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I am looking at using Apache's rewrite and proxy modules to provide a means of load sharing and resilience by randomly choosing from a cluster of mirrored servers.
I have understood (I think ;) the way to do it, but I suddenly had an awful thought: will this be detectable in any way to SEs ie will the http responses be any different?
I do not use cloaking as our rankings are mainly based on theming and link pop, so I'd hate to set any alarm bells ringing, as I understand that mod_rewrite is widely used for cloaking?
I'd hugely welcome any comments from anyone who's attempted this kind of thing.
The rewrite method seems like a nice solution which I plan to finesse with dual proxies amd scripts to enable selection of only 'alive' servers etc.
Has anyone had any experience with the DNS methods mentioned?