microsoft server 2003 promote secondary dns to primary

Hi,
I have 2 DNS servers one is the primary and the other secondary for the forward lookup zones.
Given a situation where the primary is unavailable how do I promote the secondary to take over.

Thanks
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john_123Asked:
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Chris DentPowerShell DeveloperCommented:

Is this in relation to an AD Domain?

If they're Active Directory integrated zones you don't need to promote anything. You only need to provide the DNS server address to the clients on the network.

AD Integrated uses a Multiple Master model which allows you to have multiple copies of the same zone in Read / Write state - in the traditional Master / Slave model the Master is Read / Write and the Slave is Read Only.

Changes to any of the versions of the zone anywhere in the directory are replicated to all other Name Servers on the network.

Once the addresses are in place on the clients you can see how it fails over to a different DNS. Add a deliberately incorrect IP for the first DNS on your client, then run NSLookup. It will state it cannot find the first server and connect to the second.

If they're not Active Directory Integrated is this to replace a failed Master Name Server?
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cfairleyCommented:
You can change the primary/secondary status using the Zone Properties dialog.

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cfairleyCommented:
Just to clarify, my answer was related to primary/secondary, not AD Integrated.  Here is how to change primary/secondary in W2K.  I think it's the same in 2003.  Im not near my server to check.

http://www.eu.microsoft.com/windows2000/en/advanced/help/default.asp?url=/windows2000/en/advanced/help/sag_DNS_pro_ChangeZoneType.htm
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john_123Author Commented:

Apologies, this is not AD integrated.  However, cfairley pointed me in the direction of the Zone properties dialog.
I see it now! didn't see it before but with reassurance from others it helps to take a second look!

thanks, john
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Windows Server 2003

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