quick ssh-keys intro
ever get tired of passwords? one of the areas where you can avoid re-entering password is with ssh logins. if you have a couple of boxes or even shells, then this will come in handy.
make a pair of keys.
$ mkdir ~/.ssh; ssh-keygen -d
copy your public key (~/.ssh/id_dsa.pub) to your authorized keys file (~/.ssh/authorized_keys) [...]

