http://www.lowth.com/p2pwall will block kazaa using iptables "QUEUE" target, if that's what you're after.

It's written up in the October 2003 issue of the Linux Journal (www.linuxjournal.com)

----- Original Message -----

From: Jeffrey Laramie

To: ksmith@perfht.com

Cc: netfilter@lists.netfilter.org

Sent: Wednesday, September 10, 2003 7:34 PM

Subject: Re: Kazaa Ports

Kevin Smith wrote:
I found this web site with a bit on info about Blocking p2p programs.:

http://testweb.oofle.com/messaging/index.htm

Hope it helps. 

Kev
  
Thanks to everyone for their suggestions. I've got my resident Kazaa experts (aka children) doing some research on this also. This may take a few days, so stay tuned.

Jeff