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How do I remove 2003 DNS Server from 2007 Server

Posted on 2011-03-12
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Last Modified: 2012-05-11
I have migrated from Server 2003 to SBS 2008 and I am having delays on my emails.  I have been warned repeated not to use dcpromo to remove the old 2003 sbs from the domain.  I have completed all the steps in the 2008 sbs migration but the demotions of the old server.  I have turned off the old 2003 sbs but not my emails have a delay and the best practices on the sbs2008 tell me that it is not the primary DNS server.  I need to remove the old 2003 sbs and make the new 2008 sbs the primary dns and remove the old 2003 sbs from the 2008 sbs.  
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Question by:mpage
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by:Glen Knight
ID: 35117002
Who has told you not to DCPROMO the 2003 server? How else are you going to remove it from the domain?

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by:ewkelly
ID: 35117025
I don't know why you cannot demote the 2003 server. That does not make sense.
In the mean time, why not shut off the dns service on the the 2003 server and remove it from the 2008 server replication?
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AustinComputerLabs earned 500 total points
ID: 35117026
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by:Glen Knight
ID: 35117054
That is an excellent guide but it's certainly not alanhardisty's!
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by:ewkelly
ID: 35117064
On your 2008 server, go into the networking properties and demote or remove the 2003 dns entry.
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by:Glen Knight
ID: 35117081
Check both servers they should both be using the 2008 server for DNS, check the DNS server properties in the DNS console and remove the 2003 server from the namecservers properties.

Make sure your clients are using the 2008 server for DNS (run IPCONFIG /ALL to check).  
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by:ewkelly
ID: 35117099
Here is an article from MS with all of the steps to change DNS servers.
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by:ewkelly
ID: 35117101
oops, forgot the link, sorry about that.

http://support.microsoft.com/kb/323383
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by:mpage
ID: 35117139
I have had two other tech whom i trust have problems demoting the old 2003 sbs.  I have turned it off for now but my email is having delay problems.  I think because the old 2003 server is still in the DNS I am having these problems.  I have gone through the entire migration list and the last thing to do is to demote the old server.  Could me delayed emails be because of this?
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by:mpage
ID: 35117147
ID:35117064Author:ewkelly How do I go onto the 2008 server and demote the 2003, a little more detail would be appreciated.
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by:Glen Knight
ID: 35117168
It's probably not demoting because both servers are using different DNS servers on the TCP/IP properties of the network card.

Configure them both noise only the SBS2008 server and then reboot them both.
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by:Glen Knight
ID: 35117175
You cannot demote the 2003 server unless DNS is working properly.

Check the properties like I said.

Post the results of IPCONFIG /ALL and DCDIAG from both servers please
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Author Comment

by:mpage
ID: 35117190
All of my workstations are running on the new 2008 server and I have the dns working fine.  I just removed the old 2003 server's ipaddress from the adapter (old server (192.168.1.3) the new server is 192.168.1.4.  .  I am rebooting the server now.  If there is a way to remove the old 2003 dc entries on the 2008 I think that would help.
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by:Glen Knight
ID: 35117195
You need to DCPROMO the server to remove them properly but you need to uninstall exchange to do that properly.
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by:Glen Knight
ID: 35117201
Is the 2003 server still live and active?
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Author Comment

by:mpage
ID: 35117207
It is alive but it is turned off.  It will only run for an hour since it has reached the 21 days on the domain.
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Author Comment

by:mpage
ID: 35117212
To uninstall exchange on the old 2003 server do you have the steps to do that?
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by:Glen Knight
ID: 35117215
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by:mpage
ID: 35152204
Great job, thanks
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