DNS Ports

[Dave Harman]

Thank you for your reply, but a simple statement
that I have to "un-learn" this is not much informatin.
As to "see the web page for details" - what web page ?

As to being wrong, both "Linux Firewalls 2nd edition" and
O'Reilly's "DNS and BIND" discuss this and both agree
queries and responses are sent and received by UDP and
TCP is used only is UDP size is exceeded.

Dave Harman

-----Original Message-----
From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org]On
Behalf Of Jonathan de Boyne Pollard
Sent: Monday, July 21, 2003 2:27 PM
To: comp-protocols-dns-bind at isc.org
Subject: Re: DNS Ports


DH> I am setting up Iptables [...]

<URL:http://homepages.tesco.net./~J.deBoynePollard/FGA/dns-shaped-firewall-h
oles.html>

DH> I know DNS uses UDP to send and get data.

You need to un-learn this, because it is wrong.  See the
web page for details.