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Where should I point my backup domain controller & DNS server

Posted on 2013-11-24
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Last Modified: 2013-11-24
My main domain controller is setup to point to itself.

Primary DNS 192.168.1.100
Secondary     192.168.1.101


On backup domain controller/dns should I point it to itself for primary or use the same as above?
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Question by:MEATBALLHERO
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7 Comments
 
LVL 70

Expert Comment

by:KCTS
ID: 39673261
In the real world it doesn't really matter - some would argue that each should point to the other as the preferred DNS server and to themselves as the alternate,
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Author Comment

by:MEATBALLHERO
ID: 39673280
What if both of these server are also DHCP servers but the scope is split. That is what I'm shooting for.
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LVL 57

Expert Comment

by:Mike Kline
ID: 39673283
I'd argue that it does matter so you can avoid race condition issues.  See my answer here:

http://www.experts-exchange.com/Software/Server_Software/File_Servers/Active_Directory/Q_27556645.html

You are good to go with DHCP, split scope is fine.

Thanks

Mike
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LVL 70

Expert Comment

by:KCTS
ID: 39673295
I knew someone would say that :-)
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LVL 8

Expert Comment

by:N-W
ID: 39673392
Microsoft's Best Practice recommendation is:

Primary: server's own private IP (192.168.1.101)
Secondary: next best DNS server (192.168.1.100)
Tertiary: loopback (127.0.0.1)
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LVL 57

Accepted Solution

by:
Mike Kline earned 2000 total points
ID: 39673399
N-W please read the link I posted, where are you getting those best practices from

http://blogs.technet.com/b/askds/archive/2010/07/17/friday-mail-sack-saturday-edition.aspx#dnsbest

Thanks

Mike
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LVL 8

Expert Comment

by:N-W
ID: 39673412
Directly from Microsoft's engineering team and Best Practices Analyzer.

Unfortunately there are internal debates within Microsoft regarding this (as the article also suggests).

A read through http://technet.microsoft.com/en-us/library/dd391963(v=ws.10).aspx and http://technet.microsoft.com/en-us/library/ff807362(v=ws.10).aspx should provide enough information to make an informed decision.
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