272 lines
10 KiB
Plaintext
272 lines
10 KiB
Plaintext
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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 overwritten 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 = 1h
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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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[INCLUDES]
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#before = paths-distro.conf
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before = paths-debian.conf
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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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# "bantime.increment" allows to use database for searching of previously banned ip's to increase a
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# default ban time using special formula, default it is banTime * 1, 2, 4, 8, 16, 32...
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bantime.increment = true
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# "bantime.rndtime" is the max number of seconds using for mixing with random time
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# to prevent "clever" botnets calculate exact time IP can be unbanned again:
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#bantime.rndtime =
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# "bantime.maxtime" is the max number of seconds using the ban time can reach (doesn't grow further)
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#bantime.maxtime =
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# "bantime.factor" is a coefficient to calculate exponent growing of the formula or common multiplier,
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# default value of factor is 1 and with default value of formula, the ban time
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# grows by 1, 2, 4, 8, 16 ...
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#bantime.factor = 1
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# "bantime.formula" used by default to calculate next value of ban time, default value below,
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# the same ban time growing will be reached by multipliers 1, 2, 4, 8, 16, 32...
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#bantime.formula = ban.Time * (1<<(ban.Count if ban.Count<20 else 20)) * banFactor
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#
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# more aggressive example of formula has the same values only for factor "2.0 / 2.885385" :
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#bantime.formula = ban.Time * math.exp(float(ban.Count+1)*banFactor)/math.exp(1*banFactor)
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# "bantime.multipliers" used to calculate next value of ban time instead of formula, corresponding
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# previously ban count and given "bantime.factor" (for multipliers default is 1);
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# following example grows ban time by 1, 2, 4, 8, 16 ... and if last ban count greater as multipliers count,
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# always used last multiplier (64 in example), for factor '1' and original ban time 600 - 10.6 hours
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#bantime.multipliers = 1 2 4 8 16 32 64
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# following example can be used for small initial ban time (bantime=60) - it grows more aggressive at begin,
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# for bantime=60 the multipliers are minutes and equal: 1 min, 5 min, 30 min, 1 hour, 5 hour, 12 hour, 1 day, 2 day
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#bantime.multipliers = 1 5 30 60 300 720 1440 2880
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# "bantime.overalljails" (if true) specifies the search of IP in the database will be executed
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# cross over all jails, if false (default), only current jail of the ban IP will be searched
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#bantime.overalljails = false
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# --------------------
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# "ignoreself" specifies whether the local resp. own IP addresses should be ignored
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# (default is true). Fail2ban will not ban a host which matches such addresses.
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#ignoreself = true
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# "ignoreip" can be a list of IP addresses, CIDR masks or DNS hosts. Fail2ban
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# will not ban a host which matches an address in this list. Several addresses
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# can be defined using space (and/or comma) separator.
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#ignoreip = 127.0.0.1/8 ::1
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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 = 10m
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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 = 10m
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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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# "maxmatches" is the number of matches stored in ticket (resolvable via tag <matches> in actions).
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maxmatches = %(maxretry)s
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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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#
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# Note: if systemd backend is chosen as the default but you enable a jail
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# for which logs are present only in its own log files, specify some other
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# backend for that jail (e.g. polling) and provide empty value for
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# journalmatch. See https://github.com/fail2ban/fail2ban/issues/959#issuecomment-74901200
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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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# raw: use raw value (no hostname), allow use it for no-host filters/actions (example user)
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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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# "mode" defines the mode of the filter (see corresponding filter implementation for more info).
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mode = normal
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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[mode=%(mode)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@<fq-hostname>
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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 ban-actions expecting parameter chain
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chain = <known/chain>
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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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# Format of user-agent https://tools.ietf.org/html/rfc7231#section-5.5.3
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fail2ban_agent = Fail2Ban/%(fail2ban_version)s
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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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banaction_allports = iptables-allports
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# The simplest action to take: ban only
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action_ = %(banaction)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 = %(action_)s
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%(mta)s-whois[sender="%(sender)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 = %(action_)s
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%(mta)s-whois-lines[sender="%(sender)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 = %(action_)s
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xarf-login-attack[service=%(__name__)s, sender="%(sender)s", logpath="%(logpath)s", port="%(port)s"]
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# ban & send a notification to one or more of the 50+ services supported by Apprise.
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# See https://github.com/caronc/apprise/wiki for details on what is supported.
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#
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# You may optionally over-ride the default configuration line (containing the Apprise URLs)
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# by using 'apprise[config="/alternate/path/to/apprise.cfg"]' otherwise
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# /etc/fail2ban/apprise.conf is sourced for your supported notification configuration.
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# action = %(action_)s
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# apprise
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# ban IP on CloudFlare & send an e-mail with whois report and relevant log lines
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# to the destemail.
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action_cf_mwl = cloudflare[cfuser="%(cfemail)s", cftoken="%(cfapikey)s"]
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%(mta)s-whois-lines[sender="%(sender)s", dest="%(destemail)s", logpath="%(logpath)s", chain="%(chain)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 use this action.
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# Specify expected parameters in file action.d/blocklist_de.local or if the interpolation
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# `action_blocklist_de` used for the action, set value of `blocklist_de_apikey`
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# in your `jail.local` globally (section [DEFAULT]) or per specific jail section (resp. in
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# corresponding jail.d/my-jail.local file).
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#
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action_blocklist_de = blocklist_de[email="%(sender)s", service="%(__name__)s", apikey="%(blocklist_de_apikey)s", agent="%(fail2ban_agent)s"]
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# Report ban via abuseipdb.com.
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#
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# See action.d/abuseipdb.conf for usage example and details.
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#
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action_abuseipdb = abuseipdb
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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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[caddy-status]
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enabled = true
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port = http,https
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filter = caddy-status
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logpath = /var/log/caddy/ratelimiters.log
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