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777 lines
19 KiB
777 lines
19 KiB
# Fail2Ban jail base specification file
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#
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# HOW TO ACTIVATE JAILS:
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#
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# YOU SHOULD NOT MODIFY THIS FILE.
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#
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# It will probably be overwitten or improved in a distribution update.
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#
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# Provide customizations in a jail.local file or a jail.d/customisation.local.
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# For example to change the default bantime for all jails and to enable the
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# ssh-iptables jail the following (uncommented) would appear in the .local file.
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# See man 5 jail.conf for details.
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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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# Comments: use '#' for comment lines and ';' (following a space) for inline comments
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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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# External command that will take an tagged arguments to ignore, e.g. <ip>,
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# and return true if the IP is to be ignored. False otherwise.
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#
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# ignorecommand = /path/to/command <ip>
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ignorecommand =
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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.
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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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[pam-generic]
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enabled = false
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filter = pam-generic
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action = iptables-allports[name=pam,protocol=all]
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logpath = /var/log/secure
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[xinetd-fail]
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enabled = false
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filter = xinetd-fail
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action = iptables-allports[name=xinetd,protocol=all]
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logpath = /var/log/daemon*log
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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, sendername="Fail2Ban"]
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logpath = /var/log/sshd.log
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maxretry = 5
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[ssh-ddos]
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enabled = false
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filter = sshd-ddos
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action = iptables[name=SSHDDOS, port=ssh, protocol=tcp]
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logpath = /var/log/sshd.log
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maxretry = 2
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[dropbear]
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enabled = false
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filter = dropbear
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action = iptables[name=dropbear, port=ssh, protocol=tcp]
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logpath = /var/log/messages
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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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[gssftpd-iptables]
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enabled = false
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filter = gssftpd
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action = iptables[name=GSSFTPd, port=ftp, protocol=tcp]
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sendmail-whois[name=GSSFTPd, dest=you@example.com]
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logpath = /var/log/daemon.log
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maxretry = 6
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[pure-ftpd]
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enabled = false
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filter = pure-ftpd
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action = iptables[name=pureftpd, port=ftp, protocol=tcp]
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logpath = /var/log/pureftpd.log
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maxretry = 6
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[wuftpd]
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enabled = false
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filter = wuftpd
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action = iptables[name=wuftpd, port=ftp, protocol=tcp]
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logpath = /var/log/daemon.log
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maxretry = 6
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[sendmail-auth]
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enabled = false
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filter = sendmail-auth
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action = iptables-multiport[name=sendmail-auth, port="submission,465,smtp", protocol=tcp]
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logpath = /var/log/mail.log
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[sendmail-reject]
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enabled = false
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filter = sendmail-reject
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action = iptables-multiport[name=sendmail-auth, port="submission,465,smtp", protocol=tcp]
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logpath = /var/log/mail.log
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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 = postfix-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[daemon_list=sshd]
