SSH Tunneling

http://www.softwaresecretweapons.com/jspwiki/windowsremotedesktopoverssh
http://theillustratednetwork.mvps.org/Ssh/RemoteDesktopSSH.html

ssh –p home.username@home.ip.address
ssh -R 3390:home.ip.address:3389 -C -N office.username@office.ip.address

This will tunnel all traffic arriving from source office.username@office.ip.address port 3390 to destination home.ip.address port 3389. Now from your computer at the office, use your Remote Desktop client to connect to localhost:3390, this will connect you to the home computer. The Remote Desktop traffic will be tunneled over SSH.

You can also use tunnel function in Putty...