Re: Found Answer but new Q (was DNS Server Not Responding (Win 2003 SBE))

From: Kevin D. Goodknecht Sr. [MVP] (admin_at_nospam.WFTX.US)
Date: 07/12/04 

Date: Sun, 11 Jul 2004 21:54:19 -0500

In news:cVmIc.1763$54.20609@typhoon.sonic.net,
Bob Haroche <spambait@onpointsolutions.com> posted a question
Then Kevin replied below:
> Well, after that long question above I took another look
> at my firewall and saw that I had port forwarding open
> for port 53 under the TCP protocol, but not the UDP
> protocol. When I opened up UDP, the DNS server is able to
> respond to public requests. I even deleted the TCP port
> 53 forwarding, and it still works.
>
> So now my question is why is it UDP needs to be
> forwarded? I thought DNS requests came in over TCP.

You thought wrong, DNS uses UDP for queries, TCP for zone transfers. 

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