Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. The tutorial shows how you can install Lighttpd on an Ubuntu 9.10 server with PHP5 support (through FastCGI) and MySQL support.
The article describes the commands used to convert ip adresses to integers and vice versa. They can be used instead of character variables, because character variables don't sort correctly.
This article describes how to install a PureFTPd server that uses virtual users from a MySQL database instead of real system users. This is much more performant and allows to have thousands of ftp users on a single machine. The configuration, the use of quota and the upload/download bandwidth limits with this setup are showed.