Leftover DNS records after removing a domain controller
Posted on 2010-11-25
I followed the MS protocols documented on technet to remove several domain controllers that were also acting as a DNS servers. I'm still seeing a number of DNS records referencing the old server:
1. NS records in the _msdcs.mydomain.local zone
2. Some SRV records under _msdcs
3. Some under domaindnszones under mydomain.local
4. Some under forestdnszones under mydomain.local
I see these for several DCs I removed. Some are from mydomain.local and some are from subdomain.mydomain.local.
I saw no errors during the dcpromo process for any DC and I'm seeing several DCs listed so I'm assuming this is not some one-time dcpromo error.
Why are these records there? Will they be automatically removed at some point? If not, how do I remove them?