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# Fail2Ban jail specifications file
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#
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# Comments: use '#' for comment lines and ';' (following a space) for inline comments
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#
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# Changes: in most of the cases you should not modify this
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# file, but provide customizations in jail.local file, e.g.:
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#
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# [DEFAULT]
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# bantime = 3600
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#
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# [ssh-iptables]
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# enabled = true
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#
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# The DEFAULT allows a global definition of the options. They can be overridden
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# in each jail afterwards.
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[DEFAULT]
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# "ignoreip" can be an IP address, a CIDR mask or a DNS host. Fail2ban will not
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# ban a host which matches an address in this list. Several addresses can be
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# defined using space separator.
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ignoreip = 127.0.0.1/8
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# "bantime" is the number of seconds that a host is banned.
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bantime = 600
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# A host is banned if it has generated "maxretry" during the last "findtime"
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# seconds.
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findtime = 600
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# "maxretry" is the number of failures before a host get banned.
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maxretry = 3
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# "backend" specifies the backend used to get files modification.
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# Available options are "pyinotify", "gamin", "polling" and "auto".
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# This option can be overridden in each jail as well.
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#
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# pyinotify: requires pyinotify (a file alteration monitor) to be installed.
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# If pyinotify is not installed, Fail2ban will use auto.
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# gamin: requires Gamin (a file alteration monitor) to be installed.
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# If Gamin is not installed, Fail2ban will use auto.
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# polling: uses a polling algorithm which does not require external libraries.
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# auto: will try to use the following backends, in order:
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# pyinotify, gamin, polling.
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backend = auto
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# "usedns" specifies if jails should trust hostnames in logs,
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# warn when DNS lookups are performed, or ignore all hostnames in logs
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#
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# yes: if a hostname is encountered, a DNS lookup will be performed.
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# warn: if a hostname is encountered, a DNS lookup will be performed,
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# but it will be logged as a warning.
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# no: if a hostname is encountered, will not be used for banning,
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# but it will be logged as info.
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usedns = warn
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# This jail corresponds to the standard configuration in Fail2ban 0.6.
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# The mail-whois action send a notification e-mail with a whois request
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# in the body.
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[ssh-iptables]
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enabled = false
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filter = sshd
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action = iptables[name=SSH, port=ssh, protocol=tcp]
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sendmail-whois[name=SSH, dest=you@example.com, sender=fail2ban@example.com]
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logpath = /var/log/sshd.log
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maxretry = 5
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[proftpd-iptables]
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enabled = false
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filter = proftpd
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action = iptables[name=ProFTPD, port=ftp, protocol=tcp]
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sendmail-whois[name=ProFTPD, dest=you@example.com]
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logpath = /var/log/proftpd/proftpd.log
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maxretry = 6
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# This jail forces the backend to "polling".
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[sasl-iptables]
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enabled = false
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filter = sasl
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backend = polling
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action = iptables[name=sasl, port=smtp, protocol=tcp]
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sendmail-whois[name=sasl, dest=you@example.com]
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logpath = /var/log/mail.log
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# ASSP SMTP Proxy Jail
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[assp]
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enabled = false
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filter = assp
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action = iptables-multiport[name=assp,port="25,465,587"]
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logpath = /root/path/to/assp/logs/maillog.txt
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# Here we use TCP-Wrappers instead of Netfilter/Iptables. "ignoreregex" is
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# used to avoid banning the user "myuser".
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[ssh-tcpwrapper]
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enabled = false
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filter = sshd
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action = hostsdeny
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sendmail-whois[name=SSH, dest=you@example.com]
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ignoreregex = for myuser from
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logpath = /var/log/sshd.log
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# Here we use blackhole routes for not requiring any additional kernel support
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# to store large volumes of banned IPs
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[ssh-route]
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enabled = false
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filter = sshd
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action = route
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logpath = /var/log/sshd.log
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maxretry = 5
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# Here we use a combination of Netfilter/Iptables and IPsets
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# for storing large volumes of banned IPs
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#
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# IPset comes in two versions. See ipset -V for which one to use
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# requires the ipset package and kernel support.
