From owner-svn-src-all@FreeBSD.ORG Sun Feb 20 20:18:28 2011 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A850E1065675 for ; Sun, 20 Feb 2011 20:18:28 +0000 (UTC) (envelope-from dougb@dougbarton.us) Received: from mail2.fluidhosting.com (mx22.fluidhosting.com [204.14.89.5]) by mx1.freebsd.org (Postfix) with ESMTP id 168068FC12 for ; Sun, 20 Feb 2011 20:18:27 +0000 (UTC) Received: (qmail 14006 invoked by uid 399); 20 Feb 2011 20:18:27 -0000 Received: from router.ka9q.net (HELO ?192.168.2.9?) (dougb@dougbarton.us@75.60.237.91) by mail2.fluidhosting.com with ESMTPAM; 20 Feb 2011 20:18:27 -0000 X-Originating-IP: 75.60.237.91 X-Sender: dougb@dougbarton.us Message-ID: <4D617713.1010705@dougbarton.us> Date: Sun, 20 Feb 2011 12:18:27 -0800 From: Doug Barton Organization: http://SupersetSolutions.com/ User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: "Philip M. Gollucci" References: <201102162123.p1GLN9f9084297@svn.freebsd.org> <4D6065B4.7040709@p6m7g8.com> <4D606FEB.6070806@dougbarton.us> <4D61461E.3000406@p6m7g8.com> In-Reply-To: <4D61461E.3000406@p6m7g8.com> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r218753 - head/etc/namedb X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Feb 2011 20:18:28 -0000 On 2/20/2011 8:49 AM, Philip M. Gollucci wrote: > On 2/19/2011 8:35 PM, Doug Barton wrote: >> On 02/19/2011 16:52, Philip M. Gollucci wrote: >>> On 2/16/2011 4:23 PM, Doug Barton wrote: >>>> Author: dougb >>>> Date: Wed Feb 16 21:23:09 2011 >>>> New Revision: 218753 >>>> URL: http://svn.freebsd.org/changeset/base/218753 >>>> >>>> Log: >>>> Remove in-addr.arpa from the list of zones it is possible to slave >>>> locally >>> This is b/c of the recent change to fix the list of root servers that >>> serve this right ? >> >> Not precisely. in-addr.arpa has moved to its own set of servers operated >> jointly by the RIRs and ICANN. At some point in the near future this >> zone will no longer be available directly from the root servers at all. > > We said the same thing, just I said it badly. Sorry to be pedantic, but it's for a (hopefully) good reason. People often refer to any servers high up in the tree as "the root servers for ..." There is actually only one set of root servers, the ones that serve the actual root zone. For hysterical raisins these servers also served ARPA, and IN-ADDR.ARPA. A little bit better job was done with IP6.ARPA to start with so it was the first to move from one set of servers managed by the RIRs and ICANN to a different set that are similarly named in order to take advantage of name compression in the DNS packet. IN-ADDR.ARPA is the next to move both for compression purposes, and to get the zone off the roots. So, not to pick on you here, my purpose is simply to clarify that they did not change "the list of root servers," they actually changed the delegation of IN-ADDR.ARPA to its own set of name servers. I should probably add that while it's technically possible, it's highly unlikely that ARPA itself will move off the roots. The zone is very small, and very static; and that is incredibly unlikely to change any time in the near future. The IN-ADDR and IP6.ARPA zones on the other hand are both larger, and more dynamic (although IN-ADDR is going to be changing less and less as time goes on). hth, Doug -- Nothin' ever doesn't change, but nothin' changes much. -- OK Go Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/