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- # 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 safe.starbeamrainbowlabs.com
- # External command that will take an tagged arguments to ignore, e.g. <ip>,
- # and return true if the IP is to be ignored. False otherwise.
- #
- # ignorecommand = /path/to/command <ip>
- ignorecommand =
- # "bantime" is the number of seconds that a host is banned.
- # 1 hour
- bantime = 3600
- # A host is banned if it has generated "maxretry" during the last "findtime"
- # seconds.
- # 5 minutes
- findtime = 300
- maxretry = 5
- # "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 = auto
- # "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 = <email address>
- #
- # Name of the sender for mta actions
- sendername = Fail2Ban
- # Email address of the sender
- sender = <email address>
- #
- # 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_mwl)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 = 2403
- filter = sshd
- logpath = /var/log/auth.log
- maxretry = 5
- [dropbear]
- enabled = false
- port = ssh
- filter = dropbear
- logpath = /var/log/auth.log
- maxretry = 6
- # Generic filter for pam. Has to be used with action which bans all ports
- # such as iptables-allports, shorewall
- [pam-generic]
- enabled = false
- # pam-generic filter can be customized to monitor specific subset of 'tty's
- filter = pam-generic
- # port actually must be irrelevant but lets leave it all for some possible uses
- #port = all
- banaction = iptables-allports
- port = anyport
- logpath = /var/log/auth.log
- maxretry = 6
- [xinetd-fail]
- enabled = false
- filter = xinetd-fail
- port = all
- banaction = iptables-multiport-log
- logpath = /var/log/daemon.log
- maxretry = 2
- [ssh-ddos]
- enabled = false
- port = ssh
- filter = sshd-ddos
- logpath = /var/log/auth.log
- maxretry = 6
- # Here we use blackhole routes for not requiring any additional kernel support
- # to store large volumes of banned IPs
- [ssh-route]
- enabled = false
- filter = sshd
- action = route
- logpath = /var/log/sshd.log
- maxretry = 6
- # Here we use a combination of Netfilter/Iptables and IPsets
- # for storing large volumes of banned IPs
- #
- # IPset comes in two versions. See ipset -V for which one to use
- # requires the ipset package and kernel support.
- [ssh-iptables-ipset4]
- enabled = false
- port = ssh
- filter = sshd
- banaction = iptables-ipset-proto4
- logpath = /var/log/sshd.log
- maxretry = 6
- [ssh-iptables-ipset6]
- enabled = false
- port = ssh
- filter = sshd
- banaction = iptables-ipset-proto6
- logpath = /var/log/sshd.log
- maxretry = 6
- #
- # HTTP servers
- #
- [apache]
- enabled = false
- port = http,https
- filter = apache-auth
- logpath = /var/log/apache*/*error.log
- maxretry = 6
- # default action is now multiport, so apache-multiport jail was left
- # for compatibility with previous (<0.7.6-2) releases
- [apache-multiport]
- enabled = false
- port = http,https
- filter = apache-auth
- logpath = /var/log/apache*/*error.log
- maxretry = 6
- [apache-noscript]
- enabled = false
- port = http,https
- filter = apache-noscript
- logpath = /var/log/apache*/*error.log
- maxretry = 6
- [apache-overflows]
- enabled = false
- port = http,https
- filter = apache-overflows
- logpath = /var/log/apache*/*error.log
- maxretry = 2
- [apache-modsecurity]
- enabled = false
- filter = apache-modsecurity
- port = http,https
- logpath = /var/log/apache*/*error.log
- maxretry = 2
- [apache-nohome]
- enabled = false
- filter = apache-nohome
- port = http,https
- logpath = /var/log/apache*/*error.log
- maxretry = 2
- # Ban attackers that try to use PHP's URL-fopen() functionality
- # through GET/POST variables. - Experimental, with more than a year
- # of usage in production environments.
- [php-url-fopen]
- enabled = false
- port = http,https
- filter = php-url-fopen
- logpath = /var/www/*/logs/access_log
- # A simple PHP-fastcgi jail which works with lighttpd.
