fail2ban/config/filter.d/xinetd-fail.conf

# Fail2Ban configuration file
#
# Author: Guido Bozzetto
#
#

[Definition]

# 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
#
# Cfr.: /var/log/(daemon\.|sys)log
# libwrap => tcp wrappers: hosts.(allow|deny)
# address => xinetd: deny_from|only_from
# load => xinetd: max_load (temporary problem)
#

failregex = xinetd(?:\[\d{1,5}\])?: FAIL: \S+ address from=<HOST>$
            xinetd(?:\[\d{1,5}\])?: FAIL: \S+ libwrap from=<HOST>$

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