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Windows 2008 Multihomed Server DC DNS Issue

Posted on 2010-11-17
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Last Modified: 2012-05-10
We have a Windows 2008 that is multihomed.  One nic is on the LAN, two NICS are iSCSI Nics that connect to our SAN.  All Nics have static IP adresses.  This 2008 server is a DC and does DNS.  The iSCSI Nics keep registering themselves in DNS automatically.  We've unchecked the option in the Advanced settings under TCP/IP, we've also added the registry key 'DisableDynamicUpdate' for the iSCSI adapters.  The server is fully patched and has been rebooted after these changes, but it keeps registering the iSCSI adapters in DNS.  We need it to only register the LAN adapter.
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Question by:purplecables
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Darius Ghassem earned 500 total points
ID: 34157113
Is this server your Domain Controller? Not really good idea to have your DC or DNS server running multihomed this causing these types of issues.

Go through this link

http://technet.microsoft.com/en-us/library/cc759481(WS.10).aspx

Go into your Network Connections click Advance Settings Make sure your primary NIC is listed first.
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by:Darius Ghassem
ID: 34157225
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by:purplecables
ID: 34157234
The primary LAN adapter is listed first.  I did restrict the DNS server to only listen on the LAN IP address so I will see if this helps.
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Author Closing Comment

by:purplecables
ID: 34159195
What fixed it was selecting the IP's the DNS server should listen on...Thank You!
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