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?

-----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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