From owner-freebsd-hackers Sun Jun 1 22:21:09 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id WAA27536 for hackers-outgoing; Sun, 1 Jun 1997 22:21:09 -0700 (PDT) Received: from alpo.whistle.com (alpo.whistle.com [207.76.204.38]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id WAA27531 for ; Sun, 1 Jun 1997 22:21:07 -0700 (PDT) Received: (from daemon@localhost) by alpo.whistle.com (8.8.5/8.8.5) id WAA12656; Sun, 1 Jun 1997 22:20:16 -0700 (PDT) Received: from current1.whistle.com(207.76.205.22) via SMTP by alpo.whistle.com, id smtpd012654; Mon Jun 2 05:20:15 1997 Date: Sun, 1 Jun 1997 22:19:29 -0700 (PDT) From: Julian Elischer To: Harlan Stenn cc: hackers@FreeBSD.ORG Subject: Re: Improvements to rc.firewall? In-Reply-To: <1883.865221686@mumps.pfcs.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Sun, 1 Jun 1997, Harlan Stenn wrote: > These diffs are against the rc.firewall in -current. > > I believe the existing rules say: > > allow anybody from the outside who sends from port 53 or 123 to > send UDP packets to anyplace on our net > > If this is true, we should tighten it up ro only permit outsiders to > reach *our* DNS and NTP ports with UDP. > > These diffs *are intended* do the job... > [snip] check out the new ipfw options too. (in -current right now but being tested in 2.2.2 as we speak) julian