From owner-freebsd-stable@FreeBSD.ORG Wed Feb 23 08:49:42 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9189C16A4CE for ; Wed, 23 Feb 2005 08:49:42 +0000 (GMT) Received: from vs3.bgnett.no (vs3.bgnett.no [194.54.96.185]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6F30143D54 for ; Wed, 23 Feb 2005 08:49:41 +0000 (GMT) (envelope-from peter@bgnett.no) Received: from amidala.datadok.no.bgnett.no (amidala.datadok.no [194.54.103.98]) by vs3.bgnett.no (8.12.9p2/8.12.9) with ESMTP id j1N8nXBM041157; Wed, 23 Feb 2005 09:49:33 +0100 (CET) (envelope-from peter@bgnett.no) Sender: peter@amidala.datadok.no To: freebsd-stable@freebsd.org, Remo.Lacho@verizon.net, Juergen.Dankoweit@T-Online.de References: <421821C7.6090308@forrie.com> From: peter@bgnett.no (Peter N. M. Hansteen) Date: 23 Feb 2005 09:48:12 +0100 In-Reply-To: <421821C7.6090308@forrie.com> Message-ID: <86d5urd5mb.fsf@amidala.datadok.no> Lines: 20 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-bgnett.no-virusscanner: Found to be clean X-Envelope-To: freebsd-stable@freebsd.org, juergen.dankoweit@t-online.de, remo.lacho@verizon.net Subject: Re: Tarpitting Spam Traffic using PF... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Feb 2005 08:49:42 -0000 Forrest Aldrich writes: > I read about the spamd redirect in pf.conf. PF's spamd works rather well, but it will never be better than the weakest data source. spamd does greylisting as well, which I think is possibly quite as useful as the tarpitting in stopping spam from entering your system. Then again, the tarpitting part is sometimes a bit entertaining at least. My take on this with some comments on our experience here can be found at http://www.bgnett.no/~peter/pf/en/spamd.html, which is part of my pf tutorial (starting at http://www.bgnett.no/~peter/pf/en/ or http://www.bgnett.no/~peter/pf/no/ if your Norwegian is better than your English) -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team http://www.blug.linux.no/rfc1149/ http://www.datadok.no/ http://www.nuug.no/ "First, we kill all the spammers" The Usenet Bard, "Twice-forwarded tales"