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Building a Web Cluster with FreeSBIE (O'ReillyNet)

O'ReillyNet uses a FreeBSD-based live CD to build a cluster. "Suppose that we need to build a cluster of web servers to serve HTTP and HTTPS connections. Why do we need a cluster? First of all, our web services are heavily loaded and having one or two CPU systems and a lot of RAM is not enough anymore. Secondly, our services need 24x7 availability and this requires an excellent fail-over backup system, which should be completely transparent for customers and normal web surfers. Nobody cares how many servers and sites we have; everyone only wants to see the requested web page."
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