From owner-freebsd-stable@FreeBSD.ORG Thu Jul 17 05:20:43 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6071A106566C for ; Thu, 17 Jul 2008 05:20:43 +0000 (UTC) (envelope-from prvs=pschmehl_lists=077d5c74c@tx.rr.com) Received: from ip-relay-002.utdallas.edu (ip-relay-002.utdallas.edu [129.110.20.112]) by mx1.freebsd.org (Postfix) with ESMTP id 1062B8FC18 for ; Thu, 17 Jul 2008 05:20:42 +0000 (UTC) (envelope-from prvs=pschmehl_lists=077d5c74c@tx.rr.com) X-Group: RELAYLIST X-IronPort-AV: E=Sophos;i="4.31,201,1215406800"; d="scan'208";a="3855782" Received: from smtp3.utdallas.edu ([129.110.20.110]) by ip-relay-002.utdallas.edu with ESMTP; 16 Jul 2008 23:50:28 -0500 Received: from [192.168.2.102] (cpe-24-175-90-48.tx.res.rr.com [24.175.90.48]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp3.utdallas.edu (Postfix) with ESMTPSA id A9BD023DE3 for ; Wed, 16 Jul 2008 23:50:28 -0500 (CDT) Date: Wed, 16 Jul 2008 23:50:22 -0500 From: Paul Schmehl To: stable@freebsd.org Message-ID: In-Reply-To: <8DFF6DCD-6619-4251-9944-59CED8DF1B19@mac.com> References: <20080716162042.GA27666@svzserv.kemerovo.su> <487E312E.9090307@infracaninophile.co.uk> <20080717035155.GA81536@svzserv.kemerovo.su> <8DFF6DCD-6619-4251-9944-59CED8DF1B19@mac.com> X-Mailer: Mulberry/4.0.8 (Mac OS X) X-Munged-Reply-To: To reply - figure it out MIME-Version: 1.0 Content-Type: multipart/signed; micalg=sha1; protocol="application/pkcs7-signature"; boundary="==========899942BC5B8F7BB3F1F4==========" X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Subject: Re: named.conf: query-source address X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Paul Schmehl List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Jul 2008 05:20:43 -0000 --==========899942BC5B8F7BB3F1F4========== Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: quoted-printable Content-Disposition: inline --On July 16, 2008 9:06:33 PM -0700 Chuck Swiger wrote: > On Jul 16, 2008, at 8:51 PM, Eugene Grosbein wrote: >> On Wed, Jul 16, 2008 at 06:34:38PM +0100, Matthew Seaman wrote: >>> The 'query-source' options don't have to be specified: the system >>> will just choose some appropriate address according to the state of >>> the routing table. 'query-source' to set the source /IP/ is really >>> only useful in some specific server configurations with several alias >>> addresses any of which could be used. That's pretty rare really. >> >> Isn't this common to have multiple aliases at an interface? >> Sometimes only one of them should be used for all DNS traffic. > > About the only common reason to set up multiple aliases on an interface > is when you're doing something like hosting multiple SSL webservers on a > single box which actually need to have distinct IPs as a consequence. > Other than that, using public IPs for aliases is usually wasteful of IP > address space. YMMV... > I would have thought that the most common reason for setting up multiple=20 aliases on an interface was for hosting multiple domains on a single=20 server. At least that's why I do it. Paul Schmehl If it isn't already obvious, my opinions are my own and not those of my employer. --==========899942BC5B8F7BB3F1F4==========--