Re: Failover router ?
- From: ed <ed@xxxxxxxxxxx>
- Date: Wed, 30 Aug 2006 17:27:34 GMT
On 29 Aug 2006 05:54:37 -0700
"robert" <robertlazarski@xxxxxxxxx> wrote:
This may be OT but I am open to the idea of building a custom linux
router if need be ... We have an application that during 8am-5pm it
cannot fail. We want to use redundancy (not a cluster) should the main
machine fail, and on failure route everything to a backup perhaps on
another subnet. The big question is would we manually have to change
the routing rules? Or can a router detect the failure and re-route
automagically? I'm googling alot for routers and what I see is for
detecting internet failure, not so much just one machine on a subnet
failure.
1. make two routers that are identical routing/firewall tables
2. set the internal/external ips are IPVS (IP virtual server)
If I remember the IPVS (kernel module) should be a balancing protocol
that handles failover. If not, use Linux-HA to detect the failure and
shoot the other node in the head (STONITH).
Personally I use OpenBSD/carp to do the above, it just works easier for
me, but there's no reason why one cannot do the above with the above
methods, or similar.
--
Regards, Ed :: http://www.linuxwarez.co.uk
proud unix hacker
Upon Realizing how many lives it would take to defeat the Japanese in
WWII, Gerneral McArthur sent Mr.T and Chuck Noris plane tickets to a
Anime convention in Hiroshima. I think we all know what happened
next.
.
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