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[ssh-iptables-ipset4]
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enabled = false
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filter = sshd
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action = iptables-ipset-proto4[name=SSH, port=ssh, protocol=tcp]
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logpath = /var/log/sshd.log
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maxretry = 5
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[ssh-iptables-ipset6]
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enabled = false
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filter = sshd
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action = iptables-ipset-proto6[name=SSH, port=ssh, protocol=tcp, bantime=600]
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logpath = /var/log/sshd.log
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maxretry = 5
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# bsd-ipfw is ipfw used by BSD. It uses ipfw tables.
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# table number must be unique.
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#
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# This will create a deny rule for that table ONLY if a rule
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# for the table doesn't ready exist.
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#
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[ssh-bsd-ipfw]
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enabled = false
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filter = sshd
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action = bsd-ipfw[port=ssh,table=1]
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logpath = /var/log/auth.log
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maxretry = 5
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# This jail demonstrates the use of wildcards in "logpath".
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# Moreover, it is possible to give other files on a new line.
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[apache-tcpwrapper]
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enabled = false
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filter = apache-auth
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action = hostsdeny
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logpath = /var/log/apache*/*error.log
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/home/www/myhomepage/error.log
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maxretry = 6
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# The hosts.deny path can be defined with the "file" argument if it is
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# not in /etc.
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[postfix-tcpwrapper]
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enabled = false
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filter = postfix
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action = hostsdeny[file=/not/a/standard/path/hosts.deny]
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sendmail[name=Postfix, dest=you@example.com]
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logpath = /var/log/postfix.log
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bantime = 300
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# Do not ban anybody. Just report information about the remote host.
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# A notification is sent at most every 600 seconds (bantime).
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[vsftpd-notification]
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enabled = false
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filter = vsftpd
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action = sendmail-whois[name=VSFTPD, dest=you@example.com]
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logpath = /var/log/vsftpd.log
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maxretry = 5
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bantime = 1800
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# Same as above but with banning the IP address.
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[vsftpd-iptables]
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enabled = false
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filter = vsftpd
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action = iptables[name=VSFTPD, port=ftp, protocol=tcp]
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sendmail-whois[name=VSFTPD, dest=you@example.com]
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logpath = /var/log/vsftpd.log
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maxretry = 5
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bantime = 1800
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# Ban hosts which agent identifies spammer robots crawling the web
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# for email addresses. The mail outputs are buffered.
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[apache-badbots]
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enabled = false
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filter = apache-badbots
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action = iptables-multiport[name=BadBots, port="http,https"]
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sendmail-buffered[name=BadBots, lines=5, dest=you@example.com]
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logpath = /var/www/*/logs/access_log
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bantime = 172800
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maxretry = 1
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# Use shorewall instead of iptables.
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[apache-shorewall]
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enabled = false
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filter = apache-noscript
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action = shorewall
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sendmail[name=Postfix, dest=you@example.com]
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logpath = /var/log/apache2/error_log
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# Monitor roundcube server
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[roundcube-iptables]
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enabled = false
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filter = roundcube-auth
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action = iptables[name=RoundCube, port="http,https"]
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logpath = /var/log/roundcube/userlogins
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# Monitor SOGo groupware server
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[sogo-iptables]
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enabled = false
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filter = sogo-auth
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# without proxy this would be:
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# port = 20000
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action = iptables[name=SOGo, port="http,https"]
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logpath = /var/log/sogo/sogo.log
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# Ban attackers that try to use PHP's URL-fopen() functionality
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# through GET/POST variables. - Experimental, with more than a year
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# of usage in production environments.
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[php-url-fopen]
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enabled = false
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action = iptables[name=php-url-open, port="http,https"]
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filter = php-url-fopen
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logpath = /var/www/*/logs/access_log
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maxretry = 1
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# A simple PHP-fastcgi jail which works with lighttpd.
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# If you run a lighttpd server, then you probably will
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# find these kinds of messages in your error_log:
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# ALERT – tried to register forbidden variable ‘GLOBALS’
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# through GET variables (attacker '1.2.3.4', file '/var/www/default/htdocs/index.php')
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# This jail would block the IP 1.2.3.4.
