How To Install A Complete LEMP (Linux - EngineX (Nginx HTTP SERVER) - Mysql - PHP) Server On Ubuntu/Debian

This HowTo will describe the setup of an efficient http server and mail server for small or medium configurations (as low as 96 mb). Why LEMP instead of LAMP? NGINX is a great replacement for Apache with very low memory footprint and great stability. http://www.howtoforge.com/lemp_nginx_mysql_php_ubuntu_debian