Date: Tue, 28 Jun 2005 22:55:44 -0500 From: "Matthew D. Fuller" <fullermd@over-yonder.net> To: John Von Essen <john@essenz.com> Cc: freebsd-isp@freebsd.org Subject: Re: Thoughts on a large-scale DNS server... Message-ID: <20050629035544.GA50717@over-yonder.net> In-Reply-To: <20050628102618.J13559@beck.quonix.net> References: <20050628102618.J13559@beck.quonix.net>
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Just a few comments... On Tue, Jun 28, 2005 at 10:42:59AM -0400 I heard the voice of John Von Essen, and lo! it spake thus: > > The plan is to have 3 core machines. One is the master, and gets its > zone files created from local cvs exports. The other two are slaves, > and do zone transfers from the master. I've converted for most non-trivial configs to using external synchronization (rsync or rdist or the like, generally) instead of zone transfers. I'd just make them all 'masters' with their own local copies; that reduces your failure points (or at least moves them around a bit). > The first question is, do I have enough CPU/Memory. Keep in mind > these machines will nothing but DNS. CPU? Sure. Memory? Quite probably. Even if you assume each zone will eat 64k of memory (which I think it a terribly high guess; at least double what you'd really expect), 11,000 zones will burn less than 700 meg. I'd probably be tempted to double the memory, just because memory is cheap&easy, but I doubt you'll be hitting a wall on it. -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.
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