[windows2000] Re: PDC Emulator
- From: "Chris Berry" <compjma@xxxxxxxxxxx>
- To: windows2000@xxxxxxxxxxxxx
- Date: Thu, 21 Nov 2002 17:40:42 -0800
>From: "Rod Falanga" <rjfalanga@xxxxxxxxxxxxxx>
>OK, so I'm asking what for most of you is a simple question. In class,
>the instructor has mentioned several times something called a "PDC
>Emulator". I know, from NT domains, that "PDC" stands for "Primary
>Domain Controller". From this class I'm getting the distinct feeling
>that in a Windows 2000 Active Directory network, in native mode, that
>there isn't a primary domain controller.
>So, what is the "PDC Emulator"?
Ok, its not too complicated, basically in windows 2000 there is no PDC and
BDC, only Domain Contollers all of which are equal. Now that said, there
are a few master services such as the globabl catalog server that are
created on the first DC in your domain, but you can move them around, they
aren't tied to one particular machine. In essence however all Domain
Controllers in win2k are equal, however to maintain backwards compatibility
with NT4.0 (which requires a PDC be present) win2k has a PDC emulator that
pretends to be the PDC for NT machines. In this way you can use win2k and
NT4.0 in what is called a "Mixed" environment, some of the features of win2k
are not available except in "Native" mode but you can't use native mode
unless you have no machines except for win2k (and I think XP is also ok)
this includes NT, Linux, Mac, etc. The PDC Emulator will be on the first
machine that you created in the domain, though you can move it to another
one if you need to for some reason. Hope that helps.
Chris Berry
compjma@xxxxxxxxxxx
Systems Administrator
JM Associates
"And here in our server room you can see our Beowolf Cluster of C64's that
keeps our enterprise on the very cutting edge of technology."
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