The proftpd(8) daemon reads its configuration file, typically stored in one of the following locations:
/etc/proftpd.conf
/etc/proftpd/proftpd.conf
/usr/local/etc/proftpd.conf
The proftpd.conf configuration file contains directives , one per line. Lines starting with # and empty lines are comments and are ignored. Directives are case-insensitive, whereas values are case-sensitive. Values may be enclosed in double-quotes (") if they contain spaces.
The possible directives and their descriptions are described online at http://www.proftpd.org/docs/directives/linked/by-name.html
ProFTPD is written and maintained by a number of people, full credits can be found on http://www.proftpd.org/credits.html
Full documentation on ProFTPD, including configuration and FAQs, is available at http://www.proftpd.org/
For help/support, try the ProFTPD mailing lists, detailed on http://www.proftpd.org/lists.html
Report bugs at http://bugs.proftpd.org/