Pure-FTPd is a fast, production-quality, standard-conformant FTP server. It has no known root exploit, it is really trivial to set up and it is especially designed for modern operating systems.
GREAT ftp server on Linux,enjoy it
Great software, easy to use as all options are passed on the startup line of the binary. Easily installs on OS X with MacPorts. I do have trouble getting in contact with the developers.