MS DNS - Internal WWW Resolving to External IP

John Smith jsmith at macroshaft.com
Sat Feb 26 02:19:24 UTC 2005


try posting to microsoft.public.windows.server.dns


On Fri, 25 Feb 2005 08:47:34 -0800, rich251076 wrote:

> For the purpose of describing my problem we have a domain called,
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> mydomain.com :)
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> In my domain I have one MS DNS Server. This sever allows my users to
> resolve internal hostnames and if they wish to browse the internet, the
> DNS server forwards to my ISP's DNS servers so users can resolve the
> desired websites.
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> I have an IIS web server in the DMZ on our network. External users,
> customers and so forth have no problems browsing to my website hosted
> on this machine.
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> When my internal users try to resolve the website they never get to the
> machine.
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> Tests show that:
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> 1. Internal users can get into the website if they put the internal IP
> address of the site into their browser
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> 2. NSLOOKUP for www.mydomain.com on their machines resolved the
> external IP of the site
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> I have entered an ANAME record on my DNS server for www.mydomain.com,
> however when I perform an NSLOOKUP for www.mydomain.com it still
> resolved to the external IP.
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> My questions are as follows:
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> 1. Why can't my internal staff get see our website when they resolve it
> using the external IP, is some kind of loopback happening in the
> firewall e.g. traffic is going out and coming back in?
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> 2. How can I setup MSDNS to resolve www.mydomain.com to the internal
> ANAME entry I created?



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