Role of the Global Catalog Server? Only on DCs, or member servers too?? Which items are stored there and replicated??

PeeluckyDuckee

Diamond Member
Feb 21, 2001
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I see conflicting definitions of what a GCS does. Is it used for user logon/authentication? Can any member server host a GCS or is it only domain controllers?
What information is stored in the catalog server and replicated?

One of the items I see is stored under the GCS is universal group and group members. What other objects are stored in the GCS as well?

Thx.
Plucky