From owner-freebsd-isp Tue Jan 18 9:43: 2 2000 Delivered-To: freebsd-isp@freebsd.org Received: from gndrsh.dnsmgr.net (GndRsh.dnsmgr.net [198.145.92.4]) by hub.freebsd.org (Postfix) with ESMTP id C82D215330; Tue, 18 Jan 2000 09:42:57 -0800 (PST) (envelope-from freebsd@gndrsh.dnsmgr.net) Received: (from freebsd@localhost) by gndrsh.dnsmgr.net (8.9.3/8.9.3) id JAA48615; Tue, 18 Jan 2000 09:42:41 -0800 (PST) (envelope-from freebsd) From: "Rodney W. Grimes" Message-Id: <200001181742.JAA48615@gndrsh.dnsmgr.net> Subject: Re: New Firewall In-Reply-To: from Marius Strom at "Jan 18, 2000 10:28:44 am" To: marius@alpha1.net (Marius Strom) Date: Tue, 18 Jan 2000 09:42:41 -0800 (PST) Cc: oogali@intranova.net (Omachonu Ogali), briang@expnet.net (Brian Gallucci), isp@FreeBSD.ORG, freebsd-ipfw@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL54 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > Incidentally, you may want to allow (udp|tcp)/53 for DNS services inbound, > if that's necessary. ( It's fumbled many a new FW setup ) And is often done quite wrong. udp|tcp/53 is often used as a way around a firewall if the rules are not written correctly. See archive of this and other FreeBSD mailling lists for lots of discussion about how to and how not to do this correctly. ...[No need to quote the whole thing yet again....] -- Rod Grimes - KD7CAX @ CN85sl - (RWG25) rgrimes@gndrsh.dnsmgr.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message