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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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[apache-modsecurity]
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enabled = false
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filter = apache-modsecurity
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action = iptables-multiport[name=apache-modsecurity,port="80,443"]
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logpath = /var/log/apache*/*error.log
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/home/www/myhomepage/error.log
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maxretry = 2
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[apache-overflows]
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enabled = false
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filter = apache-overflows
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action = iptables-multiport[name=apache-overflows,port="80,443"]
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logpath = /var/log/apache*/*error.log
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/home/www/myhomepage/error.log
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maxretry = 2
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[apache-nohome]
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enabled = false
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filter = apache-nohome
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action = iptables-multiport[name=apache-nohome,port="80,443"]
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logpath = /var/log/apache*/*error.log
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/home/www/myhomepage/error.log
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maxretry = 2
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[nginx-http-auth]
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enabled = false
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filter = nginx-http-auth
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action = iptables-multiport[name=nginx-http-auth,port="80,443"]
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logpath = /var/log/nginx/error.log
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[squid]
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enabled = false
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filter = squid
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action = iptables-multiport[name=squid,port="80,443,8080"]
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logpath = /var/log/squid/access.log
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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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[cyrus-imap]
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enabled = false
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filter = cyrus-imap
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action = iptables-multiport[name=cyrus-imap,port="143,993"]
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logpath = /var/log/mail*log
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[courierlogin]
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enabled = false
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filter = courierlogin
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action = iptables-multiport[name=courierlogin,port="25,110,143,465,587,993,995"]
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logpath = /var/log/mail*log
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[couriersmtp]
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enabled = false
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filter = couriersmtp
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action = iptables-multiport[name=couriersmtp,port="25,465,587"]
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logpath = /var/log/mail*log
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[qmail-rbl]
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enabled = false
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filter = qmail
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action = iptables-multiport[name=qmail-rbl,port="25,465,587"]
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logpath = /service/qmail/log/main/current
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[sieve]
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enabled = false
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filter = sieve
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action = iptables-multiport[name=sieve,port="25,465,587"]
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logpath = /var/log/mail*log
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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-multiport[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-multiport[name=SOGo, port="http,https"]
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logpath = /var/log/sogo/sogo.log
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[groupoffice]
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enabled = false
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filter = groupoffice
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action = iptables-multiport[name=groupoffice, port="http,https"]
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logpath = /home/groupoffice/log/info.log
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[openwebmail]
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enabled = false
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filter = openwebmail
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logpath = /var/log/openwebmail.log
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action = ipfw
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sendmail-whois[name=openwebmail, dest=you@example.com]
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maxretry = 5
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[horde]
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enabled = false
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filter = horde
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logpath = /var/log/horde/horde.log
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action = iptables-multiport[name=horde, port="http,https"]
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maxretry = 5
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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-multiport[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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[suhosin]
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enabled = false
