootloader trusted by most hardware's UEFI implementations. This allows installing it in environments where Secure Boot is required and enabled. The documentation explains how an existing Proxmox Mail Gateway installation can be switched over to Secure Boot without reinstallation.
• Management via web interface: A new filter- and search box added to the web interface simplifies the management of large deployments. Filtering is now possible in Relay Domains, Transport, Networks, and for Objects in the rule system. Additionally, Croatian and Georgian translations have been added, and translations for other languages have been improved.

Further notable enhancements

• Proxmox ships its own heavily tweaked kernel which all products share. For the Mail Gateway, this is now also reflected in the renaming from pve-kernel and pve-headers to proxmox-kernel and proxmox-headers respectively in all relevant packages. The new proxmox-default-kernel and proxmox-default-headers meta-packages will depend on the currently recommended kernel-series.
• SMTP smuggling mitigation: With a prompt response to the spoofing attack at SMTP protocol level at the end of 2023, the Postfix configuration was secured as quickly as possible against SMTP smuggling in line with the latest recommendations from upstream. Proxmox Mail Gateway users who have not yet updated are encouraged to do so and verify that they have not missed the template change.
• Fixed: Restoring a Mail Gateway backup from a cluster with statistics, does not interfere with creating a fresh cluster on the restored node.
• The Log Tracker tool, which powers the Tracking Center, now uses UTC by default for internal time calculations, eliminating problems with time zone changes such as switching from Standard Time to Daylight Saving Time and vice versa.

Availability

Proxmox Mail Gateway is released under the GNU Affero GPL, v3 and is available as an ISO download, which can be installed on bare metal or on a virtual machine. The ISO contains an installation wizard that automatically installs and configures all the necessary components on the host. This eliminates the need for manual configuration later. The ISO contains the complete feature-set and can be downloaded at https://www.proxmox.com/downloads
Additionally, you can install Proxmox Mail Gateway as a container appliance inside Proxmox VE.

For enterprise use, Proxmox Server Solutions GmbH offers a subscription service that provides access at all levels to the extensively tested, stable Enterprise Repository. This repository provides regular updates via the web interface and is recommended for production use. At the Basic and higher subscription levels, technical support from the Proxmox team is also available. Subscription pricing starts at EUR 175 per host per year for unlimited users and domains.

Further information:

• Find all details in the Release Notes
• Read the Forum Announcement

###

About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution, protecting your mail server against all email threats from the moment they emerge. Organizations of any size can easily deploy and implement the comprehensive anti-spam and anti-virus platform in just a few minutes. Deploying the full featured mail proxy between the firewall and an internal mail server allows you to control all incoming and outgoing email traffic from the central, web-based interface. Proxmox filters all email traffic at the gateway before it reaches the mail server, protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the AGPLv3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support, training services, and an extensive partner ecosystem to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Media contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 30, 2023 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today announced version 3.1 of its open-source server backup solution. The enterprise solution for backing up and restoring VMs, containers, and physical hosts supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. This version comes with secure boot compatibility, support for local sync jobs, and brings countless enhancements improving the general client and backend usability.

What’s new in Proxmox Backup Server 3.1

• Proxmox Backup Server is based on Debian 12.2 “Bookworm”, but uses the newer Linux kernel 6.5 as stable default. The backup platform comes with ZFS 2.2.0 but already includes important fixes from the upcoming ZFS version 2.2.2.
• Support for Secure Boot: Like Proxmox Virtual Environment, this version is now compatible with Secure Boot. This security feature is designed to protect the boot process of a computer by ensuring that only software with a valid digital signature launches on a machine. Proxmox Backup Server now includes a signed shim bootloader trusted by most hardware's UEFI implementations. This allows installing it in environments with Secure Boot active. Existing Backup Server installations can be switched over to Secure Boot without reinstallation.
• Support for local sync jobs: A local sync job enables synchronization of backups between local datastores. Sync jobs can now pull contents not only from remote Proxmox Backup Server instances, but also from local datastores.
• The Proxmox Tape Backup system provides an easy way to copy datastore content to tapes. This version has improved compatibility with LTO 9 tapes and with certain tape libraries.
• The web interface is now available in Croatian and Georgian; other translations have been improved thanks to community contributions.

Proxmox Backup Server seamlessly integrates into Proxmox Virtual Environment – users just need to add the storage for the Proxmox Backup Server as a new storage backup target to Proxmox VE. The software is published under the GNU AGPLv3 license.

Availability

The centrally managed software stack Proxmox Backup Server 3.1 is now available for download at https://www.proxmox.com/downloads. The downloadable ISO image can be quickly installed on bare-metal using the installation wizard. Distribution upgrades from older versions of Proxmox Backup Server are possible via APT. It is also possible to install Proxmox Backup Server on top of Debian.

License: Proxmox Backup Server is free and open-source software, published under the GNU AGPLv3.

Support Subscriptions: For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 495 per server, including unlimited backup storage and unlimited backup-clients.

Further information:

• Find all details in the Release Notes
• Read the Forum Announcement

###

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 23, 2023 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today announced the release of version 8.1 of Proxmox Virtual Environment, its open-source server virtualization management platform. This version comes with several new features, support for Secure Boot, a Software-defined Network stack, a new flexible notification system, and many further enhancements and bug fixes.

Proxmox VE 8.1 is based on Debian 12.2 (“Bookworm”), but uses a newer Linux kernel 6.5 as stable default, and includes updates to the latest versions of leading open-source technologies for virtual environments like QEMU 8.1.2 and LXC 5.0.2. It comes with ZFS 2.2.0 including the most important bugfixes from 2.2.1 already. The virtualization platform adds support for Ceph Reef 18.2.0 and continues to support Ceph Quincy 17.2.7.

Highlights in Proxmox Virtual Environment 8.1

• Support for Secure Boot: This version is now compatible with Secure Boot. This security feature is designed to protect the boot process of a computer by ensuring that only software with a valid digital signature launches on a machine. Proxmox VE now includes a signed shim bootloader trusted by most hardware's UEFI implementations. This allows installing Proxmox VE in environments with Secure Boot active.
• Software-defined Network (SDN): With this version the core Software-defined Network (SDN) packages are installed by default. The SDN technology in Proxmox VE enables to create virtual zones and networks (VNets), which enables users to effectively manage and control complex networking configurations and multitenancy setups directly from the web interface at the datacenter level. Use cases for SDN range from an isolated private network on each individual node to complex overlay networks across multiple Proxmox VE clusters on different locations. The benefits result in a more responsive and adaptable network infrastructure that can scale according to business needs.
• New Flexible Notification System: This release introduces a new framework that uses a matcher-based approach to route notifications. It lets users designate different target types as recipients of notifications. Alongside the current local Postfix MTA, supported targets include Gotify servers or SMTP servers that require SMTP authentication. Notification matchers determine which targets will get notifications for particular events based on predetermined rules. The new notification system now enables greater flexibility, allowing for more granular definitions of when, where, and how notifications are sent.
• Support for Ceph Reef and Ceph Quincy: Proxmox Virtual Environment 8.1 adds support for Ceph Reef 18.2.0 and continues to support Ceph Quincy 17.2.7. The preferred Ceph version can be selected during the installation process. Ceph Reef brings better defaults improving performance and increased reading speed.

Availability

Proxmox VE 8.1 is available for download at https://www.proxmox.com/downloads. The ISO contains the complete feature-set and can be installed on bare-metal.

The virtualization platform from Proxmox comes stocked with all the essential management tools, as well as an easy-to-use, web-based user interface. This allows for simple, out-of-the-box management of the host, either through the command line or a standard web browser. Distribution upgrades from older versions of Proxmox VE are possible with apt. It’s also possible to install Proxmox VE 8.1 on top of Debian.

License: Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3.

Support Subscriptions: For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 105 per year and CPU.

Further information:

• Release Notes - https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_8.1
• Video "What's new in Proxmox VE 8.1"
• Forum Announcement: https://forum.proxmox.com

###

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Facts Proxmox VE
The open-source project Proxmox VE has a huge worldwide user base with more than 900,000 hosts. The virtualization platform has been translated into over 28 languages. More than 130,000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on a enterprise support subscription from Proxmox Server Solutions GmbH.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – June 29, 2023 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today released version 8.0 of its open-source email security solution Proxmox Mail Gateway. The anti-spam and anti-virus filtering solution is a complete operating system now based on Debian 12 (“Bookworm”), but defaulting to a modern Linux kernel 6.2, and includes ZFS 2.1.12, and PostgreSQL 15.3. For users of Proxmox Mail Gateway 7.3 a detailed upgrade documentation is available, helping to enable a smooth upgrade. Additionally, a pre-flight checking script helps to identify potential misconfigurations before the upgrade.

With this major release 8.0, the Proxmox development team adds a new text-based UI (TUI) mode for the installation ISO. The TUI is written in Rust, using the Cursive library. With the new TUI mode, issues with launching the GTK based graphical installer, sometimes observed on both very new and rather old hardware, can be eliminated.

The default settings in many areas of this version have been optimized, reflecting the various deployment possibilities seen among Proxmox Mail Gateway users. This further enhances the out-of-the-box experience and spam detection rates for new users.

Available in the market since 2005, the anti-spam and anti-virus filtering solution Proxmox Mail Gateway functions as a full featured mail proxy, that is deployed between the firewall and the internal mail server. It protects organizations against threats, such as spam, viruses, Trojans, and phishing emails.

Availability

Proxmox Mail Gateway 8.0 is released under the GNU Affero GPL, v3 and is available as an ISO, which can be installed on bare metal, or a virtual machine. The ISO contains an installation wizard that automatically installs and configures all the necessary components on the host. This eliminates the need for manual configuration later. The ISO can be downloaded at https://www.proxmox.com/downloads

A detailed upgrade documentation from 7 to 8 is available.
Additionally, users can install Proxmox Mail Gateway as a container appliance inside Proxmox VE.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, as well as technical support. Subscription prices start at EUR 165 per host, per year, for unlimited users and domains. The Enterprise Repository provides regular updates via the web interface, and is recommended for production use.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution, protecting your mail server against all email threats from the moment they emerge. Organizations of any size can easily deploy and implement the comprehensive anti-spam and anti-virus platform in just a few minutes. Deploying the full featured mail proxy between the firewall and an internal mail server allows you to control all incoming and outgoing email traffic from the central, web-based interface. Proxmox filters all email traffic at the gateway before it reaches the mail server, protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – June 28, 2023 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today announced a new major release 3.0 of its open-source server backup solution. Proxmox Backup Server is based on Debian 12 “Bookworm”, but uses the newer Linux kernel 6.2 and includes ZFS 2.1.12. For users of the Proxmox Backup Server 2.x family, there is an extensively tested and well-documented upgrade path available to enable a smooth upgrade from 2.x to 3.

