From owner-freebsd-questions@FreeBSD.ORG Sat Jan 27 11:07:34 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id A1AFC16A402 for ; Sat, 27 Jan 2007 11:07:34 +0000 (UTC) (envelope-from peter@bsdly.net) Received: from skapet.datadok.no (skapet.datadok.no [194.54.107.19]) by mx1.freebsd.org (Postfix) with ESMTP id 5E72913C484 for ; Sat, 27 Jan 2007 11:07:34 +0000 (UTC) (envelope-from peter@bsdly.net) Received: from thingy.bsdly.net ([10.168.103.11] helo=thingy.datadok.no.bsdly.net ident=peter) by skapet.datadok.no with esmtp (Exim 4.62) (envelope-from ) id 1HAlPA-0001nh-K0 for freebsd-questions@freebsd.org; Sat, 27 Jan 2007 12:07:32 +0100 To: freebsd-questions@freebsd.org References: <200701261654.59814.pmatulis@sympatico.ca> From: peter@bsdly.net (Peter N. M. Hansteen) Date: Sat, 27 Jan 2007 12:07:31 +0100 In-Reply-To: <200701261654.59814.pmatulis@sympatico.ca> (Peter Matulis's message of "Fri, 26 Jan 2007 16:54:59 -0500") Message-ID: <87lkjosp70.fsf@thingy.datadok.no> User-Agent: Gnus/5.1007 (Gnus v5.10.7) XEmacs/21.4.19 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: thwarting repeated login attempts X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 27 Jan 2007 11:07:34 -0000 Peter Matulis writes: > You can run OpenBSD's pf in combination with authpf. This mechanism > will alter firewall rules based on successful SSH logins. authpf is great, but even overload rules can go a long way towards eliminating the original poster's problem, see eg the suggestions in my tutorial at http://home.nuug.no/~peter/pf/en/bruteforce.html (http://home.nuug.no/~peter/pf/ for the full manuscript in a variety of formats). -- 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" delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.