~/.ftpaccess

Provides an additional control mechanism for each virtual host. The file should be placed in the home directory for the virtual host. See http://www.castaglia.org/proftpd/doc/devel-guide/internals/ftpaccess.html for more information.

/etc/proftpd.conf

Includes most of the configuration parameters that need to be defined in order for the ProFTPD service to function.

/etc/shutmsg

Includes information used by the ftpshut command.

/etc/ftpd/ftpusers

Lists the users to be disallowed FTP login privileges. Provided for backward compatibility with the wu-ftpd service.

/var/log/xferlog

Lists log information for ProFTPD.

/var/run/proftpd.scoreboard

Includes tracking information for each current session, which is used by commands like ftpcount, ftptop, and ftpwho. See http://www.proftpd.org/docs/howto/Scoreboard.html for more information.