DNS Forwarder

[djtech2k]

Is it possible to create a conditional DNS Forwarder for a subdomain inside of a zone loaded in your DNS.

Here is my situation. I have DNS integrated with my AD2003 structure. I have an external Linux box doing DNS for an outside application for my Cisco equipment. The zone being run on this outside box is wan.mydomain.net. My inside AD DNS is running the domain mydomain.net. I need my inside domain users to be able to resolve IP's for things like device1.wan.mydomain.net. As of now, it cannot because the outside DNS server is not known by my internal DNS. My first thought was to create a conditional forwarder to point any wan.mydomain.net traffic to this Linux server for DNS resolution. But when i try to do this, I get a generic error in DNS and nothing in the event logs.

Is that possible to do and I am having a problem or is it not a possibility in Microsoft DNS?

Either way, I need to find a solution. Any ideas?

 

[porkchopexpress]

What error are you receiving?

You should be able to specify another DNS server in you forwarders is port 53 blocked. If there are only a limited number of external devices you could create address records for them.

 

[djtech2k]

The server forwarders cannot be updated. A zone configuration problem occurred."

Thats the error.

There are no ports being blocked in this case. As for the devices, there are many and it needs to be dynamic because ciscoworks adds them as network devices change.

 

[porkchopexpress]

Maybe you could delegate the zone.

http://articles.techrepublic.com.com/5100-10879_11-5846057.html

 

[djtech2k]

Interesting.....I am not sure how this would work, but I will look into it at the least.

 

[porkchopexpress]

Haven't looked into it since exam time but it should allow you to delegate any queries for that zone to your linux DNS box. From what you describe above it seems that both domains are in the same namespace so you can't use a forwarder.