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Order DNS setting in Active Directory

    Question

  • Hello

          our Environment have 4 server DC as below

          DC1 : 10.56.230.1

          DC2 : 10.56.230.2

          DC3 : 10.56.230.3

          DC4 : 10.56.230.4

          DNS setting I can set

          in DC 1

          10.56.230.2

          127.0.0.1

          10.56.230.3

          10.56.230.4

          in DC 2

          10.56.230.1

          127.0.0.1

          10.56.230.3

          10.56.230.4

            in DC 3

          10.56.230.1

          127.0.0.1

          10.56.230.2

          10.56.230.4

         in DC 4

          10.56.230.1

          127.0.0.1

          10.56.230.2

          10.56.230.3

        please recommend help me about order dns

    Thanks

         

    Monday, April 24, 2017 6:56 AM

All replies

  • What you have should be fine but I would replace 127.0.0.1 with respective DC's own address.

     

     



    Regards, Dave Patrick ....
    Microsoft Certified Professional
    Microsoft MVP [Windows Server] Datacenter Management

    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.

    • Proposed as answer by Todd Heron Monday, April 24, 2017 7:43 PM
    Monday, April 24, 2017 1:50 PM
  • Agree with Dave, always set the real IP address of the DC not the loopback, other option is to spit the load between .2 and .1, i see you have .1 used as DNS1 in all the other DC's. 

    If DC3 and DC4 are in separate site consider using DC1 and DC2 as backup DNS servers and DC3 / DC4 as alternate DNS servers in the same site.



    Regards, Jim MSCS - MCP Disclaimer: This posting is provided AS IS with no warranties or guarantees , and confers no rights. When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or Mark As Answer

    Monday, April 24, 2017 2:04 PM
  • As far as ordering is concerned. The AD server should point to its own IP address first  which means, order for DC1 is 

     DC1

    10.56.230.1

    then you can have DC2 and DC3 and DC4 after those for redundancy.

    Monday, April 24, 2017 4:20 PM
  • Hi,
    Technically, it is working based on the settings so far, however, someone also suggested that
    “If you have a very large environment, set the DC as its own secondary DNS server.
    For smaller environments, it's should be safe to set its own as the primary.”
    Here is a detail discussion in the following thread, you could refer to: https://social.technet.microsoft.com/Forums/azure/en-US/b7bf37a2-6e1a-40a8-8d4b-1c15ee9bc0fa/2k8-best-practice-for-setting-the-dns-server-list-on-a-dcdns-server-for-an-interface?forum=winserverNIS
    Best regards, 
    Wendy

    Please remember to mark the replies as answers if they help.
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    Tuesday, April 25, 2017 8:15 AM
    Moderator