Firstly, You will need to edit the SSH daemon configuration file to enable this like so..
vi /etc/ssh/sshd_config
ChallengeResponseAuthentication no PasswordAuthentication no UsePAM no PermitRootLogin yes
Restart SSH daemon
/etc/rc.d/sshd restart
ssh
Sending ssh connection with Applescript and Terminal.app
tell application "Terminal" activate do script "ssh -2 [email protected]" -- // write user's password -- // write some linux commands to remote server end tell