Further enhancements in Proxmox Backup Server 3.0

• Countless improvements for tape handling: Including the tape backup/restore tasks in the  in the “task-summary” of the GUI dashboard provides a better overview. When restoring a single snapshot, the Proxmox Backup solution now shows a list of the required tapes. When restoring backups, the task does not abort the job if a tape is missing in the changer but waits for the correct tape to be inserted.
• Flexible synchronisation: On the client side, a “transfer-last” parameter for sync jobs is now supported. This provides more flexibility by making it possible to specify the number of most recent backups to be transferred.
• Secure lockout for TFA/TOTP: To further improve security, user accounts with repeatedly failed login attempts—failing the second factor authentication—are locked out. This protects against attacks where the user password is obtained and a brute-force guess is attempted on the second factor. With a recovery key, or manually by an administrator, the user account can be unlocked again.
• Text-based user interface (TUI) for the installer ISO: A text-based user interface has been added and can now be used optionally to gather all required information. This addresses potential issues when launching the GTK-based graphical installer on very new and rather old hardware.

The enterprise backup solution, capable of backing up and restoring VMs, containers, and physical hosts, supports incremental, fully deduplicated backups, significantly reducing network load, required storage space and, as a result, total cost of infrastructure. With the integrated web interface, users can easily manage and monitor all backup tasks from a single pane of glass and quickly recover single files, entire VMs, and archives in case of a disaster.

Proxmox Backup Server seamlessly integrates into Proxmox Virtual Environment—users just need to add the storage for the Proxmox Backup Server as a new storage backup target to Proxmox VE.

Availability

Proxmox Backup Server is free and open-source software, published under the GNU AGPL, v3. The downloadable ISO image can be quickly installed on bare-metal using the installation wizard. The centrally managed software stack Proxmox Backup Server 3.0 is now available for download at https://www.proxmox.com/downloads

Seamless upgrade instructions from Proxmox Backup Server 2 to 3 are available. It is also possible to install Proxmox Backup Server on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 495 per server, including unlimited backup storage and unlimited backup-clients.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

Contact
Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – June 22, 2023 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today released the stable version 8.0 of its server virtualization management platform Proxmox Virtual Environment. This major release is based on the latest Debian 12 (“Bookworm), and comes with an extensively tested and detailed upgrade path for users of Proxmox VE 7.4 or older versions to enable a smooth upgrade. Proxmox VE 8.0 uses a newer Linux kernel 6.2 as stable default, and includes updates to the latest versions of leading open-source technologies for virtual environments like QEMU 8.0.2, LXC 5.0.2, ZFS 2.1.12, and Ceph Quincy 17.2.6.

The virtualization platform from Proxmox comes stocked with all the essential management tools and an easy-to-use, web-based user interface. This allows to conveniently manage individual hosts or the entire data center with out-of-the-box tools - either via a web browser or the command line.

Further highlights in Proxmox Virtual Environment 8.0

• New Ceph Enterprise repository: Proxmox Virtual Environment fully integrates Ceph Quincy, allowing to run and manage Ceph storage directly from any of the cluster nodes and to easily setup and manage a hyper-converged infrastructure. The Ceph source code is packaged by the Proxmox development team and—after extensive tests—delivered in the stable Enterprise repository. This unifies the delivery of Ceph with other components of Proxmox VE. With version 8.0, all Proxmox customers with an active subscription can now access the stable Ceph Enterprise repository recommended for production environments.
• Authentication realm sync jobs: The synchronization of users and groups for LDAP-based realms (LDAP & Microsoft Active Directory), can now be configured to run automatically at regular intervals. This simplifies management, and removes a source for configuration errors and omissions compared to synchronizing the realm manually.
• Network resources defined for Software-defined Networking (SDN) are now also available as objects in the access control subsystem (ACL) of Proxmox VE. It is possible to grant fine-grained permissions for host network bridges and VNets to specific users and groups.
• Resource mappings: Mappings between resources, such as PCI(e) or USB devices, and nodes in a Proxmox VE cluster, can now be created and managed in the API and the web interface. VM guests can get such an abstract resource assigned, which can be matched with concrete resources on each node. This enables offline migrations for VMs with passed-through devices. The mappings are also represented in the ACL system of Proxmox VE, allowing a user to be granted access to one or more specific devices, without requiring root access. In case a conflicting entry is detected, e.g. due to address changes or overlaps, users are informed on VM start.
• Secure lockout for Two-factor authentication/TOTP: To further improve security, user accounts with too many login attempts - failing the second factor authentication - are locked out. This protects against attacks where the user password is obtained and a brute-force guess is attempted on the second factor. If TFA fails too many times in a row, the user account is locked out for one hour. If TOTP failed too many times in a row, TOTP is disabled for the user account. The user account can be unlocked again with a recovery key, or manually by an administrator.
• Text-based user interface (TUI) for the installer ISO: A text-based user interface has been added and can now be used optionally to gather all required information. This eliminates issues when launching the GTK-based graphical installer that sometimes occur on very new as well as rather old hardware.
• The x86-64-v2-AES model is the new default CPU type for VMs created via the web interface. It provides important extra features over the qemu64/kvm64, and improves performance of many computing operations.

Availability

Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3. The ISO contains the complete feature-set and can be installed on bare-metal. Proxmox VE 8.0 is available for download at https://www.proxmox.com/downloads

Seamless upgrade instructions from Proxmox VE 7.x to 8.x are available.
It’s also possible to install Proxmox VE 8 on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 105 per year and CPU.

###

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Facts Proxmox VE
The open-source project Proxmox VE has a huge worldwide user base with more than 800,000 hosts. The virtualization platform has been translated into over 26 languages. More than 110,000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on a enterprise support subscription from Proxmox Server Solutions GmbH.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – March 29, 2023 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has today released version 2.4 of Proxmox Backup Server bringing dark mode for the web interface, LDAP authentication realm, and support for WORM tapes. The open-source server backup solution allows backing up and restoring VMs, containers, and physical hosts. By supporting incremental, fully deduplicated backups, it significantly reduces network load, required storage space and, as a result, total infrastructure cost. With the integrated web interface, users can easily manage and monitor all backup tasks from a single pane of glass and quickly recover single files, entire VMs, and archives in case of a disaster.

What’s new in Proxmox Backup Server 2.4

This version is based on Debian 11.6 “Bullseye”, but using a newer Linux kernel 5.15, and including ZFS 2.1.9. While the 5.15 kernel is the stable default, Linux kernel 6.2 can optionally be installed for better support of the latest hardware.

• Dark Mode: The fully integrated theme “Proxmox Dark” is available for the web interface. By default, the prefers-color-scheme media query from the browser or operating system will be used to decide the default color scheme. Users can override the theme via a newly added Color Theme selector in the user menu.
• Added LDAP authentication realm and user synchronization: This version now allows user authentication against an external LDAP server. In order to be able to log in, users in LDAP realms must be added manually. Alternatively, users can be synced automatically from the LDAP server. In the web interface the dialog Add User has a realm field, making it possible to manually add users to an LDAP or OpenID Connect realm.
• WORM tapes: Initial support for WORM (write once, read many) tapes is available with version 2.4. With the special WORM cartridges, data can only be written to the memory once; subsequent changes are not possible. WORM compliant storage is often a requirement for organizations with legal regulations. In addition, it serves, for example, to protect against the accidental or intentional deletion of critical data. Proxmox Backup Server makes no distinction between normal and WORM tapes, so different naming schemes and dedicated media pools are recommended.

Further notable enhancements

• Task logs can now be downloaded directly in the web interface as text files for further inspection.
• Installation ISO: During installation, the UTC timezone can be selected, facilitating the synchronization of hosts or clusters that are distributed across multiple geographic locations.
• The technical documentation has been further improved with more detailed explanations of the Garbage Collection (GC). Also, dark mode support for the docs and the API viewer widget has been added.

Proxmox Backup Server seamlessly integrates into Proxmox Virtual Environment – users just need to add the storage for the Proxmox Backup Server as a new storage backup target to Proxmox VE. The software is published under the GNU AGPL, v3 license.

Availability

Proxmox Backup Server is free and open-source software, published under the GNU AGPL, v3. The downloadable ISO image can be quickly installed on bare-metal using the installation wizard. The centrally managed software stack Proxmox Backup Server 2.4 is now available for download at https://www.proxmox.com/downloads Distribution upgrades from older versions of Proxmox Backup Server are possible via APT. It is also possible to install Proxmox Backup Server on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 495 per server, including unlimited backup storage and unlimited backup-clients.

About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact
Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – March 28, 2023 – Enterprise software developer Proxmox Server Solutions GmbH ("Proxmox") today has released Proxmox Mail Gateway 7.3, the latest version of its open-source email security solution. The anti-spam and anti-virus filtering solution functions as a full featured mail proxy, is deployed between the firewall and the internal mail server. It protects organizations against threats, such as spam, viruses, Trojans, and phishing emails.

