Global Catalog is a domain controller that can be used to efficiently query the entire directory forest request., The first domain control in the directory forest automatically becomes a Global Catalog server, or you can configure any DC in the other directory forest as an additional Global Catalog server to balance the data traffic of login identity authentication requests.
- Global catalogs make cross-origin resource searches transparent to users
- Partial attributes of objects in all fields in the entire directory
- The members of the Architecture administrator can decide which attributes can be stored in the Global Catalog as needed.
Global catalogs include:
- Frequently Used attributes during Query
- Necessary information for determining Object Location
- Default partial attributes of an object
- Access Permissions for objects and their attributes
Global Catalog function:
- Searches for any location in the directory, no matter where
- Determine the general user group membership
- Determine the user's domain
