Global Catalog

What is Global Catalog

Global catalog servers store a single, writable domain and a partial, read-only replica of all other domains in the forest. A partial replica means that the global catalog stores all objects, but with a limited set of attributes on each object.

How to know the Global Catalog server?

Check the properties of the NTDS Settings object of the server object in Active Directory Sites and Services to confirm that a domain controller is a global catalog server.

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