What’s new in Proxmox Mail Gateway 7.3

• Proxmox Mail Gateway is a complete operating system based on Debian 11.6 (“Bullseye”), but using a newer Linux kernel 5.15, and including ZFS 2.1.9 and PostgreSQL 13.10. While the 5.15 kernel is the stable default, Linux kernel 6.2 can optionally be installed for better support of the latest hardware.
• With this version, the Proxmox developers integrate the new major version 4.0.0 of Apache SpamAssassin. It is now possible to detect spam inside of attachments. The detection is implemented for the file types .pdf, .odt, .docx, .doc, .rtf, as well as images (through OCR). Additionally, there is improved support for using information from the Domain-based Message Authentication, Reporting and Conformance (DMARC) policy, for more in-depth analysis. In general, all SpamAssassin configuration files shipped with the pmg-api package were adapted to the new SpamAssassin features.
• TLS-policy improvements: Proxmox Mail Gateway now can enforce TLS encryption for inbound mail.
• The SMTPUTF8 support has been improved and can now be disabled through the API or GUI.
• Dark theme: Like other Proxmox solutions, the Mail Gateway now brings a fully-integrated "Proxmox Dark" theme for the web interface. To detect if a user has requested light or dark color themes, the CSS media feature prefers-color-scheme is used. Through settings in the operating system or their browser, users can indicate their preferences. However, users can switch between the color schemes manually in the web interface as well. Furthermore, the documentation as well as the Proxmox Mail Gateway API Viewer now have a dark mode.
• Task logs can now be downloaded directly as text files for further inspection.
• To avoid the browser error "Connection reset", HTTP requests are automatically redirected to HTTPS. This can prevent confusion, especially after setting up a Proxmox Mail Gateway host for the first time.

Availability

Proxmox Mail Gateway 7.3 is released under the GNU Affero GPL, v3 and is available as an ISO, which can be installed on bare metal, or on a virtual machine. The ISO contains an installation wizard that automatically installs and configures all the necessary components on the host. This eliminates the need for manual configuration later. The ISO contains the complete feature-set and can be downloaded at https://www.proxmox.com/downloads

Additionally, you can install Proxmox Mail Gateway as a container appliance inside Proxmox VE.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, as well as technical support. Subscription prices start at EUR 165 per host, per year, for unlimited users and domains. The Enterprise Repository provides regular updates via the web interface, and is recommended for production use.

About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution, protecting your mail server against all email threats from the moment they emerge. Organizations of any size can easily deploy and implement the comprehensive anti-spam and anti-virus platform in just a few minutes. Deploying the full featured mail proxy between the firewall and an internal mail server allows you to control all incoming and outgoing email traffic from the central, web-based interface. Proxmox filters all email traffic at the gateway before it reaches the mail server, protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact
Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – March 23, 2023 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") released version 7.4 of its server virtualization management platform, Proxmox Virtual Environment, today. The new version includes a focus on improved usability, bringing even more management tasks to the web interface.

Highlights in Proxmox Virtual Environment 7.4

• Proxmox VE 7.4 is based on Debian 11.6 (“Bullseye”), but uses a newer, long-term supported Linux kernel 5.15 and includes updates to the latest versions of leading open-source technologies for virtual environments, such as QEMU 7.2, LXC 5.0.2, and ZFS 2.1.9. The platform supports Ceph Quincy 17.2.5 as default for new installations or optionally Ceph Pacific 16.2.11.
• By default, Proxmox VE uses a newer, long-term supported Linux kernel 5.15. Optionally, Linux kernel 6.2 can be installed, providing support for the current features of the latest hardware. The kernel can be installed via the shell by selecting the pve-kernel-6.2 meta package. After a reboot, the new kernel will be activated.
• Dark theme: A fully-integrated "Proxmox Dark" theme variant is now available for the web interface and the lovers of darkness. The theme is based on the Crisp light theme. To detect if a user has requested light or dark color themes, the CSS media feature prefers-color-scheme is used. Through settings in the operating system or their browser, users can indicate their preferences. However, users can switch between the color schemes manually in the web interface as well.
• Ceph OSD: The web interface and the API now display detailed OSD information. This reduces work for administrators, as they no longer have to gather the necessary information from various places.
• Task logs can be downloaded as text files in the GUI, which helps to make further inspection easier.
• Sorting of the resource tree: VMs or containers can now be sorted by their names or by VMID, by selecting the appropriate sort-order. Especially in large clusters, sorting all guests by name can provide a better overview for users who rely on them.
• HA Manager: By adding a CRM command, an online node can be switched manually into maintenance (without reboot). Also, the support for the HA Cluster Resource Scheduler (CRS) stack was extended and can now rebalance VMs & containers automatically on start, not only on recovery.

Further notable enhancements

• To avoid the browser error "Connection reset", HTTP requests are automatically redirected to HTTPS. This can prevent confusion, especially after setting up a Proxmox VE host for the first time.
• When users select the storage view for a Proxmox Backup Server storage, they can then use the columns for encryption and verification status for sorting.
• Containers: The open-source architectures riscv32 and riscv64 can be used for LXC containers. Additionally, some container templates for amd64 were updated to newer upstream versions.
• Virtual guests: Renaming the "Bulk Stop" action to "Bulk Shutdown" reflects the actual behavior of this action.
• HA Manager: In preparation for the dynamic load scheduling in clusters, the high availability manager abstracts and unifies the needed resources (CPU, memory) of the different HA services (containers, VMs).
• Improved management for Proxmox VE clusters: the Proxmox Offline Mirror tool now supports using HTTP proxies for fetching updates.
• Storage: With the help of the option content-dirs, the specific subdirectories for content-types—for example isos, container templates, backups, guest disks—can be overridden with custom values.
• Access Control: By refactoring the ACL computation, performance significantly improved—up to a factor of 450—in setups with many entries and huge user bases or with many access control rules.
• Notifications for new package updates can optionally be disabled, further improving the administration experience .
• Installation ISO: During installation, the UTC timezone can be selected, facilitating the synchronization of hosts or clusters that are distributed across multiple geographic locations.
• Localization (i18n): Translations for Arabic, French, German, Italian, Japanese, Russian, Slovenian, and Traditional Chinese were improved.

Availability

Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3. The ISO contains the complete feature-set and can be installed on bare-metal. Proxmox VE 7.4 is available for download at https://www.proxmox.com/downloads

The virtualization platform from Proxmox comes stocked with all the essential management tools, as well as an integrated, web-based user interface. This allows for simple out-of-the-box management of the host, either through the command line or a standard web browser.

Distribution upgrades from older versions of Proxmox VE are possible with apt. It’s also possible to install Proxmox VE 7.4 on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 105 per year and CPU.

Forum Announcement
https://forum.proxmox.com

Video tutorial
What's new in Proxmox VE 7.4

Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 750.000 hosts. The virtualization platform has been translated into over 26 languages. More than 110.000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on a enterprise support subscription from Proxmox Server Solutions GmbH.

About Proxmox Virtual Environment
Proxmox Virtual Environment (Proxmox VE) is the leading open-source platform for all-inclusive enterprise virtualization. With the central web interface, you can easily run VMs and containers, manage software-defined storage and networking functionality, high-availability clustering, and multiple integrated out-of-the-box tools like backup/restore, live migration, replication, and the firewall. Enterprises use the powerful yet easy-to-manage, all-in-one solution to meet the core requirements of today’s modern data centers. Proxmox VE allows them to remain adaptable for future growth, thanks to its flexible, modular and open architecture.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Media contact
Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 30, 2022 – Enterprise software developer Proxmox Server Solutions, the company behind Proxmox Mail Gateway, announces today point release 7.2 of its open-source email security solution. Proxmox Mail Gateway, available since 2005, is one of few enterprise-grade open-source email filtering solutions. It protects organizations against threats such as spam, viruses, Trojans, and phishing emails and functions as a fully-featured mail proxy that is deployed between the firewall and the internal mail server.

Enhancements in Proxmox Mail Gateway 7.2

• Proxmox Mail Gateway 7.2 is a complete operating system based on Debian 11.5 (“Bullseye”), using the newer Linux kernel 5.15, as well as ZFS 2.1.6. The Proxmox developers ship the latest upstream release of Apache SpamAssassin 3.4.6 with an updated rule-set for its Mail Gateway. PostgreSQL 13.8 is also included.
• Enhancements in the rule system: With the comprehensive object-oriented rule system of Proxmox Mail Gateway, users can create customized rules for their mail environment. This version improves the handling of international emails by adding support for Unicode characters and better handles SMTPUTF8 emails.
• The Quarantine interface brings improved usability for administrators and end-users alike:
  • In the administrator view, the admin can now select multiple emails, the ‘Receiver’ information is displayed, and there is a context menu in the mail-listing, for the ‘Attachment’ and ‘Virus’ quarantines.
  • The SpamAssassin rules can now be visually sorted by scores in the SpamInfo grid, thus helping to accelerate the decision on which ones to select and remove. The 'Deliver' and 'Delete' actions are now colorized, improving intuitive handling of common actions.
  • By additionally displaying attachments in the ‘Spam’ and ‘Virus’ quarantine, administrators get a more complete overview of the email in question.
  • ‘Virus’ and ‘Attachment’ quarantine can now optionally be filtered by ‘Receiver’ – a function especially helpful in larger deployments.
  • The Proxmox Offline Mirror tool allows keeping Proxmox Mail Gateway nodes – with restricted or without access to the public internet – up-to-date and running. With the ‘proxmox-offline-mirror’ utility, it is possible to manage a local apt mirror for all package updates for Proxmox and Debian projects. From that mirror, users can create an external medium (USB flash drive or a local network share) and can then update their policy-restricted or air-gapped systems. For subscribers with a Premium or Standard subscription level, Proxmox offers an offline subscription key for its product portfolio.

Availability

Proxmox Mail Gateway is released under the GNU Affero GPL, v3 and is available as an ISO, which can be installed on bare metal, or a VM. The ISO contains an installation wizard that automatically installs and configures all the necessary components on the host. This eliminates the need for manual configuration later. The ISO contains the complete feature-set and can be downloaded here

Additionally, you can install Proxmox Mail Gateway as a container appliance inside Proxmox VE.

Proxmox Server Solutions GmbH offers enterprise support contracts on a subscription basis, which provides access to an extensively tested Enterprise Repository, regular updates via the web interface, and to technical support. Prices start at EUR 149 per year and host, and each subscription includes unlimited users and unlimited domains.

About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution, protecting your mail server against all email threats from the moment they emerge. Organizations of any size can easily deploy and implement the comprehensive anti-spam and anti-virus platform in just a few minutes. Deploying the full featured mail proxy between the firewall and an internal mail server allows you to control all incoming and outgoing email traffic from the central, web-based interface. Proxmox filters all email traffic at the gateway before it reaches the mail server, protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 29, 2022 – Enterprise software developer Proxmox Server Solutions (henceforth "Proxmox"), the company behind Proxmox Backup Server announces enhancements to its open-source server backup solution, which are now generally available. The enterprise solution for backing up and restoring VMs, containers, and physical hosts supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. This version brings enhancements for the web interface, tape backup, as well as countless general client and backend improvements.

