XenServer

Open Source Virtualization Platform

Screenshots

Hunter's comment

Anybody who are familiar with cloud technology would have come across XenServer .
Core technology that any cloud provider definitely uses nowadays is Virtualization . XenServer provides Full server virtualization that is required and used in Data Centers.
It works directly on h/w unlike the para server virtualization softwares like VirtualBox that we use on our PC.

Link

https://xenserver.org/