Dual Network Cards in Domain Controller and File Servers

Posted on 2011-10-14
Last Modified: 2012-06-27

We are implementing a SAN and each of my windows servers will be attaching to it via a private network.  When I static the other NIC in each of my machines, those private IP's show up in DNS.  How can I hide these private IP's so they do not publish to DNS.  This is espeically problematiic with my Domain Controllers since my users are having issues logging on because it tries to find the private IP address.

I un-checked the "register this connection in DNS" box in the DNS properties of the NIC and it still publishes the private IP.


Question by:lbtoadmin
    LVL 37

    Accepted Solution

    Advice and best practice is NEVER to have dual nic's in a DC. You have to manually make changes to all kinds of things to make them work correctly unless they are teamed.

    Why would a DC need to attach to a SAN??
    LVL 24

    Assisted Solution

    As above, do not use dual NIC's on DC's whether that be multi-homed, teamed, load balanced whatever, disable the second NIC, if the other fails you can manually fail over to it then,  but until then leave it alone, it is more hassle than it is worth and you will get little to zero benefit.


    Author Closing Comment


    Well, you've both set me straight :-): no dual NICs on DCs.


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