From owner-freebsd-questions@FreeBSD.ORG Tue Aug 1 13:24:47 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 9C8D416A4DE for ; Tue, 1 Aug 2006 13:24:47 +0000 (UTC) (envelope-from xj2106@columbia.edu) Received: from serrano.cc.columbia.edu (serrano.cc.columbia.edu [128.59.29.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 19D0843D46 for ; Tue, 1 Aug 2006 13:24:46 +0000 (GMT) (envelope-from xj2106@columbia.edu) Received: from photon.homelinux.org (dyn-carl-201-40.dyn.columbia.edu [160.39.201.40]) (user=xj2106 mech=PLAIN bits=0) by serrano.cc.columbia.edu (8.13.7/8.13.6) with ESMTP id k71DOfrX018478 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Tue, 1 Aug 2006 09:24:46 -0400 (EDT) To: freebsd-questions@freebsd.org References: <20060728164526.E27679@ganymede.hub.org> <87slklj9hu.fsf@photon.homelinux.org> <20060729021007.F27679@ganymede.hub.org> <44CD41EC.6030605@freebsd.org> <20060730233839.I27679@ganymede.hub.org> <44CDAA98.3030702@freebsd.org> <44CDE02F.4090604@dial.pipex.com> <44CE7DD0.9070902@childeric.freeserve.co.uk> <871ws1v261.fsf@photon.homelinux.org> <20060731220830.B27679@ganymede.hub.org> From: Xiao-Yong Jin Mail-Followup-To: freebsd-questions@freebsd.org Date: Tue, 01 Aug 2006 09:24:41 -0400 In-Reply-To: (Nikolas Britton's message of "Tue, 1 Aug 2006 03:21:14 -0500") Message-ID: <87lkq8k2qu.fsf@photon.homelinux.org> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/23.0.0 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-No-Spam-Score: Local X-Scanned-By: MIMEDefang 2.48 on 128.59.29.6 Subject: Re: Gotta start somewhere ... how many of us are really out there? 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, 01 Aug 2006 13:24:47 -0000 "Nikolas Britton" writes: > Generating a unique anonymous key is easy, proving why we need it is not. > That's how we can tell the differences between server to server. > Ok, here it is, " ifconfig | sha256 | md5 ". 16^32 unique anonymous > keys. Every host needs to have a NIC to send results so all ifconfig > outputs will be different. Now... What does this solve and why do we > need to add 32 extra bytes? > I guess we are not suppose to generate the key from ifconfig, which will change in some circumstances. > (20 + 32) bytes * (10^7) = 495.910645 megabytes. The FreeBSD team > would need a 6.6Mbit/s uplink to handle peak load assuming 50% of the > hosts are set to UTC/GMT time and all trigger within 5 minutes of each > other.... I'm not going to pay for that connection. > That IS the problem. What about randomize it in a certain interval? > -- > BSD Podcasts @: > http://bsdtalk.blogspot.com/ > http://freebsdforall.blogspot.com/ > > -- Xiao-Yong