Date: Tue, 27 Aug 2002 19:39:11 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: "Dan Mahoney, System Admin" <danm@prime.gushi.org> Cc: questions@FreeBSD.ORG Subject: Re: IP Change Message-ID: <20020827183911.GB10747@happy-idiot-talk.infracaninophi> In-Reply-To: <20020827130937.J49337-100000@prime.gushi.org> References: <20020827130937.J49337-100000@prime.gushi.org>
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On Tue, Aug 27, 2002 at 01:12:54PM -0400, Dan Mahoney, System Admin wrote:
> My upstream is making me change my IP addresses, and because of the DNS
> delay I was wondering if anyone knew a way to use ipfw to forward my old
> ip adresses internally onto my new ones (I can have them both configured
> at the same time, but eventually the old ones will not route).
You should be able to configure your system to run both sets of
addresses simultaneously --- install the new address as the primary
address on the interface and the old address as an alias.
> Most daemons listen on all ips so I don't particularly care. The one that
> worries me is apache, which will only answer certain request for certain
> vhosts on certain IP addresses.
That depends on the style of apache virtual host: IP v-hosts won't
play ball, but Name based virtual hosts shouldn't be a problem. You
probably don't need to use IP virtual hosts unless you're running
multiple HTTPS servers. Name virtual hosts should work fine if you
use the wild card:
NameVirtualHost *
in combination with running new and old addresses in parallel as
above.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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