Virtual Machines A virtual machine is exactly as what is described, it's a virtual computer held within a physical computer.  It is completely separate from the physical computers operations and uses a hypervisor to manage it's CPU and RAM resources. It's very secure as in information is not shared outside of the virtual machine.  If a machine has to share resources or has it's own independent requirements a virtual machine is always the best choice. We have the following Virtual Machine Instances ClearOS (Router and VPN System) FreePBX (VOIP System) Zimbra (Email System) OpenMediaVault (Data Management System)