Adding NS Record: An unknown error occured while validating the server

Question

_{Wednesday, February 15, 2012 5:39 PM}

I'm trying to add a new NS record to our primary AD integrated DNS zone because a DC has been rebuilt and now has a new name. Whenever I try, I get the following error (see the screenshot):

An unknown error occured while validating the server

**

**There are no firewalls between these machines, no ACLs on any of our networking equipment and the server responds to ping requests both by IP and name.

I have 2 questions really:

1) Does anybody know why I am getting the error?

2. Do I need a NS record for every DC, even if DNS is not hosted on the DC I am trying to add the record for?

Cheers

Adam.

All replies (3)

_{Thursday, February 16, 2012 2:38 AM ✅Answered}

If DNS is installed on a DC, it should automatically create an NS record. Yes, all DCs that host DNS for that zone must have an NS record, since after all an NS record is a 'nameserver' record for a DNS server that hosts the zone. The only time I see you have to make changes here is when you remove old DCs or other records. Maybe the record was already in and you're trying to add it?

If DNS is not hosted on the DC that you're trying to add a record, then I can see why you're getting an error. It's trying to validate the zone.

Ace

Ace Fekay
MVP, MCT, MCITP Enterprise Administrator, MCTS Windows 2008 & Exchange 2007 & Exchange 2010, Exchange 2010 Enterprise Administrator, MCSE & MCSA 2003/2000, MCSA Messaging 2003
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Microsoft MVP - Directory Services
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_{Thursday, February 16, 2012 4:48 AM ✅Answered}

Hi Adam,

Thanks for posting here.

Yes, So may I know if we have already transferred our AD-integrated zone of this AD system to this DNS server (10.59.100.12) ? and was the DNS service running on it ?

We can try to evaluate it by running some tests :

Form our current domain controller:

C:\nslookup

>server  10.59.100.12

> riddlesdown.local

And will we get any result or maybe a IP address.

> Do I need a NS record for every DC, even if DNS is not hosted on the DC I am trying to add the record for?

If no DNS service running on a domain controller then there is no necessary to set a NS record to point to that host . But usually we will always get DNS service running on a domain controller with hosting an AD-integrated zone.

Resource Records and Zones

http://technet.microsoft.com/en-us/library/bb727007.aspx#EEAA

Thanks.

Tiger Li

Tiger Li

TechNet Community Support

_{Friday, February 17, 2012 10:36 AM}

Hi Adam,

If there is any update on this issue, please feel free to let us know.

Regards,

Tiger Li

TechNet Subscriber Support in forum
If you have any feedback on our support, please contact  [email protected].

Tiger Li

TechNet Community Support