164 lines
5.2 KiB
Plaintext
164 lines
5.2 KiB
Plaintext
# 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.
|
|
#
|
|
# Comments: use '#' for comment lines and ';' for inline comments
|
|
#
|
|
# To avoid merges during upgrades DO NOT MODIFY THIS FILE
|
|
# and rather provide your changes in /etc/fail2ban/jail.local
|
|
#
|
|
|
|
# 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. Fail2ban will not
|
|
# ban a host which matches an address in this list. Several addresses can be
|
|
# defined using space separator.
|
|
ignoreip = 127.0.0.1/8
|
|
|
|
# "bantime" is the number of seconds that a host is banned.
|
|
bantime = 10800
|
|
|
|
# A host is banned if it has generated "maxretry" during the last "findtime"
|
|
# seconds.
|
|
findtime = 10800
|
|
maxretry = 3
|
|
|
|
# "backend" specifies the backend used to get files modification.
|
|
# Available options are "pyinotify", "gamin", "polling" and "auto".
|
|
# This option can be overridden in each jail as well.
|
|
#
|
|
# pyinotify: requires pyinotify (a file alteration monitor) to be installed.
|
|
# If pyinotify is not installed, Fail2ban will use auto.
|
|
# gamin: requires Gamin (a file alteration monitor) to be installed.
|
|
# If Gamin is not installed, Fail2ban will use auto.
|
|
# polling: uses a polling algorithm which does not require external libraries.
|
|
# auto: will try to use the following backends, in order:
|
|
# pyinotify, gamin, polling.
|
|
backend = gamin
|
|
|
|
# "usedns" specifies if jails should trust hostnames in logs,
|
|
# warn when reverse DNS lookups are performed, or ignore all hostnames in logs
|
|
#
|
|
# yes: if a hostname is encountered, a reverse DNS lookup will be performed.
|
|
# warn: if a hostname is encountered, a reverse DNS lookup will be performed,
|
|
# but it will be logged as a warning.
|
|
# no: if a hostname is encountered, will not be used for banning,
|
|
# but it will be logged as info.
|
|
usedns = warn
|
|
|
|
#
|
|
# Destination email address used solely for the interpolations in
|
|
# jail.{conf,local} configuration files.
|
|
destemail = root@localhost
|
|
|
|
#
|
|
# Name of the sender for mta actions
|
|
sendername = Fail2Ban
|
|
|
|
#
|
|
# 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", sendername="%(sendername)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", sendername="%(sendername)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
|
|
#
|
|
|
|
[ssh]
|
|
|
|
enabled = true
|
|
port = ssh
|
|
filter = sshd
|
|
logpath = /var/log/auth.log
|
|
maxretry = 6
|
|
|
|
#
|
|
# Mail servers
|
|
#
|
|
|
|
[postfix]
|
|
|
|
enabled = true
|
|
port = smtp,ssmtp,submission
|
|
filter = postfix
|
|
logpath = /var/log/mail/mail.log
|
|
|
|
#
|
|
# Mail servers authenticators: might be used for smtp,ftp,imap servers, so
|
|
# all relevant ports get banned
|
|
#
|
|
|
|
[sasl]
|
|
|
|
enabled = true
|
|
port = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s
|
|
filter = postfix-sasl
|
|
# You might consider monitoring /var/log/mail.warn instead if you are
|
|
# running postfix since it would provide the same log lines at the
|
|
# "warn" level but overall at the smaller filesize.
|
|
logpath = /var/log/mail/mail.log
|
|
|
|
[dovecot]
|
|
|
|
enabled = true
|
|
port = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s
|
|
filter = dovecot
|
|
logpath = /var/log/mail/mail.log
|
|
|
|
# Jail for more extended banning of persistent abusers
|
|
# !!! WARNING !!!
|
|
# Make sure that your loglevel specified in fail2ban.conf/.local
|
|
# is not at DEBUG level -- which might then cause fail2ban to fall into
|
|
# an infinite loop constantly feeding itself with non-informative lines
|
|
[recidive]
|
|
|
|
enabled = false
|
|
filter = recidive
|
|
logpath = /var/log/fail2ban.log
|
|
action = iptables-allports[name=recidive]
|
|
sendmail-whois-lines[name=recidive, logpath=/var/log/fail2ban.log]
|
|
bantime = 10800
|
|
findtime = 10800
|
|
maxretry = 5
|