Manually deleted A record for conpany's only PDC

James N
James N used Ask the Experts™
My boss was troubleshooting an internal dns issue while I am on annual leave and long story short deleted the a record of the PDC from dns. I asked him if he made any changes prior or after the initial incident was reported to our helpdesk and he advised this was the only one. I told him to undo the deletion so the record was manually re-created.
Should I be worried for any dns horrors with dns resolution, end users etc.
Kind regards.
Ps: We take backups of the system state
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IT Engineer
Distinguished Expert 2017
If this was only A record then nothings really happened. A record is rerouting request from Name to IP.
If they're created A record again then all should be OK. (But ONLY if this was A record) :)


Tom has you covered - should be no other issues for you when you get back.... apart from whatever else they did and 'forgot' to tell you ;-)

Lawrence TsePrinciple Consultant
It depends whether you're using DNS dynamic registration or not.  In most of the case, the answer above is "yes".  In this case, I am recommending you not just putting back the "A Record" as static entry.  Try doing "IPCONFIG /RegisterDNS".  Just in case in future you change your IP address the record will be updated accordingly.

If that's domain controller SRV records, that's another story.  You'll need to manually stop and restart NETLOGON service to have them re-created automatically.
Dariusz TykaICT Infrastructure Specialist Senior
If you are unsure that other DNS records were deleted you may consider restarting netlogon service. It will then recreate missing SRV records.
Tom CieslikIT Engineer
Distinguished Expert 2017

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