Date: Wed, 16 Jul 2008 23:50:22 -0500 From: Paul Schmehl <pschmehl_lists@tx.rr.com> To: stable@freebsd.org Subject: Re: named.conf: query-source address Message-ID: <AD9D625B505B0585FEFFB967@Macintosh.local> 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>
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--==========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 <cswiger@mac.com> 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==========--
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