Red Hat Enterprise Virtualization (RHEV), an enterprise virtualization product produced by Red Hat,based on the KVM hypervisor. Red Hat Enterprise Virtualization uses SPICE protocol and VDSM (Virtual Desktop Server Manager) with a RHEL-based centralized management server. It can acquire user and group information from an Active Directory service or FreeIPA Active Directory emulator.Some of the technologies of Red Hat Enterprise Virtualization came from Red Hat's acquisition of Qumranet.