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filter = suhosin
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action = iptables-multiport[name=suhosin, 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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[lighttpd-auth]
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enabled = false
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filter = lighttpd-auth
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action = iptables-multiport[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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# !!! 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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# IMPORTANT: see filter.d/named-refused for instructions to enable logging
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# This jail blocks UDP traffic for DNS requests.
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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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# IMPORTANT: see filter.d/named-refused for instructions to enable logging
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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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[nsd]
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enabled = false
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filter = nsd
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action = iptables-multiport[name=nsd-tcp, port="domain", protocol=tcp]
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iptables-multiport[name=nsd-udp, port="domain", protocol=udp]
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logpath = /var/log/nsd.log
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[asterisk]
|
|
|
|
enabled = false
|
|
filter = asterisk
|
|
action = iptables-multiport[name=asterisk-tcp, port="5060,5061", protocol=tcp]
|
|
iptables-multiport[name=asterisk-udp, port="5060,5061", protocol=udp]
|
|
sendmail-whois[name=Asterisk, dest=you@example.com, sender=fail2ban@example.com]
|
|
logpath = /var/log/asterisk/messages
|
|
maxretry = 10
|
|
|
|
|
|
[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
|
|
logpath = /var/log/ejabberd/ejabberd.log
|
|
action = iptables[name=ejabberd, port=xmpp-client, protocol=tcp]
|
|
|
|
# Historical support (before https://github.com/fail2ban/fail2ban/issues/37 was fixed )
|
|
# use [asterisk] for new jails
|
|
[asterisk-tcp]
|
|
|
|
enabled = false
|
|
filter = asterisk
|
|
action = iptables-multiport[name=asterisk-tcp, port="5060,5061", protocol=tcp]
|
|
sendmail-whois[name=Asterisk, dest=you@example.com, sender=fail2ban@example.com]
|
|
logpath = /var/log/asterisk/messages
|
|
maxretry = 10
|
|
|
|
|
|
# Historical support (before https://github.com/fail2ban/fail2ban/issues/37 was fixed )
|
|
# use [asterisk] for new jails
|
|
[asterisk-udp]
|
|
|
|
enabled = false
|
|
filter = asterisk
|
|
action = iptables-multiport[name=asterisk-udp, port="5060,5061", protocol=udp]
|
|
sendmail-whois[name=Asterisk, dest=you@example.com, sender=fail2ban@example.com]
|
|
logpath = /var/log/asterisk/messages
|
|
maxretry = 10
|
|
|
|
|
|
[mysqld-iptables]
|
|
|
|
enabled = false
|
|
filter = mysqld-auth
|
|
action = iptables[name=mysql, port=3306, protocol=tcp]
|
|
sendmail-whois[name=MySQL, dest=root, sender=fail2ban@example.com]
|
|
logpath = /var/log/mysqld.log
|
|
maxretry = 5
|
|
|
|
|
|
[mysqld-syslog]
|
|
|
|
enabled = false
|
|
filter = mysqld-auth
|
|
action = iptables[name=mysql, port=3306, protocol=tcp]
|
|
logpath = /var/log/daemon.log
|
|
maxretry = 5
|
|
|
|
|
|
# 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,protocol=all]
|
|
sendmail-whois-lines[name=recidive, logpath=/var/log/fail2ban.log]
|
|
bantime = 604800 ; 1 week
|
|
findtime = 86400 ; 1 day
|
|
maxretry = 5
|
|
|
|
|
|
# PF is a BSD based firewall
|
|
[ssh-pf]
|
|
|
|
enabled = false
|
|
filter = sshd
|
|
action = pf
|
|
logpath = /var/log/sshd.log
|
|
maxretry = 5
|
|
|
|
|
|
[3proxy]
|
|
|
|
enabled = false
|
|
filter = 3proxy
|
|
action = iptables[name=3proxy, port=3128, protocol=tcp]
|
|
logpath = /var/log/3proxy.log
|
|
|
|
|
|
[exim]
|
|
|
|
enabled = false
|
|
filter = exim
|
|
action = iptables-multiport[name=exim,port="25,465,587"]
|
|
logpath = /var/log/exim/mainlog
|
|
|
|
|
|
[exim-spam]
|
|
|
|
enabled = false
|
|
filter = exim-spam
|
|
action = iptables-multiport[name=exim-spam,port="25,465,587"]
|
|
logpath = /var/log/exim/mainlog
|
|
|
|
|
|
[perdition]
|
|
|
|
enabled = false
|
|
filter = perdition
|
|
action = iptables-multiport[name=perdition,port="110,143,993,995"]
|
|
logpath = /var/log/maillog
|
|
|
|
|
|
[uwimap-auth]
|
|
|
|
enabled = false
|
|
filter = uwimap-auth
|
|
action = iptables-multiport[name=uwimap-auth,port="110,143,993,995"]
|
|
logpath = /var/log/maillog
|
|
|
|
|
|
[osx-ssh-ipfw]
|
|
|
|
enabled = false
|
|
filter = sshd
|
|
action = osx-ipfw
|
|
logpath = /var/log/secure.log
|
|
maxretry = 5
|
|
|
|
|
|
[ssh-apf]
|
|
|
|
enabled = false
|
|
filter = sshd
|
|
action = apf[name=SSH]
|
|
logpath = /var/log/secure
|
|
maxretry = 5
|
|
|
|
|
|
[osx-ssh-afctl]
|
|
|
|
enabled = false
|
|
filter = sshd
|
|
action = osx-afctl[bantime=600]
|
|
logpath = /var/log/secure.log
|
|
maxretry = 5
|
|
|
|
|
|
[webmin-auth]
|
|
|
|
enabled = false
|
|
filter = webmin-auth
|
|
action = iptables-multiport[name=webmin,port="10000"]
|
|
logpath = /var/log/auth.log
|
|
|
|
|
|
# dovecot defaults to logging to the mail syslog facility
|
|
# but can be set by syslog_facility in the dovecot configuration.
|
|
[dovecot]
|
|
|
|
enabled = false
|
|
filter = dovecot
|
|
action = iptables-multiport[name=dovecot, port="pop3,pop3s,imap,imaps,submission,465,sieve", protocol=tcp]
|
|
logpath = /var/log/mail.log
|
|
|
|
|
|
[dovecot-auth]
|
|
|
|
enabled = false
|
|
filter = dovecot
|
|
action = iptables-multiport[name=dovecot-auth, port="pop3,pop3s,imap,imaps,submission,465,sieve", protocol=tcp]
|
|
logpath = /var/log/secure
|
|
|
|
|
|
[solid-pop3d]
|
|
|
|
enabled = false
|
|
filter = solid-pop3d
|
|
action = iptables-multiport[name=solid-pop3, port="pop3,pop3s", protocol=tcp]
|
|
logpath = /var/log/mail.log
|
|
|
|
|
|
[selinux-ssh]
|
|
enabled = false
|
|
filter = selinux-ssh
|
|
action = iptables[name=SELINUX-SSH, port=ssh, protocol=tcp]
|
|
logpath = /var/log/audit/audit.log
|
|
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=you@example.com, sender=fail2ban@example.com, sendername="Fail2Ban"]
|
|
blocklist_de[email="fail2ban@example.com", 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=you@example.com, sender=fail2ban@example.com, sendername="Fail2Ban"]
|
|
logpath = /var/log/messages ; nrpe.cfg may define a different log_facility
|
|
maxretry = 1
|