You may receive the following error when using Goverlan Remote Control‘s built in VNC viewer to access an Ubuntu 14 workstation.
no security type suitable for rfb 3.3 supported
Information
To enable remote desktop in Ubuntu when “Settings” no longer shows the icon for “Desktop Sharing” or “Remote Desktop”, type:
$ vino-preferences
When your VNC client fails to connect with an error like “No matching security types” or “No security type suitable for RFB 3.3 supported” (or if you see a logline from vino-server like “Advertising security type 18″) then type:
$ gsettings set org.gnome.Vino require-encryption false
Then try to connect again.