The general authentication service must be registered as a service to a realm before any user can log in using the other authentication modules. The core authentication service allows the Access Manager 7 administrator to define default values for a realm's authentication parameters. These values can then be used if no overriding value is defined in the specified authentication module. The default values for the Core Authentication Service are defined in the amAuth.xml file and stored in Directory Server after installation.
For more information, see Chapter 7, Managing Authentication