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145 lines
5.2 KiB
Plaintext
145 lines
5.2 KiB
Plaintext
## Version 2022/08/06
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# Fail2Ban configuration file
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#
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# Author: Russell Odom <russ@gloomytrousers.co.uk>
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# Submits attack reports to myNetWatchman (http://www.mynetwatchman.com/)
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#
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# You MUST configure at least:
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# <port> (the port that's being attacked - use number not name).
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# <mnwlogin> (your mNW login).
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# <mnwpass> (your mNW password).
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#
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# You SHOULD also provide:
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# <myip> (your public IP address, if it's not the address of eth0)
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# <protocol> (the protocol in use - defaults to tcp)
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#
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# Best practice is to provide <port> and <protocol> in jail.conf like this:
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# action = mynetwatchman[port=1234,protocol=udp]
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#
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# ...and create "mynetwatchman.local" with contents something like this:
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# [Init]
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# mnwlogin = me@example.com
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# mnwpass = SECRET
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# myip = 10.0.0.1
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#
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# Another useful configuration value is <getcmd>, if you don't have wget
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# installed (an example config for curl is given below)
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#
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[Definition]
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# Option: actionstart
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# Notes.: command executed on demand at the first ban (or at the start of Fail2Ban if actionstart_on_demand is set to false).
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# Values: CMD
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#
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actionstart =
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# Option: actionstop
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# Notes.: command executed at the stop of jail (or at the end of Fail2Ban)
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# Values: CMD
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#
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actionstop =
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# Option: actioncheck
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# Notes.: command executed once before each actionban command
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# Values: CMD
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#
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actioncheck =
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# Option: actionban
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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: See jail.conf(5) man page
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# Values: CMD
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#
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#
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# Note: We are currently using <time> for the timestamp because no tag is
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# available to indicate the timestamp of the log message(s) which triggered the
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# ban. Therefore the timestamps we are using in the report, whilst often only a
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# few seconds out, are incorrect. See
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# http://sourceforge.net/tracker/index.php?func=detail&aid=2017795&group_id=121032&atid=689047
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#
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actionban = MNWLOGIN=`perl -e '$s=shift;$s=~s/([\W])/"%%".uc(sprintf("%%2.2x",ord($1)))/eg;print $s' '<mnwlogin>'`
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MNWPASS=`perl -e '$s=shift;$s=~s/([\W])/"%%".uc(sprintf("%%2.2x",ord($1)))/eg;print $s' '<mnwpass>'`
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PROTOCOL=`awk '{IGNORECASE=1;if($1=="<protocol>"){print $2;exit}}' /etc/protocols`
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if [ -z "$PROTOCOL" ]; then PROTOCOL=<protocol>; fi
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DATETIME=`perl -e '@t=gmtime(<time>);printf "%%4d-%%02d-%%02d+%%02d:%%02d:%%02d",1900+$t[5],$t[4]+1,$t[3],$t[2],$t[1],$t[0]'`
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<getcmd> "<mnwurl>?AT=2&AV=0&AgentEmail=$MNWLOGIN&AgentPassword=$MNWPASS&AttackerIP=<ip>&SrcPort=<srcport>&ProtocolID=$PROTOCOL&DestPort=<port>&AttackCount=<failures>&VictimIP=<myip>&AttackDateTime=$DATETIME" 2>&1 >> <tmpfile>.out && grep -q 'Attack Report Insert Successful' <tmpfile>.out && rm -f <tmpfile>.out
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# Option: actionunban
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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: See jail.conf(5) man page
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# Values: CMD
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#
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actionunban =
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[Init]
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# Option: port
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# Notes.: The target port for the attack (numerical). MUST be provided in
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# the jail config, as it cannot be detected here.
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# Values: [ NUM ] Default: ???
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#
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port = 0
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# Option: mnwlogin
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# Notes.: Your mNW login e-mail address. MUST be provided either in the jail
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# config or in a .local file.
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# Register at http://www.mynetwatchman.com/reg.asp
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# Values: [ STRING ] Default: (empty)
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#
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mnwlogin =
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# Option: mnwpass
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# Notes.: The password corresponding to your mNW login e-mail address. MUST be
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# provided either in the jail config or in a .local file.
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# Values: [ STRING ] Default: (empty)
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#
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mnwpass =
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# Option: myip
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# Notes.: The target IP for the attack (your public IP). Should be overridden
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# either in the jail config or in a .local file unless your PUBLIC IP
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# is the first IP assigned to eth0
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# Values: [ an IP address ] Default: Tries to find the IP address of eth0,
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# which in most cases will be a private IP, and therefore incorrect
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#
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myip = `ip -4 addr show dev eth0 | grep inet | head -n 1 | sed -r 's/.*inet ([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}).*/\1/'`
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# Option: protocol
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# Notes.: The protocol over which the attack is happening
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# Values: [ tcp | udp | icmp | (any other protocol name from /etc/protocols) | NUM ] Default: tcp
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#
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protocol = tcp
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# Option: agent
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# Default: Fail2ban
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agent = Fail2ban
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# Option: getcmd
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# Notes.: A command to fetch a URL. Should output page to STDOUT
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# Values: CMD Default: wget
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#
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getcmd = wget --no-verbose --tries=3 --waitretry=10 --connect-timeout=10 --read-timeout=60 --retry-connrefused --output-document=- --user-agent=<agent>
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# Alternative value:
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# getcmd = curl --silent --show-error --retry 3 --connect-timeout 10 --max-time 60 --user-agent <agent>
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# Option: srcport
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# Notes.: The source port of the attack. You're unlikely to have this info, so
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# you can leave the default
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# Values: [ NUM ] Default: 0
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#
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srcport = 0
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# Option: mnwurl
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# Notes.: The report service URL on the mNW site
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# Values: STRING Default: http://mynetwatchman.com/insertwebreport.asp
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#
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mnwurl = http://mynetwatchman.com/insertwebreport.asp
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# Option: tmpfile
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# Notes.: Base name of temporary files
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# Values: [ STRING ] Default: /var/run/fail2ban/tmp-mynetwatchman
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#
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tmpfile = /var/run/fail2ban/tmp-mynetwatchman
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