M.I.T = Multimedia IT dept.

1) create your own key and passphrase.
$ ssh-keygen -t dsa

2) put the id_dsa.pub into the .ssh/ of your REMOTE home directory.
$ mv id_dsa.pub authorized_keys

3) Modify sshd_config to deny password authentication & restart sshd
# Change to no to disable tunnelled clear text passwords
PasswordAuthentication no

4) Everything's DONE