============== vnc4server
vnc4server -geometry 1024x768 -depth 24
startkde
gnome-session

vnc4server -kill :1

============== tunnel VNC connections over SSH
ssh -L 590X:127.0.0.1:590X -N -f -l username servername
----- VNC client
connect to "127.0.0.1:590X"

============== xvnc4viewer