vsftpd

Vsftpd is one of the most secure and fastest FTP servers for Linux. Usually vsftpd is configured to work with system users. This document describes how to install a vsftpd 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.

This document describes how to install a vsftpd server that uses virtual users from a PostgreSQL database instead of real system users. I could not find any tutorial like that on the internet, so when that configuration finally worked for me, I decided to publish it. The documentation is based on FreeBSD 6.2 which I was recently forced to use (I usually use Debian). Nevertheless the document should be suitable for almost any Linux distribution as well (may require very small amendments).