Re: Domain Controller Redundancy
From: ptwilliams (ptw2001_at_hotmail.com)
Date: 10/13/04
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Date: Wed, 13 Oct 2004 18:34:03 +0100
I didn't say it way necessary to have multiple domains - that would be
ridiculous information given the question.
I said that the IM *only* needs to be separated if there *is* multiple
domains and *not* all DCs are GCs. In any other scenario, the IM is not
needed.
It is redundant in a single domain, as there are no cross-domain phantoms;
and it is redundant in a multi-domain forest if all DCs are GCs because each
GC stores a partial replica of all objects, one attribute of which is
DN -thus, there are no phantom objects because the GC knows of all objects.
This may help explain:
-- http://www.msresource.net/content/view/14/46/
-- Paul Williams http://www.msresource.net http://forums.msresource.net ______________________________________ "Valentin Allert" <Valentin_Allert@hotmail.com> wrote in message news:uQlJ1wDsEHA.3076@TK2MSFTNGP10.phx.gbl... no microsoft help text in german says that you have to split the infrastructure master and the GC, if you don't have a GC on all DC. It is not necessary to have multi domains only multi DCs "ptwilliams" <ptw2001@hotmail.com> schrieb im Newsbeitrag news:uTj5m7CsEHA.1164@TK2MSFTNGP10.phx.gbl... > Yes that's fine. This is only an issue when there are multiple domains > and > not all DCs are GCs. Otherwise, the IM role holder is defunct. > > > -- > > Paul Williams > > http://www.msresource.net > http://forums.msresource.net > ______________________________________ > "fnstrat2" <fnstrat2@discussions.microsoft.com> wrote in message > news:087F7305-8B4E-4770-81A1-DCBCFA940881@microsoft.com... > Also, with two DC's it is ok to have the GC on the Infrastructure Master > as > long as the second DC is also a GC. > > "Andrea" wrote: > >> Hi, >> >> >> >> I have two domain controllers on my domain (one SBS2003 server (DHCP + >> DNS >> server) and one Windows 2003 server). >> >> I want to have the domain controllers configured to so that if either one >> is >> unavailable users on >> >> the network will still be able to logon and be authenticated. >> >> >> >> These are my questions : >> >> >> >> 1 - In order for a DC (domain controller) to authenticate clients it >> needs >> to be a GC (Global Catalog Server) ? Do I have to configure the Windows >> 2003 >> DC server as a GC ? >> >> >> >> 2 - DHCP : to provide DHCP redundancy do I have to configure DHCP scopes >> for >> two different ranges, disable the DHCP server service on my Windows 2003 >> server and enable it when my SBS2003 fails ? >> >> >> >> 3 - DNS : forward and reverse zones on SBS2003 are Active-Directory >> Integrated zones. How do I have to configure DNS zones on my Windows 2003 >> server ? How do I have to set up primary and secondary DNS server >> addresses >> on my lan network cards ? (primary = itself, secondary = the other DC ?). >> >> >> >> Thanks, >> >> Andrea >> >> >> > >
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