[14] Proxmox is released under the terms of the GNU Affero General Public License, version 3.

It supported container and full virtualization, managed with a web-based user interface similar to other commercial offerings.

[11] It also integrates out-of-the-box-tools for configuring high availability between servers, software-defined storage, networking, and disaster recovery.

[21] Since PVE 8.1 there is a full Software-Defined Network (SDN) stack implemented and is compatible with Secure Boot.

[27] Since version 2.0, Proxmox VE offers a high availability option for clusters based on the Corosync communication stack.

[13] Another HA-related element in PVE is the distributed file system Ceph, which can be used as a shared storage for guest machines.