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DNS Servers Proper Config RRS feed

  • Question

  • So I have seen many articles on how to configure DNS servers, but can not find anything with more than 2. We have 5 DCs and all of them have DNS installed. What would be the best way to configure the Ethernet adapters for each. Currently DC1 has DC2 as primary and the loopback as secondary, DC2 has DC1 as primary and loopback as secondary, and the remaining DCs all have DC1 and DC2 as Primary and Secondary.

    Anthony Zepeda

    Wednesday, January 25, 2017 5:28 PM

All replies

  • Hi,

    I recommend for my customers to configure for each DC  its own IP as first DNS , anthor DC in same site as second DC , and another DC from another as third DC.

    I prefer that each DC don't contact another DC for DNS request , to avoid network traffic.


    Please don't forget to mark the correct answer, to help others who have the same issue. Thameur BOURBITA MCSE | MCSA My Blog : http://bourbitathameur.blogspot.fr/

    Wednesday, January 25, 2017 6:34 PM
  • According to Microsoft Best Practices, a DNS server never should point to itself as the primary DNS server, be it loopback or any other IP-address assigned to that machine. Please see the comment from Greg Lindsay (DNS service engineer) in the comments section.

    I usually recommend to set the closest DNS-server as the primary and all others (in your case - 3 other) as secondary servers. Why all? Because, in case the primary will be unavailable, Windows sends request to all secondary servers simultaneously, then picks up the first received.


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    • Proposed as answer by Kirill Nikolaev Saturday, February 11, 2017 2:55 PM
    Friday, January 27, 2017 10:44 PM
  • Hi Anthony,

    Have you resolved your issue? If yes, could you please provide solution to here?

    If there has anything we can do for you, please feel free to post in the forum.

    Best Regards

    John


    Please remember to mark the replies as answers if they help.
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    Monday, January 30, 2017 2:57 AM