Setup an ssh-public key?

First

# ssh-keygen -t dsa

on your computer. Then

# scp .ssh/id_dsa.pub remotecomputerip:".ssh/"

Then on the remote computer:

# mv .ssh/authorized_keys2 .ssh/authorized_keys

# cat .ssh/authorized_keys .ssh/id_dsa.pub >.ssh/authorized_keys

and you should be done.