In the virtualisation world you have the expensive big boy who everyone now hates ESX by Broadcom (was VMware), the expensive wannabe big boy that everyone hates Hyper-V by Microsoft, and a gazillion others that use Qemu or zen as a base and puts a shiny coat of UI over it.
Proxmox is in that last category. A pretty interface over an open source underlay at a decent price (if you want to pay the subscription).
In the virtualisation world you have the expensive big boy who everyone now hates ESX by Broadcom (was VMware), the expensive wannabe big boy that everyone hates Hyper-V by Microsoft, and a gazillion others that use Qemu or zen as a base and puts a shiny coat of UI over it.
Proxmox is in that last category. A pretty interface over an open source underlay at a decent price (if you want to pay the subscription).