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A and C Record Issue in DNS RRS feed

  • Question

  • Hi Team,

    There was a request to create some A, CNAME and SRV records under my DNS for which the domain was abc.com

    In order to complete the request I created a new zone as abc.com and created A, CNAME and SRV records under the new zone.There is a internet website already existed with www.abc.com (abc is company name). As soon as I created new zones in my Internal MS DNS servers users reported that they were not able to open Internet website www.abc.com.

    As per the nslookup output from user machine, the website was not resolving to IP address. That's why they were not be able to open open  websites using hostname. As soon as I removed the recently created zones, They were able to resolve the website name to IP address and surf the websites.

    I have forwarders and root hints setup on my Internal DNS server for Internet queries. Could anyone please suggest the alternate approach to create the new DNS entries under abc.com in my internal DNS server without impacting the public hosted website abc.com

    Tuesday, July 11, 2017 3:42 PM

All replies

  • Hi ranabrij

    >>There is a internet website already existed with www.abc.com (abc is company name).

    The internal domain name of abc.com is conflict with the public hosted website www.abc.com.

    When you want to resolve www.abc.com, it will only query to the zone of abc.com. If the queried name does not find a matched answer in the zone of abc.com , it will not go forwarder or root hints.

    As a workaround, you could add the A record of www.abc.com into the zone of abc.com.

    Best Regards,

    Candy


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Wednesday, July 12, 2017 3:20 AM
  • Adding to Candy posts

    After performing the steps suggested by Candy..

    do "IPconfig /flushdns" and  "IPconfig/registerdns" on all client systems.

    It will help to flush the old records and obtain fresh records data from your DNS server.

    Wednesday, July 12, 2017 5:29 AM
  • Hi ranabrij,

    Just checking in to see if the information provided was helpful.

    Please let us know if you would like further assistance.

    Best Regards,

    Candy


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Monday, July 17, 2017 1:55 AM