Logging in
Always use “secure shell” ssh to connect (works like rlogin but creates encrypted session)
% ssh [-l username] hecate.princeton.edu
Host key not found from the list of known hosts.
Are you sure you want to continue connecting (yes/no)?
(it creates an entry in the file ~/.ssh/known_hosts)
Enter your password as you would normally do
To use ssh-agent with RSA authentication, see:
https://w3.pppl.gov/info/pppl-unix/ssh_with_RSA_authentication.html