VNC/Servers - Community Help Wiki - Ubuntu
https://help.ubuntu.com/community/VNC/ServersEvery VNC server has different strengths and weaknesses and is appropriate for different uses. This page will discuss each of the VNC servers available in Ubuntu, and ways to configure them for most common uses of VNC. Common security options. The most important thing when setting up a VNC server is to only let the right people access your desktop.