This walktrough is intended for a just provisioned clean Server/Slice/VPS, running Debian 4 Etch. (Ubuntu 7/8 should work as well). We are going to install a complete LEMP stack (Linux, EngineX, MySql, PHP), in order to run one or more wordpress blogs with the minimum memory footprint, and maximum performances.
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NginX and PHP will be compiled from Source as these are softwares with a very fast development, and pre-compiled packages are often prehistoric and are not suitable to apply custom patches (like php-Fpm).