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837 lines
19 KiB
837 lines
19 KiB
# Fail2Ban jail base specification file
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#
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# WARNING: heavily refactored in 0.9.0 release. Please review and
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# customize settings for your setup.
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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,
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# or separate .conf files under jail.d/ directory, e.g.:
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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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# [sshd]
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# enabled = true
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#
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# See jail.conf(5) man page for more information
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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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#
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# MISCELLANEOUS OPTIONS
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#
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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 = 5
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# "backend" specifies the backend used to get files modification.
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# Available options are "pyinotify", "gamin", "polling", "systemd" 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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# systemd: uses systemd python library to access the systemd journal.
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# Specifying "logpath" is not valid for this backend.
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# See "journalmatch" in the jails associated filter config
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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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# "logencoding" specifies the encoding of the log files handled by the jail
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# This is used to decode the lines from the log file.
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# Typical examples: "ascii", "utf-8"
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#
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# auto: will use the system locale setting
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logencoding = auto
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# "enabled" enables the jails.
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# By default all jails are disabled, and it should stay this way.
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# Enable only relevant to your setup jails in your .local or jail.d/*.conf
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#
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# true: jail will be enabled and log files will get monitored for changes
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# false: jail is not enabled
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enabled = false
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# "filter" defines the filter to use by the jail.
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# By default jails have names matching their filter name
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#
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filter = %(__name__)s
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#
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# ACTIONS
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#
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# Some options used for actions
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# Destination email address used solely for the interpolations in
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# jail.{conf,local,d/*} configuration files.
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destemail = root@localhost
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# Sender email address used solely for some actions
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sender = root@localhost
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# E-mail action. Since 0.8.1 Fail2Ban uses sendmail MTA for the
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# mailing. Change mta configuration parameter to mail if you want to
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# revert to conventional 'mail'.
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mta = sendmail
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# Default protocol
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protocol = tcp
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# Specify chain where jumps would need to be added in iptables-* actions
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chain = INPUT
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# Ports to be banned
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# Usually should be overridden in a particular jail
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port = 0:65535
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#
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# Action shortcuts. To be used to define action parameter
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# Default banning action (e.g. iptables, iptables-new,
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# iptables-multiport, shorewall, etc) It is used to define
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# action_* variables. Can be overridden globally or per
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# section within jail.local file
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banaction = iptables-multiport
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# The simplest action to take: ban only
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action_ = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
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# ban & send an e-mail with whois report to the destemail.
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action_mw = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
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%(mta)s-whois[name=%(__name__)s, dest="%(destemail)s", protocol="%(protocol)s", chain="%(chain)s"]
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# ban & send an e-mail with whois report and relevant log lines
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# to the destemail.
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action_mwl = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
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%(mta)s-whois-lines[name=%(__name__)s, dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s"]
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# See the IMPORTANT note in action.d/xarf-login-attack for when to use this action
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#
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# ban & send a xarf e-mail to abuse contact of IP address and include relevant log lines
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# to the destemail.
