From owner-freebsd-security Tue Nov 2 13:13:49 1999 Delivered-To: freebsd-security@freebsd.org Received: from ns.mt.sri.com (ns.mt.sri.com [206.127.79.91]) by hub.freebsd.org (Postfix) with ESMTP id 0C0DC14C35 for ; Tue, 2 Nov 1999 13:13:44 -0800 (PST) (envelope-from nate@mt.sri.com) Received: from mt.sri.com (rocky.mt.sri.com [206.127.76.100]) by ns.mt.sri.com (8.9.3/8.9.3) with SMTP id OAA02734; Tue, 2 Nov 1999 14:13:43 -0700 (MST) (envelope-from nate@rocky.mt.sri.com) Received: by mt.sri.com (SMI-8.6/SMI-SVR4) id OAA25375; Tue, 2 Nov 1999 14:13:42 -0700 Date: Tue, 2 Nov 1999 14:13:42 -0700 Message-Id: <199911022113.OAA25375@mt.sri.com> From: Nate Williams MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Adam Laurie Cc: Group Paranoia Subject: Re: hole(s) in default rc.firewall rules In-Reply-To: <381F4AAD.1D8E6001@algroup.co.uk> References: <381F4AAD.1D8E6001@algroup.co.uk> X-Mailer: VM 6.34 under 19.16 "Lille" XEmacs Lucid Reply-To: nate@mt.sri.com (Nate Williams) Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > # block low port and NFS UDP but allow outgoing and replies for DNS, > NTP > # (and anything else that needs it). > $fwcmd add pass udp from any to ${ip} 53,123 > $fwcmd add deny udp from any to ${ip} 0-1023,1110,2049 What's special about 1110 and 2049? Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message