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DNS configurations

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HebieBug

Programmer
Jan 8, 2001
354
JP
Have to DNS's that I will be needing to use
1) DNS for our LAN
2) DNS of our ISP
So I add them both in
As soon as I put the LAN as the first then the internet won't work. And visa versa.
My understanding of the TCP/IP setting is that you can put both in and if one can't find the address then it would work it's way down the list of DNS IP addresses until it finds it.
Anyone have an answer?
 
If you install DNS on your WIN2k server and didn't have access to an ISP DNS at that time, DNS will create a root (.) zone so it's doesn't forward an DNS resolution to your ISP.

If you go into your DNS console and expand your forward lookup zone. Look for a zone that has a . as the zone name, if it's there delete it.

Right click on the server name and select properties. In the Forwarders tab, type in the IP address of your ISP's dns server.

Your internal clients only need the IP address of your W2k DNS server. Now your clients will send DNS name resolution requests, like to the W2K DNS server. That server will not be able to resolve it, but will forward it to the ISP server andrequest that it resolves the name. The ISP will then pass back the result to your server and cache it.

Hope this helps.
 
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