# Fail2Ban configuration file. # # This file was composed for Debian systems from the original one # provided now under /usr/share/doc/fail2ban/examples/jail.conf # for additional examples. # # To avoid merges during upgrades DO NOT MODIFY THIS FILE # and rather provide your changes in /etc/fail2ban/jail.local # # Author: Yaroslav O. Halchenko # # $Revision$ # # The DEFAULT allows a global definition of the options. They can be overridden # in each jail afterwards. [DEFAULT] # "ignoreip" can be an IP address, a CIDR mask or a DNS host ignoreip = 127.0.0.1/8 192.168.1.0/24 findtime = 86400 bantime = -1 maxretry = 3 # "backend" specifies the backend used to get files modification. Available # options are "gamin", "polling" and "auto". # yoh: For some reason Debian shipped python-gamin didn't work as expected # This issue left ToDo, so polling is default backend for now backend = auto # # Destination email address used solely for the interpolations in # jail.{conf,local} configuration files. destemail = root@localhost # # ACTIONS # # Default banning action (e.g. iptables, iptables-new, # iptables-multiport, shorewall, etc) It is used to define # action_* variables. Can be overridden globally or per # section within jail.local file banaction = iptables-multiport # email action. Since 0.8.1 upstream fail2ban uses sendmail # MTA for the mailing. Change mta configuration parameter to mail # if you want to revert to conventional 'mail'. mta = sendmail # Default protocol protocol = tcp # Specify chain where jumps would need to be added in iptables-* actions chain = INPUT # # Action shortcuts. To be used to define action parameter # The simplest action to take: ban only action_ = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] # ban & send an e-mail with whois report to the destemail. action_mw = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] %(mta)s-whois[name=%(__name__)s, dest="%(destemail)s", protocol="%(protocol)s", chain="%(chain)s"] # ban & send an e-mail with whois report and relevant log lines # to the destemail. action_mwl = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] %(mta)s-whois-lines[name=%(__name__)s, dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s"] # Choose default action. To change, just override value of 'action' with the # interpolation to the chosen action shortcut (e.g. action_mw, action_mwl, etc) in jail.local # globally (section [DEFAULT]) or per specific section action = %(action_)s # # JAILS # # Next jails corresponds to the standard configuration in Fail2ban 0.6 which # was shipped in Debian. Enable any defined here jail by including # # [SECTION_NAME] # enabled = true # # in /etc/fail2ban/jail.local. # # Optionally you may override any other parameter (e.g. banaction, # action, port, logpath, etc) in that section within jail.local [ssh] enabled = true port = ssh filter = sshd logpath = /var/log/auth.log [ssh-ddos] enabled = true port = ssh filter = sshd-ddos logpath = /var/log/auth.log # # HTTP servers # [nginx-auth] enabled = true filter = nginx-auth action = iptables-multiport[name=NoAuthFailures, port="http,https"] logpath = /var/log/nginx/*error*.log [nginx-login] enabled = false filter = nginx-login action = iptables-multiport[name=NoLoginFailures, port="http,https"] logpath = /var/log/nginx/*access*.log [nginx-badbots] enabled = true filter = apache-badbots action = iptables-multiport[name=BadBots, port="http,https"] logpath = /var/log/nginx/*access*.log maxretry = 1 [nginx-proxy] enabled = true action = iptables-multiport[name=NoProxy, port="http,https"] filter = nginx-proxy logpath = /var/log/nginx/*access*.log maxretry = 0 [nginx-dos] enabled = true port = http filter = nginx-dos logpath = /var/log/nginx/*access*.log findtime = 120 maxretry = 200