It is actually really simple and well documented.
You have a host You want to connect to, but it is behind a linux (anything that has ssh server running on should do) box.
What You need to run is something like this
ssh -L 3387:192.168.0.10:3389 -l user -N ssh_box
on Your local client machine.
3387 - local port to use
192.168.0.10 - remote server where that service is running You need to connect to
3389 - the TCP port that remote service is running on
user - ssh username of course
ssh_box - ssh server Your service is behind of.
