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People are authenticated with a standard username and password scheme. LON-CAPA ships with support for the following authentication scheme:

  1. Internally authenticated: LON-CAPA specific passwords, choose this when in doubt.

  2. System authentication: authentication using the UNIX authentication scheme on the server.

  3. Kerberos authenticated: authentication based on either a Kerberos 4 or 5 server.

  4. External authentication: custom authentication integrated with an authentication server other than Kerberos (e.g. LDAP).

If the student or user you are adding to LON-CAPA will be using the same account as another system (e.g. email), then your system administrator can tell you which authentication type you should choose. If you are creating a user that is unique only to LON-CAPA, then select "internally authenticated".