Highlights in Proxmox Backup Server 2.3

• Proxmox Backup Server is based on Debian 11.5 (“Bullseye”), uses the newer Linux kernel 5.15 as stable default and kernel 5.19 as opt-in, and includes ZFS 2.1.6. Features such as fine-grained access control, data integrity verification, and the possibility to create off-site backups through remote sync and tape backups help planning a ransomware defense strategy and ensure that critical data stays protected.
• Pruning namespaces: Pruning lets you specify which backup snapshots you want to keep, in a systematic manner. With this version, the prune job system has been expanded to take namespaces into account: Up until now it has only been possible to add a single-schedule per datastore; now pruning can also be limited to certain namespaces. With the built-in prune simulator users can explore the effect of different retention options with various backup schedules. Namespaces in Proxmox Backup Server (introduced in version 2.2) help organize backups from multiple sites (local and remote) hierarchically, while keeping the required storage space minimal through deduplication. With the new fine-grained control in Proxmox Backup Server 2.3, businesses can determine when and how deeply a particular namespace is pruned.
• Support for sending metrics to InfluxDB: Version 2.3 of Proxmox Backup Server can gather and send critical stats, relevant for measuring performance, to InfluxDB, an open-source database management system for time series. Such metrics are, for example, CPU load averages and IOwait percentages, NIC traffic statistics, filesystem usage or IO for datastores.
• Tape backup improvements: The inventory command, which can be used for disaster recovery, can now optionally restore the catalogs of backups stored on tape, potentially saving critical time in a worst case scenario.
• Proxmox Offline Mirror: The Proxmox Offline Mirror tool allows to keep the Proxmox Backup Server nodes – with restricted or without access to the public internet – up-to-date and running. With the ‘proxmox-offline-mirror’ utility it’s possible to manage a local APT mirror for all package updates for Proxmox and Debian projects. From that mirror, users can create an external medium (USB flash drive or a local network share), and can then update their policy-restricted or air-gapped systems. For subscribers with a Premium or Standard subscription level, Proxmox offers an offline subscription key for its product portfolio.

The whole software stack of Proxmox Backup Server is written in Rust – a modern, fast, and memory-efficient language. Currently, the backup solution seamlessly integrates into Proxmox Virtual Environment – users just need to add the storage for the Proxmox Backup Server as a new storage backup target to the virtualization platform.

Availability

Proxmox Backup Server is free and open-source software, published under the GNU AGPL, v3. The downloadable ISO image can be quickly installed on bare-metal using the installation wizard. The centrally managed software stack Proxmox Backup Server 2.3 is now available for download at https://www.proxmox.com/downloads

Distribution upgrades from older versions of Proxmox Backup Server are possible via APT. It is also possible to install Proxmox Backup Server on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 449 per server, including unlimited backup storage and unlimited backup-clients.

About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox® is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 22, 2022 – Enterprise software developer Proxmox Server Solutions (henceforth "Proxmox"), the company behind Proxmox Virtual Environment (VE) today announced enhancements to its server virtualization management platform, now generally available. Users can seamlessly deploy virtual machines and containers, software-defined storage, and networking on a single platform. The new point release Proxmox VE 7.3 is based on Debian 11.5 (“Bullseye”), but using a newer Linux kernel 5.15, and includes updates to the latest versions of leading open-source technologies for virtual environments like QEMU 7.1, LXC 5.0.0, and ZFS 2.1.6. The virtualization platform supports Ceph Quincy 17.2.5 as default for new installations, and optionally Ceph Pacific 16.2.10.

Proxmox Virtual Environment 7.3 comes with initial support for Cluster Resource Scheduling, enables updates for air-gapped systems with the new Proxmox Offline Mirror tool, and has improved UX for various management tasks, as well as interesting storage technologies like ZFS dRAID.

Highlights in Proxmox Virtual Environment 7.3

Technology preview: Initial support for a Cluster Resource Scheduler (CRS): In cases when the Proxmox HA Manager needs to find a new host node for a HA service (e.g. recovery, shutdown-policy, HA group configuration changes), it previously used to only count the number of active HA services for load balancing. This version integrates the TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) method, a multi-criteria decision making analysis, for finding the best alternative target node.

When the new scheduler mode "Static Load" is applied, the TOPSIS tool uses the "total memory" and "vCPU" properties of the HA resource to guide the decision on which node in the cluster a HA resource is started on. With this CRS foundation established, the Proxmox developers plan to extend it in future releases with a dynamic load scheduler and live load balancing.

Proxmox Offline Mirror: The Proxmox Offline Mirror tool allows to keep Proxmox VE nodes – with restricted or without access to the public internet – up-to-date and running. With the ‘proxmox-offline-mirror’ utility it’s possible to manage a local apt mirror for all package updates for Proxmox and Debian projects. From that mirror, users can create an external medium (USB flash drive or a local network share), and can then update their policy-restricted or air-gapped systems. For subscribers with a Premium and Standard subscription level, Proxmox offers an offline subscription key for its product portfolio.

Support for Ceph Quincy and Ceph Pacific: Proxmox Virtual Environment 7.3 supports Ceph Quincy 17.2.5 as default and Ceph Pacific 16.2.10. The preferred Ceph version can be selected during the installation process. The Proxmox developers have added heuristical checks to see if it is safe to stop or remove a service instance (MON, MDS, OSD). If removing or stopping a service would affect the cluster operation, the web interface will now alert users with a warning. Overall, the usability for creating new clusters, including selecting the network and checking duplicate IP, has been improved.

Tags for virtual guests: With the option of tagging virtual guests in the web interface, administrators can gain even better overview and simplify management tasks, for example by differentiating between ‘production’ and ‘testing’ VMs. Tags can either be user-modifiable, or restricted to higher-privileged administrator accounts. Tagging has been already available in the configuration (CLI, API), providing users with a possibility for automatization.

Further notable enhancements

• ZFS dRAID pools: This version comes with support for creating ZFS dRAID pools in the web interface. Declustered RAID (dRAID) – a feature added in OpenZFS 2.1.0 – is a software raid implementation improving disk recovery time in large storage arrays. If a disk drive fails, the hot spare drive(s) participating in the RAID are used for rebuilding. As its layout is more complex than RAIDz, dRAID is an option for large storage arrays.
• Virtual Machines:
  • CPU pinning: With the taskset command, a VM can be bind to a certain or a range of CPU core(s). CPU affinity can help optimize cache performance, for example in multiprocessing computers.
  • USB devices have been reworked and can now be hot-plugged; also it’s possible to pass through up to 14 USB devices (previous: five) to a virtual machine.
• Proxmox VE Mobile App: The Proxmox VE Android app is based on Flutter 3.0, and allows users to access the Proxmox VE server(s), and manage cluster, nodes, VMs, and containers. The app now supports and targets Android 13. Also feedback about running backup tasks is available.

Availability

Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3. The ISO contains the complete feature-set and can be installed on bare-metal. Proxmox VE 7.3 is generally available for download.

The virtualization stack from Proxmox comes stocked with all the essential management tools, as well as an easy-to-use, web-based user interface. This allows for simple, out-of-the-box management of the host, either through the command line or a standard web browser.

Distribution upgrades from older versions of Proxmox VE are possible with apt. It’s also possible to install Proxmox Virtual Environment 7.3 on top of Debian Bullseye.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to an Enterprise Repository, with regular updates via the web interface, as well as technical support directly from the developers. Prices start at EUR 95 per year and CPU.

Forum Announcement
https://forum.proxmox.com/threads/proxmox-ve-7-3-released.118390/

Video tutorial
What's new in Proxmox VE 7.3

Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 600.000 hosts. The virtualization platform has been translated into over 26 languages. More than 100.000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on a enterprise support subscription from Proxmox Server Solutions GmbH.

About Proxmox Server Solutions
Proxmox® is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

Updates include a new namespace feature for efficient backup management, maintenance modes with operations tracking, optimized file restore, and general performance improvements.

VIENNA, Austria – May 18, 2022 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today announced the latest update to its open-source backup solution Proxmox Backup Server, which makes it easy to back up and restore virtual machines, containers, and physical hosts. The new version 2.2 is based on Debian 11.3 “Bullseye”, but using the newer Linux kernel 5.15, and including ZFS 2.1.4.

The enterprise backup solution from Proxmox supports incremental, fully deduplicated backups, significantly reducing network load, required storage space and, as a result, total cost of infrastructure. Featuring strong client-side encryption, Proxmox Backup Server allows businesses to back up data to targets which are not fully trusted, in a space-efficient manner and restore VMs, archives or single objects in a flash. New features and capabilities in Proxmox Backup Server 2.2 further ensure that data is reliably backed up and restored, efficiently organized, and easily managed.

What’s new in Proxmox Backup Server 2.2

“Namespace” feature to significantly improve backup management of multiple sources on-premises, remotely, and in the cloud: Proxmox Backup Server stores backup data (that is: backup snapshots and their referenced chunks) in datastores, and multiple datastores can be configured. The deduplication of data, which helps improve storage utilization, is based on reusing chunks, which are referenced by the indexes in a backup snapshot. This means that multiple indexes can reference the same chunks (even across backup snapshots), reducing the amount of space needed to contain the data.

To help neatly organize backups and minimize the required storage space, Proxmox Backup Server 2.2 introduces namespaces. Backups from multiple sites (local and remote) or Proxmox VE setups can now be organized into namespaces within a single datastore. This allows for optimal use of deduplication, as this technique is only applied at the datastore level, and reduces the maintenance burden of managing multiple datastores.

With namespaces, businesses can safely back up from different sources to one (physical) datastore, with more fine-grained access control and without having naming conflicts. The "namespace" feature allows sharing a single datastore, including the chunk store, across multiple backup ID namespaces (e.g., one per Proxmox VE cluster).

Maintenance Mode with Active Operations Tracking: To enable administrators to safely execute maintenance tasks on a datastore, the newly implemented “read-only” and “offline” maintenance modes were added. Additionally, by tracking active operations, Proxmox Backup Server can check for currently conflicting access operations, for example a previously started backup restore task, and await their completion before entering maintenance mode, while simultaneously blocking new incoming operations.

