HowToForge presents How To Install A Complete LEMP On Ubuntu/Debian. From the article: This HowTo will describe the setup of an efficient http server and mail server for small or medium configurations (as low as 96 mb). So this config is ideal for a small VPS. Why LEMP instead of LAMP? NGINX (engine x - see www.nginx.net) is a great replacement for Apache with very low memory footprint and great stability.