AFS kpasswd command

To change your Kerberos password (also known as your AFS password), use the kpasswd command. You will be prompted once for your old AFS password and then twice for your new password. Remember that on most PSC machines, your login password is your AFS password, and kpasswd is the only command you use to change your password.

You can also change your AFS password via a web form at http://www.psc.edu/private/htbin/passwd/setpw.cgi.