Nslookup Resolving Incorrectly Adding a External DNS IP

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    Good day everyone. A have a question. My DNS seems to be working correctly but I noticed an issue that I can’t seem to find an answer to.

    If I run nslookup from any of my servers in the environment attaching an external DNS server to the lookup, it resolves the non-authoritative answer by appending my internal domain to the name and giving as the address.


    C:>nslookup http://www.google.com

    Server: google-public-dns-a.google.com

    Non-authoritative answer:
    Name: google.com.internal.domain (where internal.domain is my internal domain)

    The above nslookup resolves correctly if I do not enter a DNS server IP. It also doesn’t matter what external DNS IP I use in the lookup. They all resolve the same as above.

    Any ideas what the issue could be here?

    I setup Forwarders on both of my DNS (Domain Controller) servers leveraging my ISP external DNS servers and Google’s public DNS ( as a third option. I also have all of my clients pointing DNS to my internal DNS servers.

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