From owner-freebsd-questions@FreeBSD.ORG Wed Nov 24 15:30:40 2004 Return-Path: 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 49B4916A4CE for ; Wed, 24 Nov 2004 15:30:40 +0000 (GMT) Received: from lorna.circlesquared.com (host217-45-219-85.in-addr.btopenworld.com [217.45.219.85]) by mx1.FreeBSD.org (Postfix) with ESMTP id 73AA943D5C for ; Wed, 24 Nov 2004 15:30:39 +0000 (GMT) (envelope-from peter@circlesquared.com) Received: from [127.0.0.1] (localhost.circlesquared.com [127.0.0.1]) iAOFTH2p090081; Wed, 24 Nov 2004 15:29:18 GMT (envelope-from peter@circlesquared.com) Message-ID: <41A4A8CD.3020904@circlesquared.com> Date: Wed, 24 Nov 2004 15:29:17 +0000 From: Peter Risdon User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.3) Gecko/20041124 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Jonathon McKitrick References: <20041123233501.GA82229@dogma.freebsd-uk.eu.org> <5557305861.20041124004849@hexren.net> <20041124000014.GA83249@dogma.freebsd-uk.eu.org> <8763344284.20041124022927@hexren.net> <20041124141737.GA11648@dogma.freebsd-uk.eu.org> <5315017844.20041124160806@hexren.net> <20041124152355.GD11648@dogma.freebsd-uk.eu.org> In-Reply-To: <20041124152355.GD11648@dogma.freebsd-uk.eu.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-questions@freebsd.org cc: Hexren Subject: Re: 4 part domain names X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Nov 2004 15:30:40 -0000 Jonathon McKitrick wrote: > On Wed, Nov 24, 2004 at 04:08:06PM +0100, Hexren wrote: > : location. 510 could identify a rack or a datacenter so that > : us.510.mail.example.com means "a mail server in the datecenter with > : the id 510 which serves the United States". > > So 'us.510.mail' is an atomic, arbitrary identifier. All three as a unit > identify a certain node, and are selected purely for convenience of human > operators, right? > > I'm just making sure that the network doesn't treat 'us.510.mail' any > different than it would treat 'foobar', right? > No, I don't think this is right. mail can be a zone beneath example.com, 510 a zone beneath that and us a hostname. This host might be aliased to foobar.example.com but it doesn't have to be. Peter. -- the circle squared network systems and software http://www.circlesquared.com