RE: Win2k Machine contacting Root Server???

"Adrian Marsden" <[email protected]> Fri, 24 Mar 2006 04:49:18 -0500
Newsgroups gmane.comp.security.incidents
Message-ID <[email protected]>
I believe you will find there is a setting that tells a Win2k server to try TCP if UDP fails for DNS resolution. Maybe the UDP was failing and the box was doing as it was told.


-----Original Message-----
From:	Alex [mailto:[email protected]]
Sent:	Fri 3/24/2006 1:53 AM
To:	[email protected]
Cc:	
Subject:	Win2k Machine contacting Root Server???

Hi,

I recently ran "netstat" on my personal laptop (running Win2k) and was 
shocked to see that it had been making TCP connections to the root servers 
(to their domain port). I know that some DNS queries are performed using 
TCP, but I find it somewhat disturbing that the root servers were 
involved.

I did a little googling and found a few remarks that Win2k machines 
sometimes do this...   But mine has the lastest updates....

So I'm a little concerned.  Is this normal operation for a win2k machine, 
or could something more amiss be going on?    Norton Antivirus and SpyBot 
Search & Destory didn't find anything wrong.

Thanks

-Alex

(I realize this is probably a normal thing,  but I still find it 
disturbing)