Date: Thu, 2 Dec 1999 09:50:36 -0600 (CST) From: Kevin Day <toasty@dragondata.com> To: aLan@fil.net (aLan Tait) Cc: freebsd-isp@FreeBSD.ORG (freebsd-isp@FreeBSD.ORG) Subject: Re: Chat Only??? Message-ID: <199912021550.JAA28909@celery.dragondata.com> In-Reply-To: <38468786.2A78E9EF@fil.net> from "aLan Tait" at Dec 02, 1999 10:51:50 PM
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> > My partner wants us to offer a "chat only" service (no http, > ftp, email) and I think I can do it with a simple filter, > but am having a bit of a time locating the filter info. > TCP/UDP and port info??? This is what I have... > > IRC TCP ports 6659-6670 and 7000 > > ICQ UDP port 4000 (Any others? No TCP?) > > Freetel Maybe TCP port 30000??? > You'll find ircd on all sorta ports, but yeah, you'll need to give them at least ports 6659-6670. Also make sure that ircd can connect back to their identd port. This will prevent irc/icq users from transferring files between each other though, since the clients negotiate random port numbers. You know this really won't stop someone from using other services as well. I could bind a socks proxy or PPP over TCP link to a port in that range, and do whatever I wanted. :) Kevin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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