groupOfUniqueNames

Represents a set of named objects, like groupOfNames, including information relating to the purpose or maintenance of the set. Object names are not repeated or reassigned within the set.

Use this object class only for group entries. Directory servers cache group entries based on their object class; adding this object class to non-group entries fills the group cache with spurious entries. This hurts overall group-related performance and performance for the non-group entries incorrectly identified as groups.