DNS Issues

Ran a dcdiag and the following were the errors as per attached. Some of the output seems to point to a server which is no longer on the network i.e. DC001  How can I resolve this, and what other commands can I use as netdiag doesn;t seem to be supported on 2012. Are there support tools for 2012 available ?
DNS.txt
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discoveranotherAsked:
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Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:
You will need to clean your active directory metadata.

One of the way to do this using NTDSUTIL command line tool.

1. Open a command prompt, type ntdsutil and press Enter.

2. At the Ntdsutil prompt, type metadata cleanup and press Enter.

3. At the Metadata Cleanup prompt type connections and press Enter

You can get more information from the links below
http://www.msserverpro.com/metadata-cleanup-using-ntdsutil-in-windows-server-2008-r2/

http://technet.microsoft.com/en-us/library/cc816907(v=ws.10).aspx

Netdiag still works for Windows 2012
http://technet.microsoft.com/en-us/library/cc731434.aspx
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discoveranotherAuthor Commented:
The metadata cleanup works on 2012 yes ?
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Seth SimmonsSr. Systems AdministratorCommented:
that second link does include 2012 in the list for metadata cleanup
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Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:
Look at the section

Applies To: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012
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discoveranotherAuthor Commented:
Just a theoretical question. The old server DC001 although no longer connected to the network, if this was reconnected as a backup server would it solve the issues displayed rather than cleaning up the metadata ?
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Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:
Assuming that the server was not re-installed, it will still have the same SID, yes it will reconnect to the domain.

Regards
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DNS

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