You can edit
vsftpd.conf to enable, disable, and configure many features and settings of the
vsftpd server, such as user access, filtering of bogus passwords, and access logging. Some features might require the creation and configuration of other files, such as the following:
/etc/vsftpd.user_list—Used by the
userlist_enable and the
userlist_deny options; the file contains a list of usernames to be denied access to the server.
/etc/vsftpd.chroot_list—Used by the
chroot_local_user options, ...