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Right now, the lighttpd web server is all the rage with Ruby on Rails people, PHP people, and excellent hosting providers. Why is this? Because lighttpd is extremely lightweight, has a small footprint, scales like nobody’s business, and is fast fast fast. The internals of lighttpd are really interesting, using kqueue and other fancy asynchronous networking operating system support to really put Apache to shame. But, the internals of lighttpd are a topic for another day…