Fault-tolerant Web hosting on a shoestringMay 11, 2007, 02:30 (0 Talkback[s])
(Other stories by Alaric Snell-Pym)
[ Thanks to Nobody for this link. ]
"When a Web server's hostname has more than one A record, a Web browser will end up being given one IP address from the list at random. So if you set up two identical servers, about half of the requests will go to each. This is great for load balancing, but if one of the servers goes down, then about half of the requests will be routed to the broken server, and just fail.
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