From owner-freebsd-pf@FreeBSD.ORG Fri Aug 11 13:52:55 2006 Return-Path: X-Original-To: freebsd-pf@freebsd.org Delivered-To: freebsd-pf@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 194C816A4DD for ; Fri, 11 Aug 2006 13:52:55 +0000 (UTC) (envelope-from peter@bgnett.no) Received: from skapet.datadok.no (skapet.datadok.no [194.54.107.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id B982043D5E for ; Fri, 11 Aug 2006 13:52:45 +0000 (GMT) (envelope-from peter@bgnett.no) Received: from amidala.datadok.no ([194.54.103.98] helo=amidala.datadok.no.bsdly.net ident=peter) by skapet.datadok.no with esmtp (Exim 4.60) (envelope-from ) id 1GBXRL-0006Jx-K3 for freebsd-pf@freebsd.org; Fri, 11 Aug 2006 15:52:43 +0200 To: freebsd-pf@freebsd.org References: <44DC3667.8020800@2012.vi> From: peter@bgnett.no (Peter N. M. Hansteen) Date: Fri, 11 Aug 2006 15:52:42 +0200 In-Reply-To: <44DC3667.8020800@2012.vi> (beno's message of "Fri, 11 Aug 2006 03:48:55 -0400") Message-ID: <87k65fbcr9.fsf@amidala.datadok.no> User-Agent: Gnus/5.1007 (Gnus v5.10.7) XEmacs/21.4.17 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: Spoofers, Spammers & Other Bad Guys X-BeenThere: freebsd-pf@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Technical discussion and general questions about packet filter \(pf\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Aug 2006 13:52:55 -0000 beno writes: > Hi; > I'm configuring my firewall and I'd like to make a table of "bad guys", > preferably one that automatically updates from the Web. Surely someone > else has already thought of this and implemented something similar, so > could someone clue me in? spamd uses a mechanism pretty much like you describe[1], and you can stop quite a lot of other silliness by crafting 'overload' rules[2]. [1] man spamd and http://www.bgnett.no/~peter/pf/en/spamd.html [2] http://www.bgnett.no/~peter/pf/en/bruteforce.html -- 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" 20:11:56 delilah spamd[26905]: 146.151.48.74: disconnected after 36099 seconds