Date: Thu, 17 Jul 2008 22:00:18 +0800 From: Eugene Grosbein <eugen@kuzbass.ru> To: Chuck Swiger <cswiger@mac.com> Cc: stable@freebsd.org Subject: Re: named.conf: query-source address Message-ID: <20080717140018.GA91530@svzserv.kemerovo.su> 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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On Wed, Jul 16, 2008 at 09:06:33PM -0700, Chuck Swiger wrote: > >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... Think about multiple IP-based services (not HTTP "virtual" servers) at one physical host that should use distinct IP addresses for some reasons (local policy/billing/monitoring/etc.) Eugene Grosbein
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