/etc/fail2ban/action.d/sendmail-lines.conf

sendmail-lines.conf

# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision$
#
# 詳見： 「fail2ban： 新手老手 root 網管都要練的金鐘罩」
# http://newtoypia.blogspot.tw/2016/04/fail2ban.html


[Definition]

# Option:  actionstart
# Notes.:  command executed once at the start of Fail2Ban.
# Values:  CMD
#
actionstart = printf %%b "Subject: [Fail2Ban] <name>: started
              Date: `date -u +"%%a, %%d %%h %%Y %%T +0000"`
              From: Fail2Ban <<sender>>
              To: <dest>\n
              Hi,\n
              The jail <name> has been started successfully.\n
              Regards,\n
              Fail2Ban" | /usr/sbin/sendmail -f <sender> <dest>

# Option:  actionstop
# Notes.:  command executed once at the end of Fail2Ban
# Values:  CMD
#
actionstop = printf %%b "Subject: [Fail2Ban] <name>: stopped
             Date: `date -u +"%%a, %%d %%h %%Y %%T +0000"`
             From: Fail2Ban <<sender>>
             To: <dest>\n
             Hi,\n
             The jail <name> has been stopped.\n
             Regards,\n
             Fail2Ban" | /usr/sbin/sendmail -f <sender> <dest>

# Option:  actioncheck
# Notes.:  command executed once before each actionban command
# Values:  CMD
#
actioncheck = 

# Option:  actionban
# Notes.:  command executed when banning an IP. Take care that the
#          command is executed with Fail2Ban user rights.
# Tags:    <ip>  IP address
#          <failures>  number of failures
#          <time>  unix timestamp of the ban time
# Values:  CMD
#
actionban = printf %%b "Subject: [Fail2Ban] <name>: banned <ip>
            Date: `date -u +"%%a, %%d %%h %%Y %%T +0000"`
            From: Fail2Ban <<sender>>
            To: <dest>\n
            Hi,\n
            The IP <ip> has just been banned by Fail2Ban after
            <failures> attempts against <name>.\n\n
            Lines containing IP:<ip> in <logpath>\n
            `/bin/grep '\<<ip>\>' <logpath>`\n\n
            Regards,\n
            Fail2Ban" | /usr/sbin/sendmail -f <sender> <dest>

# Option:  actionunban
# Notes.:  command executed when unbanning an IP. Take care that the
#          command is executed with Fail2Ban user rights.
# Tags:    <ip>  IP address
#          <failures>  number of failures
#          <time>  unix timestamp of the ban time
# Values:  CMD
#
actionunban = 

[Init]

# Defaut name of the chain
#
name = default

# Destination/Addressee of the mail
#
dest = root

# Sender of the mail
#
sender = fail2ban

# Path to the log files which contain relevant lines for the abuser IP
#
logpath = /dev/null