DNS Replication

I have two Domin Controllers and one of the domain controller is running DNS and the other was succesfully replicating until this week. I am now getting Event ID 2087 NTDS Replication - DS RPC Client. I click on the backup DNS now and it says its not configured. I want this domain controller to also run DNS (as it was) in the case that the first Domain controller fails then the back domain controller will enable DNS management.

Any detailed help on how to diagnose and resolve will be GREATLY appreciated
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I assume you are running AD integrated dns. One is the primary and the other a backup. In dhcp you point all your clients to the primary DNS. On your backup dns server go to your forward lookup zone and look at the properties. Make sure allow zone transfer only to the servers listed in name server tab is checked. Make sure both servers are listed under name servers, This needs to be done for all forward and reverse zones.

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renniscomAuthor Commented:
Do I do this to the primary DNS server as well?
If both of your servers are active directory integrated DNS, there is no need to check if your backup DNS is listed in the allow zone transfers, this is essential if you have primary and secondery DNS zones. so first you should make sure that not both zones are primary. second you should make sure if as previously mentioned these servers are AD integrated you should check that your active directory are replicating successfuly.
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Malli BoppeCommented:
Chris DentPowerShell DeveloperCommented:

Elawad is correct, Zone Transfers do not need to be configured if you are using Active Directory Integrated zones.

You need to fix the replication error, DNS will sort itself out (on the server side at least) if replication works.

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