I really like the simplicity and power of the Raspberry Pi's SSH server - no messing around with impossible-to-create text files containing the username and some arbitrary hash of the password that's been salted by the IP and only works for certain domains unless you have a certificate... you get the idea. Either way, after attempting to puzzle out OpenSSH for a while on my Ubuntu box, I gave up.
What I'd like to know is, what SSH server does the Pi use, and can I get it on my other boxes? What I'd like to do is have my Pi set up as sort of an access hub to my other computers:
james@FriendComputer~$ ssh firstname.lastname@example.org email@example.com's password: firstname.lastname@example.org~$ ssh email@example.com firstname.lastname@example.org's password: email@example.com~$
..if you look at the above diagram, you'll get an idea of what I'm talking about. Either way, OpenSSH proved to be too much of a bother to deal with, so I want whatever the Pi's got.