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action_xarf = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
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xarf-login-attack[service=%(__name__)s, sender="%(sender)s", logpath=%(logpath)s, port="%(port)s"]
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# Report block via blocklist.de fail2ban reporting service API
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#
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# See the IMPORTANT note in action.d/blocklist_de.conf for when to
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# use this action. Create a file jail.d/blocklist_de.local containing
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# [Init]
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# blocklist_de_apikey = {api key from registration]
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#
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action_blocklist_de = blocklist_de[email="%(sender)s", service=%(filter)s, apikey="%(blocklist_de_apikey)s"]
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# Choose default action. To change, just override value of 'action' with the
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# interpolation to the chosen action shortcut (e.g. action_mw, action_mwl, etc) in jail.local
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# globally (section [DEFAULT]) or per specific section
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action = %(action_)s
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#
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# JAILS
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#
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#
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# SSH servers
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#
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[sshd]
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port = ssh
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logpath = /var/log/auth.log
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/var/log/sshd.log
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[sshd-ddos]
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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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port = ssh
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logpath = /var/log/auth.log
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/var/log/sshd.log
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[dropbear]
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port = ssh
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logpath = /var/log/dropbear
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[selinux-ssh]
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port = ssh
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logpath = /var/log/audit/audit.log
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maxretry = 5
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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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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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[sshd-route]
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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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# 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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[sshd-iptables-ipset4]
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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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[sshd-iptables-ipset6]
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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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[sshd-apf]
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filter = sshd
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action = apf[name=SSH]
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logpath = /var/log/secure
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maxretry = 5
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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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[sshd-ipfw]
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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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# 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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[sshd-bsd-ipfw]
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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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[sshd-pf]
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# PF is a BSD based firewall
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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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# ipfw for osx (less capabilities that BSD)
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[osx-sshd-ipfw]
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filter = sshd
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action = osx-ipfw
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logpath = /var/log/secure.log
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[osx-sshd-afctl]
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filter = sshd
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action = osx-afctl[bantime=600]
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logpath = /var/log/secure.log
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maxretry = 5
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#
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# HTTP servers
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#
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[apache-auth]
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port = http,https
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logpath = /var/log/apache*/*error.log
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[apache-badbots]
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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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port = http,https
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logpath = /var/log/apache*/*access.log
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/var/www/*/logs/access_log
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bantime = 172800
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maxretry = 1
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[apache-noscript]
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port = http,https
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logpath = /var/log/apache*/*error.log
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maxretry = 6
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[apache-overflows]
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port = http,https
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logpath = /var/log/apache*/*error.log
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/var/www/*/logs/error_log
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maxretry = 2
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[apache-nohome]
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port = http,https
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logpath = /var/log/apache*/*error.log
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/var/www/*/logs/error_log
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maxretry = 2
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[apache-botsearch]
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port = http,https
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logpath = /var/log/apache*/*error.log
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maxretry = 2
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[apache-modsecurity]
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port = http,https
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logpath = /var/log/apache*/*error.log
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/var/www/*/logs/error_log
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maxretry = 2
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[nginx-http-auth]
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ports = http,https
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logpath = /var/log/nginx/error.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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port = http,https
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logpath = /var/www/*/logs/access_log
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[suhosin]
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port = http,https
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logpath = /var/log/lighttpd/error.log
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[lighttpd-auth]
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# Same as above for Apache's mod_auth
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# It catches wrong authentifications
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port = http,https
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logpath = /var/log/lighttpd/error.log
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#
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# Webmail and groupware servers
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#
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[roundcube-auth]
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port = http,https
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logpath = /var/log/roundcube/userlogins
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[openwebmail]
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port = http,https
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logpath = /var/log/openwebmail.log
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[horde]
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port = http,https
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logpath = /var/log/horde/horde.log
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[groupoffice]
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port = http,https
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logpath = /home/groupoffice/log/info.log
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[sogo-auth]
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# Monitor SOGo groupware server
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# without proxy this would be:
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# port = 20000
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port = http,https
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logpath = /var/log/sogo/sogo.log
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[tine20]
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logpath = /var/log/tine20/tine20.log
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port = http,https
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maxretry = 5
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#
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# Web Applications
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#
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#
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[guacamole]
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port = http,https
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logpath = /var/log/tomcat*/catalina.out
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[webmin-auth]
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port = 10000
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logpath = /var/log/auth.log
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#
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# HTTP Proxy servers
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#
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#
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[squid]
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port = 80,443,3128,8080
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logpath = /var/log/squid/access.log
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[3proxy]
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port = 3128
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logpath = /var/log/3proxy.log
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#
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# FTP servers
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#
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[proftpd]
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port = ftp,ftp-data,ftps,ftps-data
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logpath = /var/log/proftpd/proftpd.log
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[pure-ftpd]
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port = ftp,ftp-data,ftps,ftps-data
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logpath = /var/log/auth.log
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maxretry = 6
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[gssftpd]
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port = ftp,ftp-data,ftps,ftps-data
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logpath = /var/log/daemon.log
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maxretry = 6
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[wuftpd]
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port = ftp,ftp-data,ftps,ftps-data
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logpath = /var/log/daemon.log
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maxretry = 6
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[vsftpd]
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# or overwrite it in jails.local to be
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# logpath = /var/log/auth.log
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# if you want to rely on PAM failed login attempts
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# vsftpd's failregex should match both of those formats
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port = ftp,ftp-data,ftps,ftps-data
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logpath = /var/log/vsftpd.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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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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filter = vsftpd
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port = ftp,ftp-data,ftps,ftps-data
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logpath = /var/log/syslog
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maxretry = 5
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bantime = 1800
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#
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# Mail servers
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#
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# ASSP SMTP Proxy Jail
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|
[assp]
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port = smtp,465,submission
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logpath = /root/path/to/assp/logs/maillog.txt
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[courier-smtp]
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port = smtp,465,submission
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logpath = /var/log/mail.log
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[postfix]
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port = smtp,465,submission
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logpath = /var/log/mail.log
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[qmail-rbl]
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filter = qmail
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port = smtp,465,submission
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logpath = /service/qmail/log/main/current
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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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filter = postfix
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|
action = hostsdeny[file=/not/a/standard/path/hosts.deny]
|
|
sendmail[name=Postfix, dest=you@example.com]
|
|
logpath = /var/log/postfix.log
|
|
bantime = 300
|
|
|
|
|
|
[sendmail-spam]
