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Secondary DNS Server

Posted on 2009-07-13
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Last Modified: 2012-05-07
I have one domain and two Windows 2003 Domain Controllers.   One is a Parent DC and the other one is additional domain controller.  I have installed DNS on both the Domain Controllers.

When I look into the properites of DNS, the type on both of them shows as "Active-Directory Integrated:".  I thought the DNS on the additional DC will be shown as Secondary DNS.  But, that is not the case.

Can someone explain if all the DNS Serves in a AD Forest will be shown as "Active Directory Integrated" or can we configure them as Secondary DNS too.

Please advice.

Thanks
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Question by:santhoshu
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7 Comments
 
LVL 1

Assisted Solution

by:unluckynelson
unluckynelson earned 600 total points
ID: 24840734
DNS Server replicate amongst themselves as soon as additional DNS servers are installed. They are basically simply a replica of each other throughout the domain...
I think where the confusion comes in is on host pc's the secondary DNS setting... This is there only if the primary DNS is down and then the host pc will try the secondary DNS server... While both are performing the same funtion: resolving host names...
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Assisted Solution

by:oBdA
oBdA earned 1400 total points
ID: 24840753
If the zone type of your AD forward lookup zone is set to AD integrated, then all DCs with DNS installed will have this zone available, and will show the respective DNS server as Primary for the zone.
This is *completely* *normal* and one of the big advantages of ADI zones: *any* DC/DNS is able to accept changes to DNS and replicate them across to the other DNS servers. In a regular primary/secondary setup, the server hosting the primary zone *has* to be running for any change in DNS to take place.
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LVL 10

Author Comment

by:santhoshu
ID: 24841832
In a Primary/Secondary setup, Primary has to be running for any change in the DNS to take place.  Say, if the primary server crashed, can we promote the secondary server to primary.  If yes, can you please let me know how to go about it?

Thanks in advance.
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LVL 85

Expert Comment

by:oBdA
ID: 24842022
If it's a Windows DNS, just right-click the zone and change the type.
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LVL 10

Accepted Solution

by:
santhoshu earned 0 total points
ID: 24842511
Thanks oBdA
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LVL 10

Author Comment

by:santhoshu
ID: 24842515
Thanks unluckynelson
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LVL 10

Author Comment

by:santhoshu
ID: 24842542
Sorry People, I didn't mean to close this chain... What I meant is to accept the solution... looks like I clicked on the wrong button
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