User stores are LDAP directory servers which are used to authenticate the end users. You must specify an initial user store when creating an Identity Server configuration. You must use the same procedure for setting up the initial user store, adding a user store, or modifying an existing user store.
Identity Server has built-in support to interact with eDirectory, Active Directory, and Sun One Directory. Identity Server also provides a framework to plug in other user stores.
The LDAP Server Plug-In is available in the NetIQ Access Manager Developer Kit. For more information, see NetIQ Access Manager 4.3 Developer Guide.
For all Identity Servers to communicate with the user store over SSL, you need to import the trusted root of the user store into Identity Server's trust store.
For more information, see Configuring Identity User Stores
in the NetIQ Access Manager 4.3 Administration Guide.