How to Enable SSH on your computer for your Mac Mini server
Enabling SSH On Your Mac Server
How To Use Your Mac As A Server.
In this video tutorial, I was you thru how to enable and use ssh on your colocated mac server. It's an easy process, and this is a short tutorial, but it really opens the door for controlling your Mac in a very powerful way.
If you are new to using Terminal, or Unix in general, you might consider keeping an eye on FreeMacUnix.com. Richard has started from the very beginning in his explanations on how to use Unix on your Mac.