Performance and Back-End Improvements: General improvements in the back-end help to drastically reduce memory usage during backup. By extensively analyzing the behavior of the system allocator, and then optimizing the interaction between the allocator and Proxmox Backup Server, for example, the memory footprint has been reduced significantly.
Additionally, with version 2.2, it is now possible to do a dry-run of a desired backup via the command line, to view what will happen.

Improved File Restore: To confidently restore data and get back to business quickly, this version includes enhanced file restore. Proxmox Backup Server adds support for downloading Zstandard-compressed tar archives. Compared to the already included zip format, tar archives support more file types (for example, hard links and device nodes), and zstd allows for fast and efficient compression.
To improve the handling of non-ASCII code point extraction under Windows, the language encoding flag is added to files when creating a zip archive, if the entry is valid UTF-8. Additionally, ZFS pools get mounted only on demand, and the automatic pre-mounting of ZFS pools is avoided to prevent the upfront time-cost.

New GUI enhancements greatly improve productivity: With the included web interface, backup administrators can effectively reduce work hours. To simplify management, this version now brings the ‘group-filter’ to the GUI. The "Add" and "Edit" windows of the sync jobs and tape-backup jobs panels have an added tab for the filter option. Users can specify in the GUI if they want to process only a specific backup type (ct, vm, host), a specific group, or a regex that matches the group-ID for such a job. The node configuration file now supports multi-line comments and has a Markdown-aware panel for recording structured notes. Some translations have been updated including Arabic, French, German, Japanese, Polish, and Turkish.

"Our customers and partners are looking for efficient ways to protect their business data, while keeping the maintenance burden low. With Proxmox Backup Server 2.2, we make this even easier by adding namespaces and lowering overhead."

Proxmox Backup Server is designed as a standalone solution, thus avoiding vendor lock-in. The client-server backup solution enables secure backup and restore of critical business data and is currently optimized for the open-source virtualization management platform Proxmox Virtual Environment, the company’s flagship product. Users simply need to add the Proxmox Backup Server datastore as a new backup storage target to Proxmox VE.

Availability

New capabilities are now available in the Proxmox Backup Server 2.2 release for all users. New users can download the ISO image, which can be easily installed on bare-metal, using the installation wizard. Proxmox Backup Server is free and open-source software, published under the GNU AGPL, v3 license.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 449 per server, including unlimited backup storage and unlimited backup-clients.

Forum Announcement
https://forum.proxmox.com/threads/proxmox-backup-server-2-2-available.109724

Video tutorial
What's new in Proxmox Backup Server 2.2

About Proxmox Server Solutions
Proxmox® is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructure, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.
Follow us on LinkedIn https://www.linkedin.com/company/proxmox or on YouTube https://www.youtube.com/user/ProxmoxVE

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – May 04, 2022 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has today released Proxmox Virtual Environment 7.2. The new version of the server virtualization management platform is based on Debian 11.3 (Bullseye), but using a newer Linux kernel 5.15.30, and includes updates to the latest versions of leading open-source technologies for virtual environments, like QEMU 6.2.0, LXC 4.0.12, and ZFS 2.1.4. Proxmox VE supports Ceph Pacific 16.2.7, in addition to offering continued support for Ceph Octopus 15.2.16 (until mid 2022).

What’s new in Proxmox Virtual Environment 7.2

• Backup/Restore:
  • Notes templates: Meta-information can be added via a notes-template for backup jobs, to better distinguish and search for backups. This template is evaluated as soon as the job is executed, and added to any resulting backup. Notes templates can contain template variables like {{guestname}} or {{cluster}}.
  • To benefit from the Rust code of Proxmox Backup Server, the Proxmox developers make use of perlmod, a Rust crate which allows exporting Rust modules as Perl packages. perlmod is used by Proxmox to transfer data between Rust and Perl, thus implementing parts of Proxmox VE and Proxmox Mail Gateway in Rust.
  • The next-event scheduling code was updated via this Perl-to-Rust-binding (perlmod) and now uses the same code as Proxmox Backup Server. Users can not only specify the existing weekday, time, and time range, but now also a specific date and time (e.g., *-12-31 23:50; New Year's Eve, 10 minutes before midnight every year), date ranges (e.g., Sat *-1..7 15:00; first Saturday every month at 15:00), or repeating ranges (e.g., Sat *-1..7 */30; first Saturday every month, every half hour).
  • Some basic restore settings, for example guest name or memory, can now be overwritten in the enhanced backup-restore dialog in the web interface.
  • A new ‘job-init’ hook step was added to the backup process. Among other things, it can be used to prepare the backup storage, for example, by starting the storage server.
• High Availability Manager:
  • By improving the local resource manager (pve-ha-lrm) scheduler which launches workers, the amount of configurable services that can be handled per single node has increased. This helps in large deployments, as the services at the end of the queue are also checked to ensure that they are still in the target state.
  • By introducing a skip-round command to the integrated HA simulator in Proxmox VE, it has become easier to test races in scheduling (on the different nodes).
• Cluster: Regarding the creation of new VMs or containers, version 7.2 allows you to configure a desired range from which the new VMIDs are proposed via the web interface. The lower and upper boundaries can be set in the Datacenter -> Options panel. Setting lower equal to upper disables auto-suggestion completely, meaning the administrator has to manually enter an ID.
• Ceph: Proxmox VE supports Ceph Pacific 16.2.7 and Ceph Octopus 15.2.16 (with continued support until mid 2022). This version now also supports creating and destroying erasure-coded pools, which can be added as Proxmox VE storage entries, and help to reduce the amount of disk space required. A new option in the GUI allows for passing the keyring secrets of external Ceph clusters when adding an RBD or CephFS storage to Proxmox VE.
• Web interface: Further enhancements in the web interface allow for example for safe reassignment of a VM disk or CT volume to another guest on the same node; the reassigned disk/volume can be attached at a different bus/mountpoint on the destination guest. This can help in cases of upgrades, restructuring, or after disaster recovery.
• Management: Many improvements in Proxmox VE 7.2 enable even more convenient management of the system. For example, a particular kernel version can be selected to boot persistently from a running system, through ‘proxmox-boot-tool kernel pin’. The selection can be used either indefinitely or just for the next boot. This eliminates the need to watch the boot process to select the desired kernel version in the bootloader screen.

Further enhancements and bug fixes

• In the installation ISO, ZFS installs can be configured to use various compression algorithms (e.g., zstd, gzip, etc.).Additionally, the memtest86+ package, a tool aimed at memory failure detection, has been updated to the completely rewritten 6.0b.
• Further improvements have been added to virtual machines (KVM/QEMU); one to highlight is support for the accelerated virtio-gl (VirGL) display driver. For VirtIO and VirGL display types, SPICE is enabled by default. In modern Linux distributions, changing the graphics card to VirGL can significantly increase frames per second (FPS). For Proxmox containers (LXC), many templates have also been refreshed or newly added, such as the NixOS container template.
• The Proxmox VE Android app now provides a simple dark theme and enables it if the system settings are configured to use dark designs. The mobile app also provides an inline console by relaying noVNC for VMs, and xterm.js for containers and the Proxmox VE node shell in the GUI.
• To prevent a network outage during the transition from ifupdown to ifupdown2, the ifupdown package was modified to not stop networking upon its removal.

Availability

Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3. The ISO contains the complete feature-set and can be installed on bare-metal. Proxmox VE 7.2 is available for download.

The virtualization platform from Proxmox comes stocked with all the essential management tools, as well as an easy-to-use, web-based user interface. This allows for simple, out-of-the-box management of the host, either through the command line or a standard web browser.

Distribution upgrades from older versions of Proxmox VE are possible with apt. It’s also possible to install Proxmox VE 7.2 on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to an Enterprise Repository, with regular updates via the web interface, as well as technical support directly from the developers. Prices start at EUR 95 per year and CPU.

Forum Announcement
https://forum.proxmox.com/threads/proxmox-ve-7-2-released.108970

Video tutorial
What's new in Proxmox VE 7.2

Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 600,000 hosts. The virtualization platform has been translated into over 26 languages. More than 88,000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on latest open-source technologies. Tens of thousands of customers rely on an enterprise support subscription from Proxmox Server Solutions GmbH.

About Proxmox Virtual Environment
Proxmox Virtual Environment (Proxmox VE) is the leading open-source platform for all-inclusive enterprise virtualization. With the central web interface, you can easily run VMs and containers, manage software-defined storage and networking functionality, high-availability clustering, and multiple integrated out-of-the-box tools like backup/restore, live migration, replication, and the firewall. Enterprises use the powerful yet easy-to-manage, all-in-one solution to meet the core requirements of today’s modern data centers. Proxmox VE allows them to remain adaptable for future growth, thanks to its flexible, modular and open architecture.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 30, 2021 – Enterprise software developer Proxmox Server Solutions GmbH ("Proxmox" or the "Company") has today released Proxmox Mail Gateway 7.1, the latest version of its open-source email security solution. The Mail Gateway is a complete operating system based on Debian Bullseye 11.1, but using a newer Linux kernel 5.13, and OpenZFS 2.1.

The anti-spam and anti-virus filtering solution, available since 2005, functions as a full-featured mail proxy, that is deployed between the firewall and the internal mail server. It protects organizations against threats, such as spam, viruses, Trojans, and phishing emails. As one of the few open-source enterprise email filtering solutions available, Proxmox Mail Gateway continually provides updates to current versions of its underlying Linux distribution, helping companies to stay safe and up-to-date in a security sensitive domain.

What’s new in Version 7.1

Proxmox ships the latest upstream release of Apache SpamAssassin 3.4.6 with an updated rule-set for its Mail Gateway. PostgreSQL 13.5 is also included.

