pwcheck_mysql is a authentication module for the Cyrus IMAP server. Currently the Cyrus IMAP server only supports kerberos, /etc/passwd and ldap (via Clayton Donely's pwcheck_ldap module). Now with pwcheck_mysql, you can use a MySQL database to authenticate your IMAP users. This code has been tested for many months and seems to work fairly well.
MySQL Backup is a Perl script that uses mysqlshow to grab the database names and "show tables" to grab the table names for a user's account, and then uses mysqldump to save the data in a subdirectory named in the script. It then tars and gzips the files, using the date and time for the file name. It can be run from cron on a daily basis. It removes old files and has an option to email the gzip file to an admin, and/or FTP the file to a remote server. It also has options to use "select data into outfile" or a regular "select" for users who can't use mysqldump. It supports LARGE sets of databases and tables.
MySQL-Formmaker is a tool for creating easy administration forms and output of data. You define your forms, types of input, order, and so on, and the system makes a database for you, along with the admin and output files. You can change the layout of the output files. MySQL field-types supported are INT, VARCHAR, TEXT, DATE, and DATETIME. Input fields supported are NONE, TEXT, TEXTAREA, RADIO, CHECKBOX, SELECT, and FILE-UPLOAD.