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DNS Primary Servers

Posted on 2013-06-26
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How many Primary DNS Servers or Foward Lookup Zones should I have in a Single Domain with multiples sites?
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Question by:lrmcenter
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by:Mike Kline
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There is no one answer here.  If you have a single domain and running active directory integrated zones then generally every DC will also be a DNS server hosing the zone.  DNS information will replicate to ever DC (you can set the replication scope also)

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Mike
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by:Raj-GT
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You can only have a single PDC (Primary Domain Controller) in an AD domain as it is a special role. But there are no real limitation on the number of DNS servers or zones you can have. (There are but you are unlikely to hit it with an SME setup http://technet.microsoft.com/en-us/library/active-directory-maximum-limits-scalability%28v=ws.10%29.aspx)

Depending on the number of users and branch connectivity at the remote sites, you can have a local DC or do away with it altogether and configure the clients to connect to the primary site.
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by:lrmcenter
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I have local DC's that are Global Catalog servers in each site.  In DNS should the foward lookup zone be a Primary Zone and not a Secondary Zone even though it is the same domain?
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by:Mike Kline
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It can be primary but do you know why it is set as primary and not active directory integrated?  

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Mike
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by:lrmcenter
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They are AD Integrated ...  I was referring to when I created the Zone on each site's DC I selected "Primary Zone" and not "Secondary" or "Stub" ...

-marc
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Mike Kline earned 500 total points
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ok yes in that case make it primary

Secondary pulls from another server
Stub zones are used to resolve names in another domain for example.  Stub zones and conditional forwards provide a similar function.

Thanks

Mike
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