From owner-freebsd-security@FreeBSD.ORG  Sun Nov 27 07:12:48 2005
Return-Path: <owner-freebsd-security@FreeBSD.ORG>
X-Original-To: freebsd-security@freebsd.org
Delivered-To: freebsd-security@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 3DABB16A41F
	for <freebsd-security@freebsd.org>;
	Sun, 27 Nov 2005 07:12:48 +0000 (GMT)
	(envelope-from sirmoo@cowbert.2y.net)
Received: from cowbert.2y.net (d46h180.public.uconn.edu [137.99.46.180])
	by mx1.FreeBSD.org (Postfix) with SMTP id 8E6AE43D5C
	for <freebsd-security@freebsd.org>;
	Sun, 27 Nov 2005 07:12:47 +0000 (GMT)
	(envelope-from sirmoo@cowbert.2y.net)
Received: (qmail 4088 invoked by uid 1001); 27 Nov 2005 07:12:46 -0000
Date: Sun, 27 Nov 2005 02:12:46 -0500
From: "Peter C. Lai" <sirmoo@cowbert.2y.net>
To: Bitbucket <bitbuvket@dannysplace.net>
Message-ID: <20051127071246.GG326@cowbert.2y.net>
References: <Pine.LNX.4.63.0511210816460.26145@atlantis.flyingjoke.org>
	<Pine.BSF.4.44.0511211228040.91177-100000@home.fake.net>
	<20051121204239.GC326@cowbert.2y.net>
	<002601c5eef1$1f91b920$6501a8c0@llama>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <002601c5eef1$1f91b920$6501a8c0@llama>
User-Agent: Mutt/1.5.6i
Cc: freebsd-security@freebsd.org
Subject: Re: Need urgent help regarding security
X-BeenThere: freebsd-security@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Security issues \[members-only posting\]"
	<freebsd-security.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>, 
	<mailto:freebsd-security-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-security>
List-Post: <mailto:freebsd-security@freebsd.org>
List-Help: <mailto:freebsd-security-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>, 
	<mailto:freebsd-security-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 27 Nov 2005 07:12:48 -0000

On Tue, Nov 22, 2005 at 12:13:03AM +0100, Bitbucket wrote:
> > 
> > You can also couple this with port-knocking (or even just port-knocking 
> > on 22).
> 
> Just out of curiosity, has anyone implemented this in fbsd?
> I would love to implement this for my machines.
> 
> -D

doorman (doorman.sf.net) is in ports.
tumbler (tumbler.sf.net) was one of the original implementations discussed
in linux journal and dr. dobbs (and in perl, altho may require a perl pcap
module).
I haven't tried any of these myself, but you might find them interesting.
http://www.portknocking.org/view/implementations/implementations for an 
extensive listing.

-- 
Peter C. Lai
Dept. of Neurobiology | SenseLab
Yale University School of Medicine
http://cowbert.2y.net/