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Date:      Sun, 7 May 2000 22:57:16 -0400
From:      "Jordan Blanchard" <cybernetik@sympatico.ca>
To:        "Jan Koum" <jkb@ethereal.net>
Cc:        <freebsd-net@FreeBSD.ORG>
Subject:   Re: possible /etc/rc.firewall bug?
Message-ID:  <000d01bfb899$1ebd6920$1021fea9@sympatico.ca>
References:  <20000506162221.B45391@ethereal.net><Pine.BSF.4.21.0005071654320.18861-100000@juice.shallow.net> <20000507163857.A92100@ethereal.net>

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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 <jkb@ethereal.net>
To: Joshua Goodall <joshua@roughtrade.net>
Cc: <freebsd-net@FreeBSD.ORG>
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
<joshua@roughtrade.net> 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 <joshuag@interxion.com>
> > 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 $
> > >
> > >
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> > > 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
>
>
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>



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