Re: DNS resolution not working (Win2k Pro)

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From: Kevin D. Goodknecht Sr. [MVP] (admin_at_nospam.WFTX.US)
Date: 12/08/04 

Date: Wed, 8 Dec 2004 09:19:01 -0600

In news:1nwb8l28enrxu.7h8mg0i00l6a$.dlg@40tude.net,
Gerhard Fiedler <lists@connectionbrazil.com> commented
Then Kevin replied below:
> Hello,
>
> I have a problem with the DNS resolution on a Win2k Pro
> system. The network adapter is set up with hardcoded
> addresses and DNS server addresses, and access from it to
> the internet and from the internet to the system works.
>
> For example, "ping 216.109.112.135" works fine. But "ping
> yahoo.com" returns "unknown host", even though I can ping
> both DNS server IP addresses fine and both the "DNS
> Client" and "DHCP Client" services are running.
>
> In the event viewer I get a dnscache warning whenever the
> computer starts (event id 11050) that says that the
> computer can't contact any DNS servers. Why is this, when
> I can ping the two DNS servers from the same computer,
> and they seem to work as DNS servers on other systems?

Just because you can ping a certain IP address does that mean you can
connect to a given port at those same IP addresses?

> (The behavior is independent of the installed firewall
> Tiny PF 5. When I disable it, nothing changes.)
>
> Can anybody help me out here, please? What can I check,
> what is necessary for the DNS resolution to work?

I suspect a firewall rule in place the blocks outbound connections to port
53 UDP. 

-- 
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
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