fail2ban/config/filter.d/mysqld-auth.conf

# Fail2Ban configuration file for unsuccesfull MySQL authentication attempts
#
# Authors: Artur Penttinen
#          Yaroslav O. Halchenko
#

[INCLUDES]

# Read common prefixes. If any customizations available -- read them from
# common.local
before = common.conf


[Definition]

_daemon = mysqld

# Option:  failregex
# Notes.:  regex to match the password failures messages in the logfile. The
#          host must be matched by a group named "host". The tag "<HOST>" can
#          be used for standard IP/hostname matching and is only an alias for
#          (?:::f{4,6}:)?(?P<host>[\w\-.^_]+)
# Values:  TEXT
# 130322 11:26:54 [Warning] Access denied for user 'root'@'127.0.0.1' (using password: YES)
#
failregex = ^%(__prefix_line)s(\d{6} \s?\d{1,2}:\d{2}:\d{2} )?\[Warning\] Access denied for user '\w+'@'<HOST>' (to database '[^']*'|\(using password: (YES|NO)\))*\s*$

# Option:  ignoreregex
# Notes.:  regex to ignore. If this regex matches, the line is ignored.
# Values:  TEXT
#
ignoreregex =