|
|
|
|
logpath = /var/log/mail.log
|
|
|
|
|
|
# dovecot defaults to logging to the mail syslog facility
|
|
# but can be set by syslog_facility in the dovecot configuration.
|
|
[dovecot]
|
|
|
|
port = pop3,pop3s,imap,imaps,submission,465,sieve
|
|
logpath = /var/log/mail.log
|
|
|
|
|
|
[dovecot-auth]
|
|
|
|
filter = dovecot
|
|
port = pop3,pop3s,imap,imaps,submission,465,sieve
|
|
logpath = /var/log/secure
|
|
|
|
|
|
[sieve]
|
|
|
|
port = smtp,465,submission
|
|
logpath = /var/log/mail*log
|
|
|
|
|
|
[solid-pop3d]
|
|
|
|
port = pop3,pop3s
|
|
logpath = /var/log/mail.log
|
|
|
|
|
|
[exim]
|
|
|
|
port = smtp,465,submission
|
|
logpath = /var/log/exim/mainlog
|
|
|
|
[exim-spam]
|
|
port = smtp,465,submission
|
|
logpath = /var/log/exim/mainlog
|
|
|
|
|
|
[kerio]
|
|
port = imap,smtp,imaps,465
|
|
logpath = /opt/kerio/mailserver/store/logs/security.log
|
|
|
|
|
|
#
|
|
# Mail servers authenticators: might be used for smtp,ftp,imap servers, so
|
|
# all relevant ports get banned
|
|
#
|
|
|
|
[courier-auth]
|
|
|
|
port = smtp,465,submission,imap3,imaps,pop3,pop3s
|
|
logpath = /var/log/mail.log
|
|
|
|
|
|
[postfix-sasl]
|
|
|
|
port = smtp,465,submission,imap3,imaps,pop3,pop3s
|
|
# 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
|
|
|
|
|
|
[perdition]
|
|
|
|
port = imap3,imaps,pop3,pop3s
|
|
logpath = /var/log/maillog
|
|
|
|
|
|
[squirrelmail]
|
|
|
|
port = smtp,465,submission,imap2,imap3,imaps,pop3,pop3s,http,https,socks
|
|
logpath = /var/lib/squirrelmail/prefs/squirrelmail_access_log
|
|
|
|
|
|
[cyrus-imap]
|
|
|
|
port = imap3,imaps
|
|
logpath = /var/log/mail*log
|
|
|
|
|
|
[uwimap-auth]