• This release brings enhancements to the API. Support for IP configuration via DHCP has been added. While email still needs working DNS records, users can now manage and configure the IP for Proxmox Mail Gateway in the DHCP configuration. When adding a new entry to a ‘Who’ object, a duplicate check is performed before saving. Proxmox Mail Gateway uses the first search domain from /etc/resolv.conf as domain name - Version 7.1 can now also handle entries in domain names that have a trailing dot. Finally, support for delivery status notifications (DSN, RFC 3461) has been made available in before-queue filtering mode and improved for after-queue filtering.
• Improved web interface: The configuration of LDAP backends via GUI has been improved. Changes can now be applied without specifying a password. Furthermore, the APT repository configuration, which was restricted to 'root', is now visible and editable by all users with 'Administrator' privileges. Some translations have been updated including Arabic, Basque, Brazilian Portuguese, French, German, Simplified Chinese, Traditional Chinese, and Turkish.
• Multi-Factor Authentication for the GUI: Multiple second factors can now be configured for a single account. Web Authentication (WebAuthn), the general standard for authentication, one-time recovery keys and Time-based OATH (TOTP) are all available as second factors.

Availability

Proxmox Mail Gateway is released under the GNU Affero GPL, v3. The downloadable ISO image can be installed on bare-metal or a VM. The ISO contains an installation wizard that automatically installs and configures all the necessary components on the host. This eliminates the need for manual configuration later. The ISO contains the complete feature-set and can be downloaded at https://www.proxmox.com/downloads

Additionally, you can install Proxmox Mail Gateway as a container appliance inside Proxmox Virtual Environment.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, as well as technical support. Subscription prices start at EUR 139 per host, per year, for unlimited users and domains. The Enterprise Repository provides regular updates via the web interface, and is recommended for production use.

Forum Announcement
https://forum.proxmox.com/threads/proxmox-mail-gateway-7-1-available.100637

About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution, protecting your mail server against all email threats from the moment they emerge. Organizations of any size can easily deploy and implement the comprehensive anti-spam and anti-virus platform in just a few minutes. Deploying the full featured mail proxy between the firewall and an internal mail server allows you to control all incoming and outgoing email traffic from the central, web-based interface. Proxmox filters all email traffic at the gateway before it reaches the mail server, protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – November 23, 2021 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has today announced version 2.1 of its open-source server backup solution. Proxmox Backup Server is based on Debian 11.1 “Bullseye”, but using the newer Linux kernel 5.13, and including OpenZFS 2.1. The whole software stack is written in Rust – a modern, fast, and memory-efficient language. The enterprise backup solution, capable of backing up and restoring VMs, containers, and physical hosts, supports incremental, fully deduplicated backups, significantly reducing network load, required storage space and, as a result, total cost of infrastructure.

What's new in Proxmox Backup Server 2.1

Improvements in Backup Management:

• This version includes support for setting flexible traffic-control bandwidth limits. It enables the limiting of incoming (for example, backup) and outgoing (for example, restore) traffic from a set of networks. Users can now configure traffic control rules and set the limits to only apply during specific time-frames.
• Protected backups: Backups can now be marked as “protected”, which will prevent them from being pruned or manually removed, without first removing the protected flag.
• ‘group-filter’ for sync jobs and tape-backup jobs: For each backup job, multiple, cumulative filters can be applied: Users can specify if they want to process only a specific backup type (ct, vm, host), a specific group, or a regex that matches the group-ID for such a job.

Improved Round-Robin Database (RRD): The RRD system has been optimized. It allows for storing and displaying time-series data. A much higher resolution in the dashboard is now possible with the following intervals; per-day: 1 min / per-month: 30 min / per-year: 6h / per-decade: 1 week. In total, data can be retained for 10 years. The database uses a journal, in order to avoid data loss.

Improved Support for OpenID Connect (OIDC): This version brings improved support for the open protocol standard OpenID Connect, which provides Single Sign-On (SSO). The improved OIDC integration in Proxmox Backup Server supports configuring an arbitrary username claim. The requested scopes for user information requests can now also be set, however, the default settings remain the same (‘profile’ and ‘email’). The prompt behavior, which was previously hard-coded to ‘login’, is now unset and can be configured to the variants defined in the OIDC specification or an arbitrary extension.

Enhancements to the Web Interface:

• A new traffic-control management panel is available in the GUI;
• Load and usage graphs have much higher resolution;
• For tape backup jobs, the next tape media label is now displayed;
• Improved translations for Arabic, Basque, Brazilian Portuguese, French, German, Simplified Chinese, Traditional Chinese, Turkish.

Enhancements in the Backend: A new debugging tool, proxmox-backup-debug, has been added, which can be used to inspect Proxmox Backup datastore files, verify the integrity of chunks, and in some cases, recover data.

Availability

Proxmox Backup Server is free and open-source software, published under the GNU AGPL, v3. The downloadable ISO image can be installed on bare-metal. The centrally managed software stack can be quickly installed using the installation wizard. Proxmox Backup Server 2.1 is now available for download at https://www.proxmox.com/downloads

Distribution upgrades from older versions of Proxmox Backup Server are possible via APT. It is also possible to install Proxmox Backup Server on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 449 per server, including unlimited backup storage and unlimited backup-clients.

Forum Announcement
https://forum.proxmox.com/threads/proxmox-backup-server-2-1-released.100240

About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful, yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

VIENNA, Austria – November 17, 2021 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has released version 7.1 of its server virtualization management platform, Proxmox Virtual Environment today. The new version is based on Debian Bullseye 11.1, but using a newer Linux kernel 5.13, and includes updates to the latest versions of leading open-source technologies for virtual environments, such as QEMU 6.1, LXC 4.0, Ceph Pacific 16.2.6, and ZFS 2.1.

Proxmox Virtual Environment 7.1 comes with several new features: support for Windows 11 including TPM, enhanced creation wizard for VM/container, ability to set backup retention policies per backup job in the GUI, a new scheduler daemon supporting more flexible schedules, many improvements for management tasks in the web interface, and notable bug fixes.

What’s new in Proxmox Virtual Environment 7.1

• Set backup retention per backup job via GUI: This allows users to set up smart backup policies for each backup job not only from the API and CLI, but also from the web interface.
• Advanced scheduling options for backup jobs: Backup jobs in Proxmox VE are now run by a new scheduler daemon, called pvescheduler, which supports more flexible schedule options. This is already known from the verify and garbage collection jobs in Proxmox Backup Server (which in turn are inspired by systemd-timers). Additionally, backups can be marked as protected, which will prevent them from being pruned or manually removed, without first removing the protected flag.
• For virtual machines, this version includes support for adding the Trusted Platform Module (TPM) 2.0 to any VM. Among other things, this allows users to install and run Windows 11. A TPM can be added easily via a checkbox in the web interface. Additionally, the UEFI secure boot functionality is now built in and enabled in the underlying QEMU package; the updated installation wizard allows you to select TPM v2.0 and UEFI. Newly created VMs have support for secure boot verification, with an option to have Linux distribution and Microsoft keys pre-enrolled.
• Containers in Proxmox VE 7.1 now support Fedora 35 and Ubuntu 21.10 as well as AlmaLinux and Rocky Linux distributions, including templates. Container templates can be compressed with the open-source, lossless compression algorithm Zstandard (Zstd). For new, unprivileged containers created via the web interface, the nesting feature is enabled by default. This ensures better interoperability with modern systemd versions used in newer templates.
• Two-factor authentication (TFA) has been further improved. To improve access control, multiple 2nd factors can be configured for a single account. WebAuthn (superseding U2F) and one-time recovery keys have been added. This can all be configured from the web interface.

Other notable enhancements

• Creating virtual guests with multiple disks has been simplified. Additional disks can now be added from the creation wizard, eliminating the need to add them after creating the VM or container.
• SCSI and Virtio VM disks can be marked read-only.
• Ceph: Multiple CephFS instances are supported in Proxmox VE 7.1. The configuration of external Ceph clusters via API is now fully supported.

Availability

Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3. The downloadable ISO image can be installed on bare-metal. Proxmox VE 7.1 is available for download at https://www.proxmox.com/downloads

The virtualization platform from Proxmox comes stocked with all the essential management tools, as well as an easy-to-use, web-based user interface. This allows for simple, out-of-the-box management of the host, either through the command line or a standard web browser.

Distribution upgrades from older versions of Proxmox VE are possible via APT. It’s also possible to install Proxmox VE 7.1 on top of Debian Bullseye.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to an Enterprise Repository, with regular updates via the web interface, as well as technical support directly from the developers. Prices start at EUR 90 per year and CPU.

Forum Announcement
https://forum.proxmox.com/threads/proxmox-ve-7-1-released.99847

Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 500,000 hosts. The virtualization platform has been translated into over 26 languages. More than 65,000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers rely on an enterprise support subscription from Proxmox Server Solutions GmbH.

About Proxmox Virtual Environment
Proxmox Virtual Environment (Proxmox VE) is the leading open-source platform for all-inclusive enterprise virtualization. With the central web interface, you can easily run VMs and containers, manage software-defined storage and networking functionality, high-availability clustering, and multiple integrated out-of-the-box tools like backup/restore, live migration, replication, and the firewall. Enterprises use the powerful yet easy-to-manage, all-in-one solution to meet the core requirements of today’s modern data centers. Proxmox VE allows them to remain adaptable for future growth, thanks to its flexible, modular and open architecture.

About Proxmox Server Solutions
Proxmox is a provider of powerful, yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – August 10, 2021 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has informed that Maurer IT Systemlösungen KG has been merged into the Proxmox company, with immediate effect. For clients that are registered in the Proxmox Online Shop (formerly run by the Proxmox Master Distributor “Maurer IT Systemlösungen KG”), all existing contractual relationships between them and Maurer IT Systemlösungen KG will be taken over in full by Proxmox Server Solutions GmbH, including all rights and obligations. No action from the client's side is required, other than updating their company records. Existing login credentials for the Proxmox Online Shop remain unchanged, as do the shop's domains and email contact details.

About Proxmox Server Solutions
Proxmox is a provider of powerful, yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – July 15, 2021 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") today released the next major version 7.0 of Proxmox Mail Gateway, its open-source email security solution. The Mail Gateway is a complete operating system based on Debian 11 “Bullseye”, but using the newer Linux kernel 5.11. Proxmox ships the latest upstream release of Apache SpamAssassin 3.4.6, with an updated rule set; PostgreSQL 13 is also included.

The anti-spam and anti-virus filtering solution, available since 2005, functions as a full-featured mail proxy, that is deployed between the firewall and the internal mail server. It protects organizations against threats, such as spam, viruses, Trojans, and phishing emails. As one of the few open-source enterprise email filtering solutions available, Proxmox Mail Gateway continually provides updates to current versions of its underlying Linux distribution, helping companies to stay safe and up-to-date in a security sensitive domain.

