what is ssh?

[iphoneconfuse]

Hi! I just bought a new iphone. when i got it it has been jailbreak already. I need help with my ssh. Whenever I click on it nothing happens. It just shows a blank white screen and then goes back to the main menu (its that the springboard?)

I also want to add some new sources but i do not know what is the ling for ste packaging and conceited softwares. I do not have them.

please help me . why is my ssh not owrking and how can i make it work?
( i am a Newb )

[psychofreak]

Wikipedia is your friend :) (http://en.wikipedia.org/wiki/Secure_Shell)