fail2ban/config/action.d/hostsdeny.conf

# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision$
#

[Definition]

# Option:  fwstart
# Notes.:  command executed once at the start of Fail2Ban.
# Values:  CMD  Default:
#
actionstart = touch <tmpfile>

# Option:  fwend
# Notes.:  command executed once at the end of Fail2Ban
# Values:  CMD  Default:
#
actionstop = rm -f <tmpfile>

# Option:  fwcheck
# Notes.:  command executed once before each fwban command
# Values:  CMD  Default:
#
actioncheck = 

# Option:  fwban
# 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
#          <failtime>  unix timestamp of the last failure
#          <bantime>  unix timestamp of the ban time
# Values:  CMD
# Default: iptables -I INPUT 1 -s <ip> -j DROP
#
actionban = IP=<ip> &&
            echo "ALL: $IP" >> <file>

# Option:  fwunban
# Notes.:  command executed when unbanning an IP. Take care that the
#          command is executed with Fail2Ban user rights.
# Tags:    <ip>  IP address
#          <bantime>  unix timestamp of the ban time
#          <unbantime>  unix timestamp of the unban time
# Values:  CMD
# Default: iptables -D INPUT -s <ip> -j DROP
#
actionunban = IP=<ip> &&
              grep -v "ALL: $IP" <file> > <tmpfile> &&
              mv <tmpfile> <file>

[Init]

# Option:  file
# Notes.:  hosts.deny file path.
# Values:  STR  Default:  /etc/hosts.deny
#
file = /etc/hosts.deny

# Option:  file
# Notes.:  hosts.deny temporary file path.
# Values:  STR  Default:  /etc/hostsdeny.failban
#
tmpfile = /tmp/hosts.deny.tmp