What’s new in Proxmox Mail Gateway 7.0

• This release brings improvements to the web-based user interface, including a more detailed dashboard status panel, that provides a faster system overview to the administrators. It is now possible to manage the APT repositories via the GUI with a new panel in the ‘Administration’ tab. The new ’Repositories’ panel shows an in-depth status report, as well as a list of all configured repositories, and allows users to enable or disable a repository
• The ACME/Let's encrypt now supports using wildcard domains with the DNS plugins.
• API: For improved security, the API proxy daemon can now be restricted to listening on one particular IP through the LISTEN_IP parameter. This enables secure configurations, for example, making it accessible on localhost and accessing it through a VPN only, or preventing it from listening on IPv6, by simply configuring the IPv4 wildcard as LISTEN_IP.
• Improved Proxmox Installer: The Proxmox installer environment now has improved ISO detection, and can automatically detect HiDPI screens and increase console font and GUI scaling accordingly.

Availability

Proxmox Mail Gateway is released under the GNU Affero GPL, v3 and is available as an ISO, which can be installed on bare metal, or a VM. The ISO contains an installation wizard that automatically installs and configures all the necessary components on the host. This eliminates the need for manual configuration later. The ISO contains the complete feature-set and can be downloaded at https://www.proxmox.com/downloads

Upgrade from Proxmox Mail Gateway 6.x to 7.0: A detailed step-by-step upgrade guide is available at https://pmg.proxmox.com/wiki/index.php/Upgrade_from_6.x_to_7.0

Additionally, you can install Proxmox Mail Gateway as a container appliance inside Proxmox VE.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, as well as technical support. Subscription prices start at EUR 139 per host, per year, for unlimited users and domains. The Enterprise Repository provides regular updates via the web interface, and is recommended for production use.

About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution, protecting your mail server against all email threats from the moment they emerge. Organizations of any size can easily deploy and implement the comprehensive anti-spam and anti-virus platform in just a few minutes. Deploying the full-featured mail proxy between the firewall and an internal mail server allows you to control all incoming and outgoing email traffic from the central, web-based interface. Proxmox Mail Gateway filters all email traffic at the gateway, before it reaches the mail server, protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful, yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – July 13, 2021 – Enterprise software developer Proxmox Server Solutions GmbH (henceforth "Proxmox") has today announced the next major version 2.0 of its new open-source server backup solution. This version is based on Debian 11 “Bullseye”, but using the newer Linux kernel 5.11, and including OpenZFS 2.0. The whole software stack is written in Rust – a modern, fast, and memory-efficient language.

Proxmox Backup Server is an enterprise backup solution, capable of backing up and restoring VMs, containers, and physical hosts. By supporting incremental, fully deduplicated backups, the open-source backup solution significantly reduces network load, required storage space and, as a result, total cost of infrastructure. With the integrated web interface, users can easily manage and monitor all backup tasks from a single pane of glass and quickly recover single files, archives, and entire VMs in case of a disaster.

What's new in Proxmox Backup Server 2.0

• Proxmox Tape Backup: Proxmox tape backup, which was released as a technology preview in Proxmox Backup Server 1.1, is now stable, providing an easy way to copy datastore content to tapes. Digital magnetic tape makes sense in any effective enterprise backup plan, especially for archiving large amounts of data. Proxmox Backup Server supports Linear Tape-Open generation 5 (LTO-5) or later drives (with best-effort support for LTO-4), including support for hardware encryption. The user space tape driver and support for autoloaders (pmtx) are also written in Rust.
• Support for the open protocol standard OpenID Connect, providing Single Sign-On (SSO). It is possible to integrate external authorization servers, either using existing public services or your own identity and access management solution, for example, Keycloak or LemonLDAP::NG.
• HTTP Proxy: Support for setting a HTTP Proxy for package updates and subscription check requests has been added.
• Full integration of Let's Encrypt/ACME in the back and front end, with stand-alone and DNS plugins available. This enables administrators to easily create and deploy valid and trusted certificates for their domains with the Let's Encrypt certificate authority.
• Management of APT repositories via GUI: The new 'Repositories' panel shows an in-depth status report, as well as a list of all configured repositories. The new panel provides an overview of all package repository configurations, warns about potential misconfigurations, and allows users to enable and disable a repository.
• Update of the ExtJS JavaScript framework to the latest GPL release 7.0.
• Improved Proxmox Installer: The Proxmox installer now has improved ISO detection, and can automatically detect HiDPI screens and increase console font and GUI scaling accordingly.
• Single file-restore support for VMs that use ZFS or LVM internally. The unified, single-file restore has been extended to support restoring files from LVM(-thin) volumes and ZFS zpools that are contained within a VM archive. This functionality is accessible from the Proxmox VE GUI.

Availability

Proxmox Backup Server is free and open-source software, published under the GNU Affero General Public License, v3. The downloadable ISO image can be installed on bare-metal. Proxmox Backup Server 2.0 is now available for download at https://www.proxmox.com/downloads

Proxmox Backup Server 2.0 is based on a new major version of Debian GNU/Linux; distribution upgrades from older versions of Proxmox Backup Server are possible via APT (see https://pbs.proxmox.com/wiki/index.php/Upgrade_from_1.1_to_2.x). It is also possible to install Proxmox Backup Server on top of Debian.

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 449 per server, including unlimited backup storage and unlimited backup-clients.

Forum Announcement
https://forum.proxmox.com/threads/proxmox-backup-server-2-0-released.92509/

About Proxmox Backup Server
Proxmox Backup Server is an enterprise backup solution for backing up and restoring virtual machines, containers, and physical hosts. The open-source client-server software supports incremental backups, deduplication, Zstandard compression, and authenticated encryption. To increase productivity, the easy-to-use Proxmox Backup Server allows you to back up your data in a space-efficient manner, restore VMs, archives or single objects in a flash. With the web-based user interface, you can effectively reduce work hours thanks to simplified management. Proxmox Backup Server is licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions
Proxmox is a provider of powerful, yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

VIENNA, Austria – July 6, 2021 – Enterprise software developer Proxmox Server Solutions GmbH (or "Proxmox")  today announced the stable version 7.0 of its server virtualization management platform Proxmox Virtual Environment. This major release is based on Debian 11 “Bullseye” but using a Linux kernel 5.11, and includes QEMU 6.0, LXC 4.0, and OpenZFS 2.0.4.

“The release of Proxmox VE 7.0 this time comes ahead of the stable release of Debian Bullseye. Although almost all packages were ready, the Debian project team postponed the release originally planned for May, due to an unresolved issue in the Debian installer. Since we maintain our own Proxmox installer, and are not affected by this particular issue, we decided to release despite the delay of Debian. The core packages of Proxmox VE are either already subject to the very strict Debian freeze policy for essential packages (for example, libc or compiler) or are maintained by our Proxmox developers (for example, QEMU, Kernel, Ceph, LXC, Rust compiler).”

What’s new in Proxmox Virtual Environment 7.0

This major release brings a large set of new enhancements:

• Ceph Pacific 16.2: Proxmox Virtual Environment fully integrates Ceph, giving you the ability to run and manage Ceph storage directly from any of your cluster nodes. This enables users to setup and manage a hyper-converged infrastructure. Ceph Pacific 16.2 is now the default in Proxmox VE, while Ceph Octopus 15.2 remains available with continued support.
  • Beginning with Ceph Pacific 16.2, the balancer-module is enabled by default for new clusters. This will lead to better distribution of placement groups among the OSDs, and help to balance the data more evenly across OSDs reducing the chances that a single OSD is disproportionately full, resulting in less available space than expected in the cluster.
  • Ceph monitors with multiple public networks can be created using the CLI, should users have multiple configured links.
• Btrfs Storage Technology: The copy-on-write (COW) file system, natively supported by the Linux kernel, implements features such as snapshots, built-in RAID, and self-healing via checksumming for data and metadata. It allows taking subvolume snapshots and supports offline storage migration while keeping snapshots. For users of enterprise storage systems, Btrfs provides file system integrity after unexpected power loss, helps prevent bitrot, and is designed for high-capacity and high-performance storage servers.
• New Panel for easy management of APT repositories via GUI: The Proxmox developers have added a new 'Repositories' panel to the web interface which allows to inspect a node's configured APT repositories. The new panel provides a single place to see all package repository configuration, which usually is scattered across multiple files, and warns about potential misconfiguration. Users can enable and disable repositories as needed, and add the standard repositories provided by Proxmox. For instance, it’s possible to test a new Ceph release which is not yet available in the main repository. The Ceph test repository, provided by Proxmox can simply be enabled (or added), the new version tested, and then disabled again when it’s not longer needed.
• Access Control: The new open protocol standard OpenID Connect provides Single Sign-On (SSO) resulting in a seamless user experience. Administrators can integrate an external authorization server, by either using existing public services or their own identity and access management solution. Also, a newly added permission ‘Pool.Audit’ allows users to see pools, but not to change them.
• Enhancements to the web-based user interface (GUI):
  • Markdown in "Notes" -The “Notes” panels for Guest and Node can now interpret Markdown and render it as HTML. This gives administrators a better visualization of their notes.
  • Pruning on manually triggered backups: Users can prune the target storage with its backup-retention parameters when starting a manual backup.
  • Support for security keys (like YubiKey) as SSH keys, when creating containers or preparing cloud-init images.
• QEMU 6.0: The latest QEMU version with new functionalities is included in Proxmox VE 7. This includes support for the Linux IO interface ‘io_uring’. The asynchronous I/O engine for virtual drives will be applied to all newly launched or migrated guest systems by default. Also a clean-up option for unreferenced VM disks is available. Disks, which are not present in the configuration, don't get automatically destroyed anymore. It is now opt-in in the API and with CLI tools (in the GUI it is present since Proxmox VE 6.4). If this clean-up option is enabled, only storage with content-types of VM or CT disk images, or rootdir will be scanned for unused disk-volumes, helping to prevent accidental data loss.
• Container: LXC 4.0 has full support for cgroups v2, a mechanism for hierarchical organization of processes and allocation of system resources. A pure cgroup v2 layout is the default for Promox VE 7.0.
• Proxmox VE Installer: The installer environment has been reworked and now uses switch_root instead of chroot, when transitioning from initrd to the actual installer. This improves module and firmware loading, and slightly reduces memory usage during installation. The installer now automatically detects HiDPI screens, and increases the console font and GUI scaling accordingly. This improves the UX for workstations with Proxmox VE (for example, for pass-through). The ISO detection has been improved as well to work more reliably with slower storages. The new installer uses zstd compression for the initrd image and the squashfs images.

