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Help Configuring DNS

Posted on 2006-07-08
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Last Modified: 2010-03-19
Hello All:

I apologize in advance for the "newbieness" of this question.

I've acquired a new client who has a Windows 2000 Server, and a mixed environment of xp home, media center, professional, 98 and ME computers.  I've gotten rid of all the 98 and ME computers and replaced them with XP Pro.

The site was using their server as a file server only.  The workstations were all peer to peer workgroup.  As I upgrade their network environment from workgroup to domain, here's what I encouter.  The names I use aren't real...but just to illustrate the client's present conditions


Customer's Workgroup name:  contoso
Customer's Website domain: contosopromotions.com

Windows 2000 Server Domain Name: contosopromotions.com

The server is set to Mixed mode, so when adding a domain, you have to use "contoso" to get the login and password prompt for adding the machine, but once the computer is joined to the domain, it shows up as being a member of the "contosopromotions.com"

Active Directory is installed.

I changed the DNS of this server so that the server points to itself as the DNS server.  Each computer on the network points to the server for it's DNS resolution.

Ok, so now that I've done this, every computer can visit any website on the internet except www.contosopromotions.com.  That's because the server thinks that IT is contosopromotions.com.  But actually, contosopromotions.com has an external website IP address of 400.300.200.100 (not a real IP), so it's not the 192.168.1.2 address that I've set DNS to in the sever.  (BTW...I've added the ISP's DNS IP's in the DNS forwarders tab in the properties, which is why they can go to any other page on the internet).

How do I configure this server so that it knows to forward request to www.contosopromotions.com to the external ip address, rather than pointing to itself for just that one page?
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Question by:MtnNtwks
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Expert Comment

by:juandelacruz2001
ID: 17065775
Start DNS Manager.
Select your zone comanyname.com.
Right Click on it and select 'New Delegation'.
Click on next.
Under delegated domain:  enter:   www
Click on next.
Click on Add to add a names server.
Give the Names Server name and its IP address where your domain is registered.

Good luck...
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Author Comment

by:MtnNtwks
ID: 17066096
Ok...well, I've tried it several times.  Each time, it keeps bringing me to www.contosopromotions.com/localstart.asp, and I get a prompt for login, password and domain.  If I just click ok, I get two windows...one is an IIS configuration page, the other is a "page cannot be displayed" which comes in as a popup.
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Expert Comment

by:juandelacruz2001
ID: 17066592
Have you tried to flush dns records? If not, run the ff from a command prompt.

ipconfig /flushdns

then after that

ipconfig /registerdns

Good luck...
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Accepted Solution

by:
juandelacruz2001 earned 1000 total points
ID: 17066605
You may have to add too an A host record entry on your DNS.

In the DNS console create an A record in your forward lookup zone named www, insert your IP address of your outside webserver there.  

Good luck...
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LVL 2

Author Comment

by:MtnNtwks
ID: 17069509
I had a little trouble figuring out exactly where to add the A record...only because it "add new" doesn't actually say "A" record.  You have to select "other records" and then choose the A record from that list.  Thank you Microsoft for your continued efforst to overcomplicate the simple :-)

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