fail2ban/config/filter.d/pure-ftpd.conf

# Fail2Ban configuration file
#
# Author: Cyril Jaquier
# Modified: Yaroslav Halchenko for pure-ftpd
#
#

[Definition]

# Error message specified in multiple languages
__errmsg = (?:Authentication failed for user|Erreur d'authentification pour l'utilisateur)

#
# 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
#
failregex = pure-ftpd(?:\[\d+\])?: \(.+?@<HOST>\) \[WARNING\] %(__errmsg)s \[.+\]\s*$

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