Other notable enhancements

• Certificate management: The ACME standalone plugin now has improved support for dual-stacked (IPv4 and IPv6) environments and no longer relies on the configured addresses to determine its listening interface.
• Network: The modern ifupdown2 is the default network management tool for new installations using the Proxmox VE official ISO. The legacy ifupdown is still supported in Proxmox VE 7.
• Time Synchronization: New installations will install chrony as the default NTP daemon, because the design limitations of systemd-timesync make it problematic for server use. Users upgrading from a system using systemd-timesyncd, should manually install either chrony, ntp or openntpd.

Availability

Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3. The downloadable ISO image for Proxmox VE version 7.0 can be installed on bare-metal and is available at https://www.proxmox.com/downloads

The virtualization platform from Proxmox comes stocked with all the essential management tools, as well as an easy-to-use, web-based user interface. This allows for simple, out-of-the-box management of the host, either through the command line or a standard web browser.

Checklist tool ‘pve6to7’: Users can check their installation before, during, and after the upgrade process with the checklist tool ‘pve6to7’. It is included in the latest Proxmox VE 6.4 packages and provides hints and warnings about potential issues to clear up before upgrading. See https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0

Distribution upgrades from older versions of Proxmox VE or from a beta version of Proxmox VE 7.0 are possible with apt. It is also possible to install Proxmox VE 7.0 on top of Debian 11 “Bullseye”.

Ceph cluster upgrade: Upgrading Proxmox VE from version 6.4 to 7.0 first is necessary. Afterwards upgrading Ceph from Octopus to Pacific. For the detailed upgrade guides please see https://pve.proxmox.com/wiki/Ceph_Octopus_to_Pacific

For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to an Enterprise Repository, with regular updates via the web interface, as well as technical support directly from the developers. Prices start at EUR 90 per year and CPU.

Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 450,000 hosts. The virtualization platform has been translated into over 26 languages. More than 65,000 active community members in the support forum engage with and help each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on latest open-source technologies. Tens of thousands of customers rely on a enterprise support subscription from Proxmox Server Solutions GmbH.

About Proxmox Virtual Environment
Proxmox Virtual Environment (Proxmox VE) is the leading open-source platform for all-inclusive enterprise virtualization. With the central web interface, you can easily run VMs and containers, manage software-defined storage and networking functionality, high-availability clustering, and multiple integrated out-of-the-box tools like backup/restore, live migration, replication, and the firewall. Enterprises use the powerful yet easy-to-manage, all-in-one solution to meet the core requirements of today’s modern data centers. Proxmox VE allows them to remain adaptable for future growth, thanks to its flexible, modular and open architecture.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training services to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria. To learn more visit https://www.proxmox.com

Contact: Daniela Häsler, Proxmox Server Solutions GmbH

VIENNA, Austria – April 28, 2021 – Enterprise software developer Proxmox Server Solutions GmbH (or "Proxmox") has today released version 6.4 of its server virtualization management platform Proxmox Virtual Environment. This latest version comes with important new features such as live-restore and single file restore, support for Ceph Octopus 15.2.11 and Ceph Nautilus 14.2.20, many enhancements to KVM/QEMU, and notable bug fixes. The usability of Proxmox VE has improved significantly with the addition of many features and management options to the web interface.

The new version is based on Debian Buster 10.9, but using a newer, long-term supported Linux kernel 5.4. Optionally, the 5.11 kernel can be installed, providing support for the latest hardware. The 5.4 kernel remains the default on Proxmox VE 6.x series. The latest versions of leading open-source technologies for virtualization like QEMU 5.2, LXC 4.0, and OpenZFS 2.0.4 have been included. The Proxmox maintainers support two versions of Ceph, the massively scalable, distributed storage system, in their virtualization platform. During the installation process, users can select their preferred version, either Ceph Octopus 15.2.11 or Ceph Nautilus 14.2.20.

Single-File Restore and Live Restore for KVM

Proxmox Virtual Environment 6.4 brings Live Restore and Single File Restore enabling users to simplify restore tasks and further improve recovery time objectives (RTO).

• Single-File Restore: Quite often, users only need to recover a single file. This feature is now available for virtual machine and container backup archives stored on a Proxmox Backup Server, meaning an individual file or directory can be selected for restore, without having to download the entire archive. To restore a file via the Proxmox VE web interface, users can open a file browser directly via the 'File Restore' button. A 'Download' button then allows the user to download files and directories, the latter being compressed into a zip archive on the fly. In case users want to download a VM image, which might contain untrusted data, Proxmox VE starts a temporary VM to download the data from it. This avoids exposing the hypervisor system to danger.
• Live Restore: The new live restore feature can be enabled via the GUI or through the command ‘qmrestore’. The restore of a selected VM starts immediately after activation. This feature currently works for all VMs saved on a Proxmox Backup Server storage. It is especially useful for large VMs, for example, a web server, where only a small amount of data is required for the initial operation. The VM becomes operational as soon as the operating system and all necessary services have been started, while – in the background – the lesser used data is continuously restored.

Support for Ceph Octopus 15.2.11 and Ceph Nautilus 14.2.20

Proxmox Virtual Environment supports two versions of the massively scalable, distributed storage system Ceph. Users can select their preferred Ceph version-- Ceph Octopus 15.2.11 or Ceph Nautilus 14.2.20--during the installation process. The integration of the placement group (PG) auto-scaler has improved in version 6.4. This allows administrators to configure Target Size or Target Ratio settings and see the optimal numbers of PGs in the GUI. For easier usage, the Ceph pool view has been optimized, making it possible to show the columns related to the auto-scaler, as well as to configure the major pool properties from the web interface.

Further enhancements

• Proxmox VE API Proxy Daemon: pveproxy listens to both IPv4 and IPv6 addresses by default. The Listening IP addresses are configurable in /etc/default/pveproxy. This can help to limit the exposure to the outside, e.g., by only binding to an internal IP.
• Container: Appliance templates or support for Alpine Linux 3.13, Devuan 3, Fedora 34, and Ubuntu 21.04. Improved handling of cgroup v2 (control group).
• External metric server: In Proxmox VE, you can define external metric servers, providing you with various statistics about your hosts, virtual guests, and storages. The new version supports InfluxDB HTTPs API and instances of InfluxDB behind a reverse proxy.
• Improved ISO installer: The boot setup for ZFS installations is now better equipped for legacy hardware. Installations on ZFS now install the boot-loader to all selected disks, instead of only to the first mirror vdev, improving the experience with hardware where the boot-device is not easily selectable. Before installation, an NTP synchronization is attempted.
• Storage: Proxmox VE 6.4 now allows for adding backup notes on any CephFS, CIFS, or NFS storage. Users can also configure a namespace for accessing a Ceph pool.
• VMs (KVM/QEMU):
  • Support pinning a VM to a specific QEMU machine version.
  • Automatically pin VMs with Windows as OS type to the current QEMU machine on VM creation. This improves stability and guarantees that the hardware layout stays the same, even with newer QEMU versions.
  • cloud-init: re-add Stateless Address Autoconfiguration (SLAAC) option to IPv6 configuration.
• Enhancements to the GUI
  • Show current usage of host memory and CPU resources by each guest in the node search-view.
  • Use binary (1 KiB equals 1024 B instead of 1 KB equals 1000 B) as base in the node and guest memory usage graphs, ensuring it is consistent with the current usage gauge.
  • Firewall rules: Columns are more responsive and flexible by default.

Notable bugfixes

• Container restores now default to the privilege setting from the backup archive.
• ZFS: Checking if a pool is mounted (in addition to imported) and trying to mount it, improves robustness for ZFS on slower disks.
• Address issues with hanging qmp commands, causing VMs to freeze

Availability

Proxmox Virtual Environment is free and open-source software, published under the GNU Affero General Public License, v3. The downloadable ISO image can be installed on bare-metal. Proxmox VE 6.4 is available for download at https://www.proxmox.com/downloads.

The virtualization platform from Proxmox comes stocked with all the essential management tools, as well as an easy-to-use, web-based user interface. This allows for simple, out-of-the-box management of the host, either through the command line or a standard web browser. Distribution upgrades from older versions of Proxmox VE are possible with apt. It’s also possible to install Proxmox VE 6.4 on top of Debian Buster. For enterprise users, Proxmox Server Solutions GmbH offers a subscription-based support model, which provides access to the extensively tested Enterprise Repository, with regular updates via the web interface, as well as technical support on a subscription basis. Prices start at EUR 90 per year and CPU.

Facts
The open-source project Proxmox VE has a huge worldwide user base with more than 450,000 hosts. The virtualization platform has been translated into over 26 languages. More than 65,000 active community members in the support forum engage with each other. By using Proxmox VE as an alternative to proprietary virtualization management solutions, enterprises are able to centralize and modernize their IT infrastructure, and turn it into a cost-effective and flexible software-defined data center, based on the latest open-source technologies. Tens of thousands of customers from companies regardless of sector, size or industry rely on a Proxmox VE support subscription, a service offered by Proxmox Server Solutions GmbH.

About Proxmox VE
Proxmox Virtual Environment (Proxmox VE) is the leading open-source platform for all-inclusive enterprise virtualization. With the central web interface, you can easily run VMs and containers, manage software-defined storage and networking functionality, high-availability clustering, and multiple integrated out-of-the-box tools like backup/restore, live migration, replication, and the firewall. Enterprises use the powerful yet easy-to-manage, all-in-one solution, Proxmox VE, to meet the core requirements of today’s modern data centers. Proxmox VE allows them to remain adaptable for future growth, thanks to its flexible, modular and open architecture.

About Proxmox Server Solutions
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises, regardless of size, sector or industry use the stable, secure, and scalable Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH