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Manually adding the missing DNS entries for Active Directory Domain Controller ?

Last Modified: 2015-03-05
Hi People,

I need to fix my AD environment which is looking like a mess at the moment (lots of old entries of Win 2k3 DC that was not properly removed from AD), so based on the netdom query dc and netdom query fsmo command result, I can see that some of the DNS entries in the gc._msdcs.domain.com got missing entries.

My question is:

1. How can I add the missing Host (A) record automatically in the gc folder ? the rest of the entries got timestamp so I guess it is not manually typed.

2. Can I assume that for example, netdom query dc command returns 95 domain controllers/global catalog so the number of Host (A) record, _ldap records (SRV) must also be the same number which is 95 ? what if the number is different can I add it manually or is there any way to automatically adding it to each folder under the _msdcs container ?

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