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Date:      Sat, 17 Jan 1998 13:14:40 +1100 (EST)
From:      "Daniel O'Callaghan" <danny@panda.hilink.com.au>
To:        Ernie Elu <ernie@spooky.eis.net.au>
Cc:        freebsd-isp@FreeBSD.ORG
Subject:   Re: Distributed Proxy Servers
Message-ID:  <Pine.BSF.3.91.980117131139.29251L-100000@panda.hilink.com.au>
In-Reply-To: <199801170158.LAA13530@spooky.eis.net.au>

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On Sat, 17 Jan 1998, Ernie Elu wrote:

> Is there a technique, that does not require special hardware, for
> distibuting the load across 2 or more FreeBSD servers running squid?
> 
> eg. proxy.foobar.com is really a bunch of FreeBSD servers all running squid
> sharing the load.
> 
> Also an important feature would be if one of the servers goes down the others
> would take over the full load.

Allocate a bunch of IP addresses to proxy.foobar.com, by putting multiple 
A records into the DNS.

If the squids are all on the one ethernet, then you can arrange some 
program which detects that a proxy is down, and ifconfig alias its IP 
address onto a proxy which is OK.  ifconfig alias delete when the broken 
proxy is alive again.

Danny



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