Ubuntu ships with vnc4server which is based on RealVNC.
CentOS ships with TigerVNC, which is based on TightVNC which is based on RealVNC.
Does anyone know feature wise what is different between vnc4server and TigerVNC?
The main difference is in the supported RFB protocol version.
I assume (did't check that) that vnc4server will support newer version.