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[lighttpd-fastcgi]
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enabled = false
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filter = lighttpd-fastcgi
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action = iptables[name=lighttpd-fastcgi, port="http,https"]
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# adapt the following two items as needed
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logpath = /var/log/lighttpd/error.log
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maxretry = 2
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# Same as above for mod_auth
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# It catches wrong authentications
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[lighttpd-auth]
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enabled = false
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filter = lighttpd-auth
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action = iptables[name=lighttpd-auth, port="http,https"]
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# adapt the following two items as needed
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logpath = /var/log/lighttpd/error.log
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maxretry = 2
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# This jail uses ipfw, the standard firewall on FreeBSD. The "ignoreip"
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# option is overridden in this jail. Moreover, the action "mail-whois" defines
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# the variable "name" which contains a comma using "". The characters '' are
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# valid too.
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[ssh-ipfw]
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enabled = false
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filter = sshd
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action = ipfw[localhost=192.168.0.1]
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sendmail-whois[name="SSH,IPFW", dest=you@example.com]
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logpath = /var/log/auth.log
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ignoreip = 168.192.0.1
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# These jails block attacks against named (bind9). By default, logging is off
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# with bind9 installation. You will need something like this:
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#
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# logging {
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# channel security_file {
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# file "/var/log/named/security.log" versions 3 size 30m;
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# severity dynamic;
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# print-time yes;
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# };
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# category security {
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# security_file;
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# };
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# };
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#
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# in your named.conf to provide proper logging.
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# This jail blocks UDP traffic for DNS requests.
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# !!! WARNING !!!
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# Since UDP is connection-less protocol, spoofing of IP and imitation
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# of illegal actions is way too simple. Thus enabling of this filter
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# might provide an easy way for implementing a DoS against a chosen
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# victim. See
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# http://nion.modprobe.de/blog/archives/690-fail2ban-+-dns-fail.html
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# Please DO NOT USE this jail unless you know what you are doing.
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#
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# [named-refused-udp]
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#
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# enabled = false
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# filter = named-refused
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# action = iptables-multiport[name=Named, port="domain,953", protocol=udp]
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# sendmail-whois[name=Named, dest=you@example.com]
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# logpath = /var/log/named/security.log
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# ignoreip = 168.192.0.1
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# This jail blocks TCP traffic for DNS requests.
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[named-refused-tcp]
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enabled = false
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filter = named-refused
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action = iptables-multiport[name=Named, port="domain,953", protocol=tcp]
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sendmail-whois[name=Named, dest=you@example.com]
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logpath = /var/log/named/security.log
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ignoreip = 168.192.0.1
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# Multiple jails, 1 per protocol, are necessary ATM:
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# see https://github.com/fail2ban/fail2ban/issues/37
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[asterisk-tcp]
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enabled = false
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filter = asterisk
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action = iptables-multiport[name=asterisk-tcp, port="5060,5061", protocol=tcp]
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sendmail-whois[name=Asterisk, dest=you@example.com, sender=fail2ban@example.com]
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logpath = /var/log/asterisk/messages
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maxretry = 10
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[asterisk-udp]
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enabled = false
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filter = asterisk
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action = iptables-multiport[name=asterisk-udp, port="5060,5061", protocol=udp]
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sendmail-whois[name=Asterisk, dest=you@example.com, sender=fail2ban@example.com]
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logpath = /var/log/asterisk/messages
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maxretry = 10
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# To log wrong MySQL access attempts add to /etc/my.cnf:
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# log-error=/var/log/mysqld.log
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# log-warning = 2
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[mysqld-iptables]
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enabled = false
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filter = mysqld-auth
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action = iptables[name=mysql, port=3306, protocol=tcp]
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sendmail-whois[name=MySQL, dest=root, sender=fail2ban@example.com]
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logpath = /var/log/mysqld.log
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maxretry = 5
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# Jail for more extended banning of persistent abusers
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# !!! WARNING !!!
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# Make sure that your loglevel specified in fail2ban.conf/.local
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# is not at DEBUG level -- which might then cause fail2ban to fall into
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# an infinite loop constantly feeding itself with non-informative lines
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[recidive]
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enabled = false
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filter = recidive
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logpath = /var/log/fail2ban.log
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action = iptables-allports[name=recidive]
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sendmail-whois-lines[name=recidive, logpath=/var/log/fail2ban.log]
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bantime = 604800 ; 1 week
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findtime = 86400 ; 1 day
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maxretry = 5
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# PF is a BSD based firewall
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[ssh-pf]
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enabled=false
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filter = sshd
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action = pf
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logpath = /var/log/sshd.log
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maxretry=5
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