These are the methods I usually use to have domain controllers records 
recreated/updated:
Nltest /dsregdns
Re-starting the netlogon service
Ipconfig /registerdns
Dcdiag /fix

But nltest usually gives me the results I’m looking for.
Hope that helps.

Rubens 
Sent from Outlook Mail for Windows 10 phone


From: Michael B. Smith
Sent: Tuesday, February 2, 2016 7:13 PM
To: [email protected]
Subject: RE: [NTSysADM] Missing DNS Glue records

I can’t see those things. I have old eyes.

If you do an “ipconfig /regdns” in the root and on a couple of child DCs, does 
that help anything or generate any event log errors?

Have you done a “dcdiag /fix” ?

From: [email protected] [mailto:[email protected]] On 
Behalf Of Michael Leone
Sent: Tuesday, February 2, 2016 3:23 PM
To: [email protected]
Subject: Re: [NTSysADM] Missing DNS Glue records

On Tue, Feb 2, 2016 at 3:04 PM, Michael B. Smith <[email protected]> wrote:
> Take a look at \windows\system32\config\netlogon.dns in both a root DNS 
> server and a child DNS server. Are the glue records present in either one?
What exactly am I looking for? I don't see anything that looks like a glue 
record in either (altho it's entirely possible that I am just missing it ..)


The child DNS looks like:



The root DNS looks like: (this on the root DC that dcdiag says has broken 
delegation to the child domain)




>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] 
> On Behalf Of Michael Leone
> Sent: Tuesday, February 2, 2016 2:37 PM
> To: [email protected]
> Subject: [NTSysADM] Missing DNS Glue records
>
> SO I apparently have a big problem. We run a parent-child domain structure 
> here. And today I noticed that I was having replication failures between the 
> DCs in the root domain and some of the DCs in the child domain.
>
> I do dnslint on the DC in the child domain, all is fine. I do dnslint on the 
> DC in the root domain, and I get errors. Specifically, missing glue records 
> for all 6 DCs in the child domain.
>
> I don't know how they could have disappeared. I know we demoted a DC in the 
> child domain a couple weeks ago, but that was a graceful demotion, and showed 
> no errors. Nothing was done in the root domain (we actually haven't done 
> anything manual to it in years). But something screwed up royally, obviously.
>
> And I'm not sure where to go here. I get that I need to create A records in 
> my DNS (dunno how they disappeared), but I don't know how to do that, since 
> they are for the DCs in the child domain.
>
> And this has to be done at the root domain level, unless I am totally 
> mis-understanding.
>
> Any help greatly appreciated. Apparently replication has been screwed up for 
> 12 or 13 days now.
>
>


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