redundancy

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Posted by shakybaky, 02-14-2012, 11:38 PM
I have three vps servers located in russia, amsterdam and kansas. All are running centos webmin on soluvus control panel. I am trying to setup these servers to be mirrors of one another and to failover to another if one is offline or slow. My questions are, would it be better to rsync the servers and then add all three vps to the dns? or would it be better to heartbeat them all and use the fastest one for the requests. Is there a dns service that can provide dns per location? Ie user in germany gets sent to amsterdam, userss in florida goto kansas? would it be better to use a dns service or setup another vps just for dns? Or should the other vps, hold a reverse proxy? Sorry about the newb questions. I might have got in over my head with this whole setup.. Last edited by shakybaky; 02-14-2012 at 11:47 PM.
Posted by locke815, 02-15-2012, 12:07 AM
I think you are talking about geoip location and redirect them to the nearest servers?
Posted by shakybaky, 02-15-2012, 12:13 AM
yes,plus a fail safe to forward the requests in case one of the servers goes down.
Posted by plumsauce, 02-15-2012, 02:54 AM
Yes. You can also combine it with failover such that, for example if Amsterdam fails, a user in France would be sent to the server in Russia. He gets a slower response, but at least he gets a response. If you are shaky on the concepts you would be best off with a service provider than doing it yourself. Especially if the provider will do the setup for you. Even those with the expertise to do it themselves are usually better off with a service provider because of cost and complexity. There is a big leap between theory and practice. ++
Posted by shakybaky, 02-19-2012, 01:15 PM
ended up using RewriteMap for geolocation. works very well but doesnt help if the local server fails

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