From owner-freebsd-net Sun May 7 19:57:44 2000 Delivered-To: freebsd-net@freebsd.org Received: from smtp11.bellglobal.com (smtp11.bellglobal.com [204.101.251.53]) by hub.freebsd.org (Postfix) with ESMTP id D3F2537BBF8 for ; Sun, 7 May 2000 19:57:38 -0700 (PDT) (envelope-from cybernetik@sympatico.ca) Received: from jordan (HSE-Toronto-ppp90888.sympatico.ca [216.209.40.107]) by smtp11.bellglobal.com (8.8.5/8.8.5) with SMTP id XAA10000; Sun, 7 May 2000 23:03:39 -0400 (EDT) Message-ID: <000d01bfb899$1ebd6920$1021fea9@sympatico.ca> From: "Jordan Blanchard" To: "Jan Koum" Cc: References: <20000506162221.B45391@ethereal.net> <20000507163857.A92100@ethereal.net> Subject: Re: possible /etc/rc.firewall bug? Date: Sun, 7 May 2000 22:57:16 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2615.200 X-MIMEOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org may I asked how you have web working without a proxy program??? I've got freebsd 4.0 running and I have never been able to get web working without a proxy program, everything else works just not web! ----- Original Message ----- From: Jan Koum To: Joshua Goodall Cc: Sent: Sunday, May 07, 2000 7:38 PM Subject: Re: possible /etc/rc.firewall bug? > > i don't need a fix that works for me -- i can figure out how to make > things work. i'd like someone to commit change i describe below (either > giving natd rule assignment of 50 or going away from numbers all together > in rc.firewall and let ipfw do internal number assignments) > > it's a very simple fix. i don't know why nobody commited it yet. > > > On Sun, May 07, 2000 at 05:00:20PM +0200, Joshua Goodall wrote: > > > > This is a "known problem". Since the implications compromise natd > > security, it should have been fixed. However, it isn't in the latest > > 4.0-STABLE. > > > > There is a potential fix that may work for you. See > > > > http://www.freebsd.org/cgi/query-pr.cgi?pr=13769 > > > > but beware the warnings about making your firewall "weak". The resulting > > firewall ruleset should provide a basis for a stronger configuration. > > > > -- > > Joshua Goodall > > IP Systems Engineer - InterXion - http://www.InterXion.com/ > > > > On Sat, 6 May 2000, Jan Koum wrote: > > > > > > > > i just noticed something. if you setup natd and ipfw, you end up with: > > > > > > # ipfw -a l > > > 00100 677369 166815520 divert 8668 ip from any to any via ed0 > > > 00100 397358 45078874 allow ip from any to any via lo0 > > > 00200 0 0 deny ip from any to 127.0.0.0/8 > > > 65000 1709011 373169093 allow ip from any to any > > > 65535 0 0 deny ip from any to any > > > > > > two rules with number 100 -- i suggest moving divert rule to 50 by changing > > > > > > ${fwcmd} add divert natd all from any to any via ${natd_interface} > > > > > > to: > > > > > > ${fwcmd} add 50 divert natd all from any to any via ${natd_interface} > > > > > > > > > of course another way to do this is to remove #'s from following rules: > > > ${fwcmd} add 100 pass all from any to any via lo0 > > > ${fwcmd} add 200 deny all from any to 127.0.0.0/8 > > > > > > > > > thanks, > > > > > > -- yan > > > > > > > > > p.s. - this is 4.0 box with rc.firewall: > > > # $FreeBSD: src/etc/rc.firewall,v 1.30 2000/02/06 19:24:37 paul Exp $ > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-net" in the body of the message > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-net" in the body of the message > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message