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Server 2012 R2 Domain -- HELP -- Changed server name


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#1 alpinetim72

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Posted 05 May 2015 - 01:58 PM

Ok guys

 

Here is a real dozie.

 

Suppose you have a Server 2012 r2 and it's a primary domain controller.  It has a "servername" and i went in and changed it to "serverothernname"

 

After reboot the domain is no longer functional and the directory tree is missing fom the active directory.

 

I want to simply change it back to "servername" and I think everything will begin to work.

 

Unfortunatley the server gives an error that looks like the below.

 

Am I hosed and have to start again??

 

Before anyone asks there are no backups or systems state backups.  The data only is being backed up.

 

Please help!!!

 

Attached File  Server.JPG   160.66KB   0 downloads



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#2 x64

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Posted 05 May 2015 - 04:25 PM

Ouch!

 

Something to try - I've never used this to change a server name, but I think it stands a chance...

 

If you have the DS restore password, boot into DC restore mode. The server should then again be working with local authentication. See if you can change the server name from there.

 

Reboot and cross fingers everything!

 

x64



#3 JohnnyJammer

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Posted 05 May 2015 - 08:28 PM

To be honest i didnt even think you could change a domain controllers machine name as the Change button is normally greyed out in sysdm.cpl!

 

has this option been enabled in 2012?


Edited by JohnnyJammer, 05 May 2015 - 08:28 PM.


#4 alpinetim72

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Posted 06 May 2015 - 04:31 PM

Thanks for your help guys but what fixed the issue was going in and changing every refernce to the "new server" name and replacing with the "old server" name in the registry keys.  This completely resolved the issue and I'm back up and running.  I did this from the DC Restore mode.



#5 Wand3r3r

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Posted 11 May 2015 - 02:30 PM

Most likely this was a result of not updating DNS server settings.  There were no new host entry for the server name and as such it could not be resolved to the existing domain name.






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