Lets play a game. Here is the logon info for a Ubuntu box I have:
Most of you guys are probably more proficient than me with linux so this may not be much of a challenge but feel free to take it over.
Also the IP goes to a website that expresses permission for you to mess with it and I can rebuild the install if you fuck it up but it is a VPS so if you do any damage outside of that, I don't know what will happen.
Oh yeah, if you don't know much but want to look around anyway, here is some stuff:
SSH Client for Windows: http://goo.gl/rJGuk9
For Android: http://goo.gl/1Fy35D
For Mac: http://goo.gl/M5pgPx
For iOS: http://goo.gl/6w8q1A
And some commands: http://goo.gl/gsN4X2