File: //usr/share/doc/proftpd-doc/misc/mod_mysql.txt
This module is contained in the mod_mysql.c file, and is not compiled in
by default. It provides the backend support to connect to MySQL
databases.
MySQL Database Directives
=========================
MySQLInfo
---------
Syntax: MySQLInfo host user pass dbname
Default: none
Context: server config, virtual host
Configures the MySQL database driver (the database may be remote). A
connection isn't made until use of a SQL feature requires it, after
which it may be held open for the lifetime of the FTP session depending
on the directives in use. Use `""' to specify a null password.