As Michaelk said, we need more information to fully help you. Things like the form below would help greatly.
So for example Ubuntu 13.04,
Now, as you're wondering how to get a remote terminal, I'm going to give you the two options; 1, SSH and 2, local terminal.
To use SSH, you must download a SSH server for example OpenSSH
and tinker with it a bit, port forward, etc. then login with Putty or some sort of terminal on another machine.
For a local terminal, hold Ctrl + Alt then press T.