InterLDAP is a middleware for identity management, completed with management tools. It is divided in subprojects, all designed for one objective: manage electronic identities, from their creation, trough their life in organization, until their deletion.
LDAP Account Sync project's goal is to synchronize windows user account information and passwords in a OpenLDAP server. This is not authorization, but rather synchronization of the account information.
This service can be used for single login site