\label{Authentication}

People are authenticated with a standard username and password scheme.
LON-CAPA ships with support for LON-CAPA specific passwords, authentication
using the UNIX authentication scheme on the server (assuming that
user has a user account on that system), and Kerberos 4 and 5. It
is easy to add other external authentication types to integrate with
whatever your campus may use, and there are institutions doing this.