mirror of https://github.com/fail2ban/fail2ban
428 lines
12 KiB
Plaintext
428 lines
12 KiB
Plaintext
# Fail2Ban configuration file
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#
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# $Revision: 1.9 $
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#
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# 2005.06.21 modified for readability Iain Lea iain@bricbrac.de
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[DEFAULT]
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# Option: background
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# Notes.: start fail2ban as a daemon. Output is redirect to logfile.
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# Values: [true | false] Default: false
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#
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background = true
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# Option: verbose
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# Notes.: verbosity of the output.
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# 0 - regular level
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# 1 - INFO level
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# 2 - DEBUG level (but commands get executed as opposed to
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# debug option)
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# Values: NUM Default: 0
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#
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verbose = 1
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# Option: debug
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# Notes.: enable debug mode. No real commands gets executed but only
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# reported, more verbose output, bypass root user test.
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# Values: [true | false] Default: false
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#
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debug = false
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# Option: logtargets
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# Notes.: log targets. Space separated list of logging targets.
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# Values: STDERR SYSLOG file Default: /var/log/fail2ban.log
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#
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logtargets = /var/log/fail2ban.log
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# Option: syslog-target
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# Notes.: where to find syslog facility if logtarget SYSLOG.
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# Values: SOCKET HOST HOST:PORT Default: /dev/log
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#
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syslog-target = /dev/log
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# Option: syslog-facility
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# Notes.: which syslog facility to use if logtarget SYSLOG.
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# Values: NUM Default: 1
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#
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syslog-facility = 1
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# Option: pidlock
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# Notes.: path of the PID lock file (must be able to write to file).
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# Values: FILE Default: /var/run/fail2ban.pid
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#
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pidlock = /var/run/fail2ban.pid
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# Option: maxfailures
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# Notes.: number of failures before IP gets banned.
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# Values: NUM Default: 5
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#
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maxfailures = 5
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# Option: bantime
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# Notes.: number of seconds an IP will be banned. If set to a negative
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# value, IP will never be unbanned (permanent banning).
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# Values: NUM Default: 600
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#
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bantime = 600
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# Option: findtime
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# Notes.: lifetime in seconds of a "failed" log entry.
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# Values: NUM Default: 600
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#
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findtime = 600
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# Option: ignoreip
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# Notes.: space separated list of IP's to be ignored by fail2ban.
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# You can use CIDR mask in order to specify a range.
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# Example: ignoreip = 192.168.0.1/24 123.45.235.65
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# Values: IP Default:
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#
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ignoreip =
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# Option: cmdstart
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# Notes.: command executed once at the start of Fail2Ban
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# Values: CMD Default:
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#
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cmdstart =
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# Option: cmdend
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# Notes.: command executed once at the end of Fail2Ban.
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# Values: CMD Default:
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#
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cmdend =
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# Option: polltime
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# Notes.: number of seconds fail2ban sleeps between iterations.
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# Values: NUM Default: 1
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#
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polltime = 1
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# Option: reinittime
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# Notes.: minimal number of seconds between the re-initialization of
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# firewalls due to external changes in their rules (see fwcheck)
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# Values: NUM Default: 100
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#
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reinittime = 10
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# Option: maxreinits
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# Notes.: maximal number of re-initialization of firewalls due to external
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# changes. -1 stays for infinite, so only reinittime is of importance
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# Values: NUM Default: -1
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#
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maxreinits = -1
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# NOTE: Interpolations
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#
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# fwstart, as well as fwend, fwcheck, fwban, fwunban, use interpolations
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# so %(__name__)s will be substituted by a name of each section
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# (unless the option is overriden in a section).
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# If you are going to use interpolations in your setup, please make
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# sure that you specified options port and protocol (which also has
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# an option in DEFAULT).
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#
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# Option: protocol
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# Notes.: internally used by config reader for interpolations.
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# Values: [ tcp | udp | icmp | all ] Default: tcp
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#
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protocol = tcp
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# Option: fwchain
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# Notes.: chain from which to jump into fail2ban chains
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# Values: TEXT Default: INPUT
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#
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fwchain = INPUT
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# Option: fwstart
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# Notes.: command executed once at the start of Fail2Ban.
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# Values: CMD Default:
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#
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fwstart = iptables -N fail2ban-%(__name__)s
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iptables -A fail2ban-%(__name__)s -j RETURN
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iptables -I %(fwchain)s -p %(protocol)s --dport %(port)s -j fail2ban-%(__name__)s
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# Option: fwend
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# Notes.: command executed once at the end of Fail2Ban
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# Values: CMD Default:
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#
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fwend = iptables -D %(fwchain)s -p %(protocol)s --dport %(port)s -j fail2ban-%(__name__)s
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iptables -F fail2ban-%(__name__)s
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iptables -X fail2ban-%(__name__)s
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# Option: fwcheck
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# Notes.: command executed once before each fwban command
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# Values: CMD Default:
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#
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fwcheck = iptables -L %(fwchain)s | grep -q fail2ban-%(__name__)s
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# Option: fwban
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# Notes.: command executed when banning an IP. Take care that the
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# command is executed with Fail2Ban user rights.