|
|
|
|
port = imap3,imaps
|
|
logpath = /var/log/mail*log
|
|
|
|
|
|
#
|
|
#
|
|
# DNS servers
|
|
#
|
|
|
|
|
|
# !!! 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.
|
|
#
|
|
# IMPORTANT: see filter.d/named-refused for instructions to enable logging
|
|
# This jail blocks UDP traffic for DNS requests.
|
|
# [named-refused-udp]
|
|
#
|
|
# filter = named-refused
|
|
# port = domain,953
|
|
# protocol = udp
|
|
# logpath = /var/log/named/security.log
|
|
|
|
# IMPORTANT: see filter.d/named-refused for instructions to enable logging
|
|
# This jail blocks TCP traffic for DNS requests.
|
|
|
|
[named-refused]
|
|
|
|
port = domain,953
|
|
logpath = /var/log/named/security.log
|
|
|
|
|
|
[nsd]
|
|
|
|
port = 53
|
|
action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp]
|
|
%(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp]
|
|
logpath = /var/log/nsd.log
|
|
|
|
|
|
#
|
|
# Miscelaneous
|
|
#
|
|
|
|
[asterisk]
|
|
|
|
port = 5060,5061
|
|
action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp]
|
|
%(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp]
|
|
%(mta)s-whois[name=%(__name__)s, dest="%(destemail)s"]
|
|
logpath = /var/log/asterisk/messages
|
|
maxretry = 10
|
|
|
|
|
|
[freeswitch]
|
|
|
|
port = 5060,5061
|
|
action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp]
|
|
%(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp]
|
|
%(mta)s-whois[name=%(__name__)s, dest="%(destemail)s"]
|
|
logpath = /var/log/freeswitch.log
|
|
maxretry = 10
|
|
|
|
|
|
# Historical support (before https://github.com/fail2ban/fail2ban/issues/37 was fixed )
|
|
# use [asterisk] for new jails
|
|
[asterisk-tcp]
|
|
|
|
filter = asterisk
|
|
port = 5060,5061
|
|
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]
|
|
|
|
filter = asterisk
|
|
port = 5060,5061
|
|
protocol = udp
|
|
logpath = /var/log/asterisk/messages
|
|
maxretry = 10
|
|
|
|
|
|
# To log wrong MySQL access attempts add to /etc/my.cnf in [mysqld] or
|
|
# equivalent section:
|
|
# log-error=/var/log/mysqld.log
|
|
# log-warning = 2
|
|
[mysqld-auth]
|
|
|
|
port = 3306
|
|
logpath = /var/log/mysqld.log
|
|
maxretry = 5
|
|
|
|
|
|
# This requires my.cnf to contain (check the mysql version supports this)
|
|
# [mysqld_safe]
|
|
# syslog
|
|
[mysqld-syslog]
|
|
|
|
port = 3306
|
|
filter = mysqld-auth
|
|
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]
|
|
|
|
logpath = /var/log/fail2ban.log
|
|
port = all
|
|
protocol = all
|
|
bantime = 604800 ; 1 week
|
|
findtime = 86400 ; 1 day
|
|
maxretry = 5
|
|
|
|
|
|
# Generic filter for PAM. Has to be used with action which bans all
|
|
# ports such as iptables-allports, shorewall
|
|
|
|
[pam-generic]
|
|
# pam-generic filter can be customized to monitor specific subset of 'tty's
|
|
banaction = iptables-allports
|
|
logpath = /var/log/auth.log
|
|
|
|
|
|
[xinetd-fail]
|
|
|
|
banaction = iptables-multiport-log
|
|
logpath = /var/log/daemon.log
|
|
maxretry = 2
|
|
|
|
|
|
# stunnel - need to set port for this
|
|
[stunnel]
|
|
|
|
logpath = /var/log/stunnel4/stunnel.log
|
|
|
|
|
|
[ejabberd-auth]
|
|
|
|
port = 5222
|
|
logpath = /var/log/ejabberd/ejabberd.log
|
|
|
|
|
|
[counter-strike]
|
|
|
|
logpath = /opt/cstrike/logs/L[0-9]*.log
|
|
# Firewall: http://www.cstrike-planet.com/faq/6
|
|
tcpport = 27030,27031,27032,27033,27034,27035,27036,27037,27038,27039
|
|
udpport = 1200,27000,27001,27002,27003,27004,27005,27006,27007,27008,27009,27010,27011,27012,27013,27014,27015
|
|
action = %(banaction)s[name=%(__name__)s-tcp, port="%(tcpport)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp]
|
|
%(banaction)s[name=%(__name__)s-udp, port="%(udpport)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp]
|
|
|
|
# consider low maxretry and a long bantime
|
|
# nobody except your own Nagios server should ever probe nrpe
|
|
[nagios]
|
|
|
|
enabled = false
|
|
logpath = /var/log/messages ; nrpe.cfg may define a different log_facility
|
|
maxretry = 1
|