LDAP概論
LDAPの実装

iPlanet Directory Server
http://www.iplanet.com/products/infrastructure/dir_security/dir_srvr/index.html

Netscape Directory Server
http://www.netscape.com/directory/v4.0/index.html

OpenLDAP
http://www.openldap.org/
        OpenLDAP 1.2.x - stable
        OpenLDAP 2.0.x - release