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# Tags: <ip> IP address
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# <failures> number of failures
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# <failtime> unix timestamp of the last failure
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# <bantime> unix timestamp of the ban time
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# Values: CMD
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# Default: iptables -I INPUT 1 -s <ip> -j DROP
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#
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fwban = iptables -I fail2ban-%(__name__)s 1 -s <ip> -j DROP
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# Option: fwunban
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# Notes.: command executed when unbanning an IP. Take care that the
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# command is executed with Fail2Ban user rights.
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# Tags: <ip> IP address
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# <bantime> unix timestamp of the ban time
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# <unbantime> unix timestamp of the unban time
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# Values: CMD
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# Default: iptables -D INPUT -s <ip> -j DROP
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#
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fwunban = iptables -D fail2ban-%(__name__)s -s <ip> -j DROP
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[MAIL]
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# Option: enabled
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# Notes.: enable mail notification when banning an IP address.
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# Values: [true | false] Default: false
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#
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enabled = false
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# Option: host
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# Notes.: host running the mail server.
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# Values: STR Default: localhost
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#
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host = localhost
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# Option: port
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# Notes.: port of the mail server.
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# Values: INT Default: 25
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#
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port = 25
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# Option: user
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# Notes.: the username for smtp-server if authentification is required.
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# if user is empty, no authentification is done.
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# Values: STR Default:
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#
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user =
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# Option: password
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# Notes.: the smtp-user's password if authentification is required.
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# Values: STR Default:
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#
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password =
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# Option: from
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# Notes.: e-mail address of the sender.
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# Values: MAIL Default: fail2ban
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#
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from = fail2ban@localhost
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# Option: to
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# Notes.: e-mail addresses of the receiver. Addresses are space
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# separated.
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# Values: MAIL Default: root
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#
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to = root@localhost
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# Option: localtime
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# Notes.: report local time (including timezone) or GMT
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# Values: [true | false] Default: false
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#
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localtime = true
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# Option: subject
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# Notes.: subject of the e-mail.
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# Tags: <section> active section (eg ssh, apache, etc)
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# <ip> IP address
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# <failures> number of failures
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# <failtime> unix timestamp of the last failure
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# Values: TEXT Default: [Fail2Ban] <section>: Banned <ip>
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#
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subject = [Fail2Ban] <section>: Banned <ip>
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# Option: message
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# Notes.: message of the e-mail.
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# Tags: <section> active section (eg ssh, apache, etc)
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# <ip> IP address
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# <failures> number of failures
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# <failtime> unix timestamp of the last failure
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# <br> new line
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# Values: TEXT Default:
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#
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message = Hi,<br>
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The IP <ip> has just been banned by Fail2Ban after
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<failures> attempts against <section>.<br>
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Regards,<br>
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Fail2Ban
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# You can define a new section for each log file to check for
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# password failure. Each section has to define the following
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# options: logfile, fwban, fwunban, timeregex, timepattern,
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# failregex.
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[Apache]
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# Option: enabled
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# Notes.: enable monitoring for this section.
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# Values: [true | false] Default: false
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#
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enabled = false
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# Option: logfile
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# Notes.: logfile to monitor.
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# Values: FILE Default: /var/log/apache/error.log
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#
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logfile = /var/log/apache/error.log
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# Option: port
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# Notes.: specifies port to monitor
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# Values: [ NUM | STRING ] Default:
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#
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port = http
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# Option: timeregex
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# Notes.: regex to match timestamp in Apache logfile. For TAI64N format,
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# use timeregex = @[0-9a-f]{24}
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# Values: [Wed Jan 05 15:08:01 2005]
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# Default: \S{3} \S{3} \d{2} \d{2}:\d{2}:\d{2} \d{4}
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#
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timeregex = \S{3} \S{3} \d{2} \d{2}:\d{2}:\d{2} \d{4}
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# Option: timepattern
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# Notes.: format used in "timeregex" fields definition. Note that '%' must be
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# escaped with '%' (see http://rgruet.free.fr/PQR2.3.html#timeModule).
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# For TAI64N format, use timepattern = tai64n
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# Values: TEXT Default: %%a %%b %%d %%H:%%M:%%S %%Y
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#
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timepattern = %%a %%b %%d %%H:%%M:%%S %%Y
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# Option: failregex
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# Notes.: regex to match the password failure messages in the logfile.
