The objectclass attribute

The objectclasses attribute lists the object classes supported by the server. Each value of this attribute represents a separate object class definition. Object class definitions can be added, deleted, or modified by appropriate modifications of the objectclasses attribute of the cn=schema entry. Values of the objectclasses attribute have the following grammar, as defined by RFC 2252:

ObjectClassDescription = "(" whsp
        numericoid whsp ; Objectclass identifier
        [ "NAME" qdescrs ]
        [ "DESC" qdstring ]
        [ "OBSOLETE" whsp ]
        [ "SUP" oids ] ; Superior objectclasses
        [ ( "ABSTRACT" / "STRUCTURAL" / "AUXILIARY" ) whsp ] ; default is structural
        [ "MUST" oids ] ; AttributeTypes
        [ "MAY" oids ] ; AttributeTypes
        whsp ")"

For example, the definition of the person objectclass is:

( 2.5.6.6 NAME 'person' DESC 'Defines entries that generically represent people. ' STRUCTURAL SUP top MUST ( cn $ sn ) MAY ( userPassword $ telephoneNumber $ seeAlso $ description ) )

• The OID for this class is 2.5.6.6
• The name is "person"
• It is a structural object class
• It inherits from the object class "top"
• The following attributes are required: cn, sn
• The following attributes are optional: userPassword, telephoneNumber, seeAlso, description

For more information about how to change the object classes supported by the server, see Manage the schema.