Overview#

Linked Attribute are attributes that allows a Relationship to be built between ObjectClassesLinked Attributes The most examples is the Microsoft Active Directory Group to User Member-MemberOf Relationship

Groups have members which is the Forward links, as they are the primary direction of the Relationship. The User-MemberOf is referred to as a BackLink.

Linked Attribute EDirectory#

EDirectory Linked Attribute which are of DN Syntax exhibit Referential Integrity

Microsoft Active Directory AttributeSchema#

Microsoft Active Directory schema attribute classes declare what type of information this attribute stores (which will always be some derivative of a DistinguishedName (DN)Forward links (or Forward Reference) attributes always have a LinkID even value and for every Forward link the next LinkID value is, of course, an odd value and is the LinkID to the corresponding BackLink attribute.

More Information#

There might be more information for this subject on one of the following:

• Active Directory Schema Related LDAP Searches
• DN Syntax
• DirectReports
• Forward Reference
• Forward link
• LDAP Dereference Control
• LinkID
• Maximum Database Record Size
• Microsoft Active Directory Anomalies

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• [#1] - Links and Backlinks in Active Directory for Exchange - based on information obtained 2018-09-27-
• [#2] - Linked Attributes (AD DS) - based on information obtained 2020-01-02
• [#2] - Allow Linked Multi-Valued Attributes to use LVR - based on information obtained 2020-02-25