Using the SPICE display protocol
Like KVM, a Simple Protocol for Independent Computing Environments (SPICE) is one of the best innovations that came into open source virtualization technologies. It propelled the open source virtualization to a large Virtual Desktop Infrastructure (VDI) implementation.
Qumranet originally developed SPICE as a closed source code base in 2007. Red Hat, Inc. acquired Qumranet in 2008, and in December 2009, they decided to release the code under an open source license and treat the protocol as an open standard.
SPICE is the only open source solution available on Linux that gives two-way audio. It has high-quality 2D rendering capabilities that can make use of a client system's video card. SPICE also supports multiple HD monitors, encryption, smart card authentication, compression, and USB passthrough over the network. For a complete list of features, you can visit http://www.spice-space.org/features.html. If you are a developer...