You can manage user and group information in a LDAP (Lightweight Directory Access Protocol) directory service with the iPlanetTM Directory Server, as well as other LDAP directory servers. Managing user and group information is also available in the NIS, NIS+, or files environment.
For information on setting up LDAP, see System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP).
For information on managing users and groups with iPlanet Directory Server, see iPlanet Directory Server 5.1 Administrator's Guide at this http://docs.sun.com/db/doc/816-2670? location.