From owner-freebsd-questions@FreeBSD.ORG Tue Nov 14 07:39:20 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A317E16A407 for ; Tue, 14 Nov 2006 07:39:20 +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 3A14243D4C for ; Tue, 14 Nov 2006 07:39:20 +0000 (GMT) (envelope-from peter@bgnett.no) Received: from privnett.uib.no ([10.168.103.11] helo=thingy.datadok.no.bsdly.net ident=peter) by skapet.datadok.no with esmtp (Exim 4.60) (envelope-from ) id 1Gjst4-0004Bt-VF for freebsd-questions@freebsd.org; Tue, 14 Nov 2006 08:39:19 +0100 To: freebsd-questions@freebsd.org References: <4558D2A3.50904@locolomo.org> From: peter@bgnett.no (Peter N. M. Hansteen) Date: Tue, 14 Nov 2006 08:37:32 +0100 In-Reply-To: <4558D2A3.50904@locolomo.org> (Erik Norgaard's message of "Mon, 13 Nov 2006 21:16:35 +0100") Message-ID: <8764di7a2r.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: Blocking SSH Brute-Force Attacks: What Am I Doing Wrong? 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: Tue, 14 Nov 2006 07:39:20 -0000 Erik Norgaard writes: > Honestly, I wouldn't worry about it: review your config and make some > simple choices to reduce the noise, see this article: One other noise reduction method which is really easy to implement is to use pf and write arule set which to uses the overload feature, see eg http://home.nuug.no/~peter/pf/en/bruteforce.html (part of my EuroBSDCon and other places tutorial). See http://home.nuug.no/~peter/pf/ for a choice of formats and languages. -- 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