[Samba] Acronyms: what is PDC and BDC?

Marc Muehlfeld samba at marc-muehlfeld.de
Mon Mar 3 11:19:14 MST 2014

Am 03.03.2014 18:21, schrieb steve:
> So it's interpretation based: PDC on this list may or not mean AD?

PDC in the MS world is an NT4 Primary Domain Controller. And I think we 
should try using the MS terms, so we all are talking about the same things.

>>> the First DC had all FSMO roles.
> Yes, good. First; primary, hence PDC?

The first DC in a forest automatically get all FSMO roles, because all 5 
roles have to exists. But if you add more DCs, you can split the 5 roles 
to different DCs.

Some of the roles exist only once in a forest. Some once in a domain, 
like the PDC emulator role.

Here's a nice explanation of the PDC emulator role:


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