You can also check out the manual for the SSH command by typing "man ssh" in the command prompt. That will show you other things that you can do with SSH in Terminal, such as creating an SSH tunnel when connecting to an SSH server to encrypt your sessions, kind of like a "poor man's proxy." Or even to do X11 forwarding so that you can execute X11 applications remotely from your SSH server to your Macintosh. Or even generate encryption keys in order to have an extremely secure SSH session without even needing a password.
Have fun with SSH!
• Apple iMac G5 17" (2 GHz G5) - Mac OS X 10.5.8/Ubuntu 10.04
• Asus Eee PC 901 (1.6 GHz Atom N270) - Fedora 13
• Apple Macintosh Quadra 650 (33 MHz MC68040) - Mac OS 8.1
• "JHVH-1" (2 GHz AMD Athlon XP 2400+) - Slackware 13.1