- # If you run a lighttpd server, then you probably will
- # find these kinds of messages in your error_log:
- # ALERT – tried to register forbidden variable ‘GLOBALS’
- # through GET variables (attacker '1.2.3.4', file '/var/www/default/htdocs/index.php')
- [lighttpd-fastcgi]
- enabled = false
- port = http,https
- filter = lighttpd-fastcgi
- logpath = /var/log/lighttpd/error.log
- # Same as above for mod_auth
- # It catches wrong authentifications
- [lighttpd-auth]
- enabled = false
- port = http,https
- filter = suhosin
- logpath = /var/log/lighttpd/error.log
- [nginx-http-auth]
- enabled = false
- filter = nginx-http-auth
- port = http,https
- logpath = /var/log/nginx/error.log
- # Monitor roundcube server
- [roundcube-auth]
- enabled = false
- filter = roundcube-auth
- port = http,https
- logpath = /var/log/roundcube/userlogins
- [sogo-auth]
- enabled = false
- filter = sogo-auth
- port = http, https
- # without proxy this would be:
- # port = 20000
- logpath = /var/log/sogo/sogo.log
- #
- # FTP servers
- #
- [vsftpd]
- enabled = false
- port = ftp,ftp-data,ftps,ftps-data
- filter = vsftpd
- logpath = /var/log/vsftpd.log
- # or overwrite it in jails.local to be
- # logpath = /var/log/auth.log
- # if you want to rely on PAM failed login attempts
- # vsftpd's failregex should match both of those formats
- maxretry = 6
- [proftpd]
- enabled = false
- port = ftp,ftp-data,ftps,ftps-data
- filter = proftpd
- logpath = /var/log/proftpd/proftpd.log
- maxretry = 6
- [pure-ftpd]
- enabled = false
- port = ftp,ftp-data,ftps,ftps-data
- filter = pure-ftpd
- logpath = /var/log/syslog
- maxretry = 6
- [wuftpd]
- enabled = false
- port = ftp,ftp-data,ftps,ftps-data
- filter = wuftpd
- logpath = /var/log/syslog
- maxretry = 6
- #
- # Mail servers
- #
- [postfix]
- enabled = false
- port = smtp,ssmtp,submission
- filter = postfix
- logpath = /var/log/mail.log
- [couriersmtp]
- enabled = false
- port = smtp,ssmtp,submission
- filter = couriersmtp
- logpath = /var/log/mail.log
- #
- # Mail servers authenticators: might be used for smtp,ftp,imap servers, so
- # all relevant ports get banned
- #
- [courierauth]
- enabled = false
- port = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s
- filter = courierlogin
- logpath = /var/log/mail.log
- [sasl]
- enabled = false
- 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.log
- [dovecot]
- enabled = false
- port = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s
- filter = dovecot
- logpath = /var/log/mail.log
- # To log wrong MySQL access attempts add to /etc/my.cnf:
- # log-error=/var/log/mysqld.log
- # log-warning = 2
- [mysqld-auth]
- enabled = false
- filter = mysqld-auth
- port = 3306
- logpath = /var/log/mysqld.log
- # DNS Servers
- # These jails block attacks against named (bind9). By default, logging is off
- # with bind9 installation. You will need something like this:
- #
- # logging {
- # channel security_file {
- # file "/var/log/named/security.log" versions 3 size 30m;
- # severity dynamic;
- # print-time yes;
- # };
- # category security {
- # security_file;
- # };
- # };
- #
- # in your named.conf to provide proper logging
- # !!! WARNING !!!
- # Since UDP is connection-less protocol, spoofing of IP and imitation
- # of illegal actions is way too simple. Thus enabling of this filter
- # might provide an easy way for implementing a DoS against a chosen
- # victim. See
- # http://nion.modprobe.de/blog/archives/690-fail2ban-+-dns-fail.html
- # Please DO NOT USE this jail unless you know what you are doing.
- #[named-refused-udp]
- #
- #enabled = false
- #port = domain,953
- #protocol = udp
- #filter = named-refused
- #logpath = /var/log/named/security.log
- [named-refused-tcp]
- enabled = false
- port = domain,953
- protocol = tcp
- filter = named-refused
- logpath = /var/log/named/security.log
- [freeswitch]
- enabled = false
- filter = freeswitch
- logpath = /var/log/freeswitch.log
- maxretry = 10
- action = iptables-multiport[name=freeswitch-tcp, port="5060,5061,5080,5081", protocol=tcp]
- iptables-multiport[name=freeswitch-udp, port="5060,5061,5080,5081", protocol=udp]
- [ejabberd-auth]
- enabled = false
- filter = ejabberd-auth
- port = xmpp-client
- protocol = tcp
- logpath = /var/log/ejabberd/ejabberd.log
- # Multiple jails, 1 per protocol, are necessary ATM:
- # see https://github.com/fail2ban/fail2ban/issues/37
- [asterisk-tcp]
- enabled = false
- filter = asterisk
- port = 5060,5061
- protocol = tcp
- logpath = /var/log/asterisk/messages
- [asterisk-udp]
- enabled = false
- filter = asterisk
- port = 5060,5061
- protocol = udp
- logpath = /var/log/asterisk/messages
- # 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 = 604800 ; 1 week
- findtime = 86400 ; 1 day
- maxretry = 5
- # See the IMPORTANT note in action.d/blocklist_de.conf for when to
- # use this action
- #
- # Report block via blocklist.de fail2ban reporting service API
- # See action.d/blocklist_de.conf for more information
- [ssh-blocklist]
- enabled = false
- filter = sshd
- action = iptables[name=SSH, port=ssh, protocol=tcp]
- sendmail-whois[name=SSH, dest="%(destemail)s", sender="%(sender)s", sendername="%(sendername)s"]
- blocklist_de[email="%(sender)s", apikey="xxxxxx", service="%(filter)s"]
- logpath = /var/log/sshd.log
- maxretry = 20
- # consider low maxretry and a long bantime
- # nobody except your own Nagios server should ever probe nrpe
- [nagios]
- enabled = false
- filter = nagios
- action = iptables[name=Nagios, port=5666, protocol=tcp]
- sendmail-whois[name=Nagios, dest="%(destemail)s", sender="%(sender)s", sendername="%(sendername)s"]
- logpath = /var/log/messages ; nrpe.cfg may define a different log_facility
- maxretry = 1
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