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Date:      Sun, 9 Mar 2003 09:38:49 +0100 (CET)
From:      Dirk-Willem van Gulik <dirkx@webweaving.org>
To:        Aaron Burke <aburke@nullplusone.com>
Cc:        Jonas Fornander <jonas@netwood.net>, <freebsd-questions@FreeBSD.ORG>
Subject:   RE: Mirroring/load-balance two servers
Message-ID:  <Pine.OSX.4.44.0303090936510.782-100000@mobile.webweaving.org>
In-Reply-To: <AMEMKJNMFLJCJDLFIEDBKEDDCKAA.aburke@nullplusone.com>

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> www	IN	CNAME	12.34.56.78
> www	IN	CNAME	9.10.11.12
> www	IN	CNAME	65.4.3.21

Those should be 'A's. And you propably want a *short* livetime.

> The DNS standard will give out a different address for every

This is a particular feature of ICS (www.isc.org) their BIND named
distribution; not part of any standard.

You propably also want to look at Dynamic DNS update or Secure Dynamic DNS
update in conjuction with snmp or some other actiev probing; as to mask
out non responding addresses within a few time-to-live intervals. Typical
propbing rates are livetime/2 sort of rates.

Dw


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