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Internal DNS server for internal/external domain

Posted on 2009-12-22
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Last Modified: 2012-05-08
I set up a DC/DNS for an internal domain, we'll call it mydomain.net.  When the domain was set up, there was no need to worry about whether or not it was going to be an external domain.  At this point however, it recently became an active external domain, so I'm having some trouble with external DNS entries when accessed from within the internal domain.

For example:
the address test1.mydomain.net is not registered to my DNS server, nor will it be because it is an external host.  However, I need my internal machines to be able to access it, and they currently cannot.

I would really like to not have to rename my internal domain.  There are a lot of internal resources that are already configured using the existing domain and changing it would be a massive pain.

Is there a way that I can automatically refer requests to subdomain.mydomain.net that do not exist as A records in my dns server to an external dns server?  I'm using windows server 2003 and the associated DC/DNS/WINS servers.
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Question by:techport13
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Accepted Solution

by:
Henrik Johansson earned 2000 total points
ID: 26108297
If you want the internal users to resolve the external mydomain.net addresses, you nead to create the necessary A-records in the internal DNS-zone and enter the external IP as data for the record.
For handling subdomain in internal mydomain.net, create a delegation in the internal DNS zone and point out the (external) DNS server where the subdomain.mydomain.net is located.
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Author Comment

by:techport13
ID: 26108353
This solution is a little bit more labor intensive than I'd like it to be, but since I only have a few externally hosted subdomains, creating a delegation is probably the most efficient way to go.

Thanks!
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