Pure-FTPd is a fast, production-quality, standard-conformant FTP server, based
upon Troll-FTPd.

Unlike other popular FTP servers, it's designed to be secure in default
configuration, has no known buffer overflow, it is really trivial to set up and
it is especially designed for modern kernels.

Features include PAM support, IPv6, chroot()ed home directories, virtual
domains, built-in 'ls', anti-warez system, configurable ports for passive
downloads, FXP protocol, bandwidth throttling, ratios, LDAP, customizable SQL,
fortune files, Apache-like log files, fast standalone mode, text / HTML / XML
real-time status report, virtual users, virtual quotas, privilege separation and
more.

WWW: http://www.pureftpd.org/
WWW: https://github.com/jedisct1/pure-ftpd