x11vnc allows you to connect to real X displays without creating any new X session (fluxbox, twm, gnome etc.). It allows you to control the mouse, keyboard and X events remotely. I usually use it when friends of mine need help and I want to see what exactly they’re doing.

Make sure any **ssh server **is running on remote-hostand you have a vnc client installed on your localhost. Also make sure remote-host has x11vnc otherwise this won’t make sense at all.Then run:

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[remote-host] > x11vnc -display :0
[localhost] > ssh -t -L 5900:localhost:5900 [remote-user]@[remote-host]

Now the whole connection is encrypted via ssh. Now open new terminal and run:

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[localhost] > vncviewer localhost:5900

That’s all!