virt-viewer (lightweight graphical display for libvirt VMs) The "Virtual Machine Viewer" application (virt-viewer for short) is a lightweight interface for interacting with the graphical display of a libvirt guest OS. It is intended as a replacement for the traditional vncviewer client, since the latter does not support SSL/TLS encryption of x509 certificate authentication. Optional dependencies are spice and libvirt. If built without libvirt (>= 0.9.7), this package will only contain the remote-viewer client, a simple VNC/SPICE viewer.