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"nslookup" says can't find server name for address 10.0.0.5: non-existent domain. But there is a domain.

There is a domain called bigfirm.biz and I have a client connected to it and can logon with various accounts.  

So why this "non-existent domain".

I did have problems getting DNS to work, so no doubt the problem lies there.
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Alistair7
Asked:
Alistair7
1 Solution
 
oBdACommented:
The first question is whether you've setup a reverse lookup zone at all; the reverse lookup zone is not created by default when running dcpromo. If you don't have a reverse lookup zone, you can't lookup the name for a given IP address.
Then it might be that the DNS entries on your machines are pointing to your ISP's DNS.
Assuming your DC is running DNS, the following settings are correct: On your DC/DNS, and on all of your domain members, make sure the DC's address *only* is listed in the TCP/IP properties (be that via DHCP or static; do NOT use 127.0.0.1 on the DNS itself!). That makes sure your internal lookups work correctly.
For internet access, delete the root zone (if present; it's the single dot: ".") on your DNS in your forward lookup zones. Then open the properties page of your DNS server and configure forwarders to point to your ISP's DNS. The forwarders section is the *only* entry in your network where your ISP's DNS should be listed.

Frequently Asked Questions About Windows 2000 DNS and Windows Server 2003 DNS
http://support.microsoft.com/?kbid=291382

Best practices for DNS client settings in Windows 2000 Server and in Windows Server 2003
http://support.microsoft.com/?kbid=825036

HOW TO: Troubleshoot DNS Name Resolution on the Internet in Windows 2000
http://support.microsoft.com/?kbid=316341

HOW TO: Configure DNS for Internet Access in Windows 2000
http://support.microsoft.com/?kbid=300202

Setting Up the Domain Name System for Active Directory
http://support.microsoft.com/?kbid=237675

Troubleshooting Common Active Directory Setup Issues in Windows 2000
http://support.microsoft.com/?kbid=260371

How to Verify the Creation of SRV Records for a Domain Controller
http://support.microsoft.com/?kbid=241515

How Domain Controllers Are Located in Windows
http://support.microsoft.com/?kbid=247811

How Domain Controllers Are Located in Windows XP
http://support.microsoft.com/?kbid=314861
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Alistair7Author Commented:
Hi oBda

Could I ask you a favor.  If you had the time to look at 1 of my questions I'd be most grateful.

The question "All Users.WINNT and Default User.WINNT folders.  What should I do?"

I've already spent so much time installing over 50 programs.  I do not want to reinstall windows2000.
Can I just continue with these 2 WINNT folders?  I will be using the image from this PC to roll out to 17 others PCs.

I have had no problems with this PC at all.  

DO YOU SEE ANY PROBLEMS EMERGING WHEN I START RUNNING THEM UNDER A 2003 DOMAIN???

I really need an answer to this before I continue installing more programs.

Thanks

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