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# Values: TEXT Default: [[]client (?P<host>\S*)[]] user .*(?:: authentication failure|not found)
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#
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failregex = [[]client (?P<host>\S*)[]] user .*(?:: authentication failure|not found)
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[ApacheAttacks]
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# Option: enabled
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# Notes.: enable monitoring for this section.
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# Values: [true | false] Default: false
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#
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enabled = false
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# Option: logfile
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# Notes.: logfile to monitor.
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# Values: FILE Default: /var/log/apache/access.log
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#
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logfile = /var/log/apache/access.log
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# Option: port
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# Notes.: specifies port to monitor
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# Values: [ NUM | STRING ] Default:
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#
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port = http
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# Option: maxfailures
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# Notes.: number of failures before IP gets banned.
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# Values: NUM Default: 5
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#
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maxfailures = 2
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# Option: timeregex
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# Notes.: regex to match timestamp in Apache access logfile.
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# Values: [19/Feb/2006:08:38:18]
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# Default: \d{2}/\S{3}/\d{4}:\d{2}:\d{2}:\d{2}
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#
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timeregex = \d{2}/\S{3}/\d{4}:\d{2}:\d{2}:\d{2}
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# Option: timepattern
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# Notes.: format used in "timeregex" fields definition. Note that '%' must be
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# escaped with '%' (see http://rgruet.free.fr/PQR2.3.html#timeModule)
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# Values: TEXT Default: %%d/%%b/%%Y:%%H:%%M:%%S
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#
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timepattern = %%d/%%b/%%Y:%%H:%%M:%%S
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# Option: failregex
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# Notes.: regex to match the password failure messages in the logfile.
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# Values: TEXT Default: [[]client (?P<host>\S*)[]] user .*(?:: authentication failure|not found)
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#
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failregex = ^(?P<host>\S*) -.*"GET .*(?:awstats\.pl\?configdir=|index2\.php\?_REQUEST\[option\].*)\|echo.*
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[VSFTPD]
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# Option: enabled
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# Notes.: enable monitoring for this section.
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# Values: [true | false] Default: false
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#
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enabled = false
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# Option: logfile
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# Notes.: logfile to monitor.
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# Values: FILE Default: /var/log/secure
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#
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logfile = /var/log/vsftpd.log
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# Option: port
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# Notes.: specifies port to monitor
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# Values: [ NUM | STRING ] Default:
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#
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port = ftp
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# Option: timeregex
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# Notes.: regex to match timestamp in VSFTPD logfile.
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# Values: [Mar 7 17:53:28]
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# Default: \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}
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#
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timeregex = \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}
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# Option: timepattern
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# Notes.: format used in "timeregex" fields definition. Note that '%' must be
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# escaped with '%' (see http://rgruet.free.fr/PQR2.3.html#timeModule)
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# Values: TEXT Default: %%b %%d %%H:%%M:%%S
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#
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timepattern = %%b %%d %%H:%%M:%%S
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# Option: failregex
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# Notes.: regex to match the password failures messages in the logfile.
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# Values: TEXT Default: Authentication failure|Failed password|Invalid user
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#
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failregex = FAIL LOGIN
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[SSH]
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# Option: enabled
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# Notes.: enable monitoring for this section.
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# Values: [true | false] Default: true
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#
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enabled = true
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# Option: logfile
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# Notes.: logfile to monitor.
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# Values: FILE Default: /var/log/auth.log
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#
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logfile = /var/log/auth.log
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# Option: port
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# Notes.: specifies port to monitor
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# Values: [ NUM | STRING ] Default:
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#
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port = ssh
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# Option: timeregex
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# Notes.: regex to match timestamp in SSH logfile. For TAI64N format,
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# use timeregex = @[0-9a-f]{24}
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# Values: [Mar 7 17:53:28]
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# Default: \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}
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#
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timeregex = \S{3}\s{1,2}\d{1,2} \d{2}:\d{2}:\d{2}
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# Option: timepattern
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# Notes.: format used in "timeregex" fields definition. Note that '%' must be
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# escaped with '%' (see http://rgruet.free.fr/PQR2.3.html#timeModule).
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# For TAI64N format, use timepattern = tai64n
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# Values: TEXT Default: %%b %%d %%H:%%M:%%S
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#
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timepattern = %%b %%d %%H:%%M:%%S
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# Option: failregex
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# Notes.: regex to match the password failures messages in the logfile.
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# Values: TEXT Default: (?:Authentication failure|Failed (?:keyboard-interactive/pam|password)) for(?: illegal user)? .* from (?:::f{4,6}:)?(?P<host>\S*)
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#
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failregex = : (?:(?:Authentication failure|Failed [-/\w+]+) for(?: [iI](?:llegal|nvalid) user)?|[Ii](?:llegal|nvalid) user|ROOT LOGIN REFUSED) .*(?: from|FROM) (?:::f{4,6}:)?(?P<host>\S*)
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