# Prebuilt JAAS Modules

This section provides detailed descriptions of the prebuilt JAAS modules.

Configuration files for these modules are provided in the EMS_HOME/samples/config/jaas directory.

For the LDAP modules, properties added in the JAAS configuration file that do not begin with `tibems` are passed into every LDAP context creation, allowing LDAP-specific parameters to be set in the JAAS configuration file.

Properties that must be set in the environment, such as SSL related properties, are configured through the `jre_option` parameter in the EMS server configuration. However, an SSL key store location can be set using the `tibems.ldap.truststore` parameter for convenience. See the parameter descriptions for each module type for details.

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