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How do I create a secondary dns?

dorato99 asked
Medium Priority
Last Modified: 2010-08-05
Hi, we currently have a dns and want to create a secondary dns. I think we have the main setings right but cant get the reverse lookup working.

can someone give me a step by step guide or tell me how to do it?

Thank you.
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Senior Systems Engineer

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Is there instructions for 2000 or is it the same?
Roland LeeSenior Systems Engineer

Top Expert 2013
Actually very similar, however if your primary DNS serve is not a 2003 server you shouldn't have to do the "Allow zone transfers " last step.
Another article specific to Server 2000 you may find helpful:
Active Directory is heavily DNS-Integrated and a second DNS server can be as simple as adding another domain controller to an existing Active Dorectory domain.  All you would need to do is make sure DNS is instslled on the second controller and configured to point to your ISP or wherever.  You'd just need to make sure forwarding is setup on the second controller.

Clever Tip:  You can tell your secondary controller to forward requests to the first DNS to keep your LAN segments running smoothly, but this will create a problem if the primary goes down.  Here's what I do: Put your primary DNS on the top of the list of forwarders with your ISP DNS address(es) right below it.  Then change the timeout from 5 seconds to only one second.  Because you're on the same LAN the primary will never timeout for more than a second.  The secondary will try the primary  DNS first and then the ISP after one second if there's an outage.  
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