Sunday, December 18, 2011

What is Global Catlog Server

The Global Catalog server is the domain controller that stores a full copy of all objects in its host domain. It also stores a partial copy of all objects in all other domains within the forest.

The Global Catalog (GC) is an important component in Active Directory because it serves as the central information store of the Active Directory objects located in domains, and forests. Because the GC maintains a list of the Active Directory objects in domains and forests, without actually including all information on the objects; and it is used when users search for Active Directory objects or for specific attributes of an object; the GC improves network performance and provides maximum accessibility to Active Directory objects.

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