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DNS does not work properly on clients. Any ideas?

Posted on 2007-11-24
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Last Modified: 2010-04-18
Windows network..

Before:
Win 2000 Domain Controller - DHCP & DNS
Win 2003 -Second DNS

Now:
Installed a second Win 2003 that I want to use as DHCP and DNS.
The service has been disabled on the Win 2000.
DHCP seems to work, clients get IP. But the DNS does not work using clients to surf from.
If I use the server Win 2003 (new one) I am able to access Internet...

Any ideas?






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Question by:Handersson75
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by:rindi
ID: 20342414
Have you dcpromo'd the server to be a domain controller?
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by:Handersson75
ID: 20342425
The server is already a Active Directory Domain Controller...

More ideas?
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by:rindi
ID: 20342441
If it is a DC, then make sure that the DHCP settings only point to your servers for DNS, and not any on the inet. If you have more than one DNS servers setup, make sure those servers have entries in the DNS server management console, so they can update each other.
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by:Handersson75
ID: 20342452
Rindi. is this what you meaning?

Srv1 DNS settings for nic points on srv1 + srv2
Srv2 DNS settings for nic points on srv2 + srv1

Yes, they update each other...
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by:Handersson75
ID: 20342489
I have now configured "scope options" in DHCP and internet is working for the clients...
Forgot to add DNS-Servers, DNS and Router...

But its nog ok yet...
In dnsmgmt I do not see any "cashed lookups"...

Why?
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Expert Comment

by:rindi
ID: 20342490
Yes, only use your DNS servers, no external ones. Active Directory should forward all requests that it can't resolve to the inet.
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by:Handersson75
ID: 20342514
It also seems that I am unable to connect to our webmail (exchange 2003)
I can connect to the site, but after i use my username and password its just pending...

any ideas?
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by:rindi
ID: 20342516
Cached lookups? That i wouldn't know, but I don't think that is necessary, on the contrary, if a domain within the cache has changed, you could get problems.
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by:rindi
ID: 20342518
Are you using a .local domain internally like recommended, or is it the same domain as the official domain?
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by:Handersson75
ID: 20342528
Using .local
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by:Handersson75
ID: 20342532
In dnsmgmt in my old dns I can see something called "cashed lookups" this is not anything I can see now in th new DNS...
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by:rindi
ID: 20342645
They probably only show up once there are some cached lookups. A cache normally holds data that has recently been requested, it is supposed to make the lookups a little faster the next time that domain is requested.
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by:Handersson75
ID: 20342774
oki... good to know.

Related question, if I use explorer and expand my windows network the "old" server still says "domain controller". How do I change this?
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by:rindi
ID: 20342941
I'm not sure what you mean, but if you didn't demote the server using dcpromo it'll still be a DC.
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by:Handersson75
ID: 20343233
I corrected the DHCP with DNS info + router info and now its working...

Except the Exchangeserver.. see this thread http://www.experts-exchange.com/Networking/Protocols/DNS/Q_22980125.html
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Handersson75 earned 0 total points
ID: 20373998

Installed a new DNS and Exchange works again...

Case closed.
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