Fail2ban monitors log files and temporarily orpersistently bans failure-prone addresses byupdating existing firewall rules. The softwareallows easy specification of different actions tobe taken such as to ban an IP address usingiptables or hostsdeny rules, or simply to send anotification email. It supports many services, andconfiguration can be easily extended formonitoring any other ASCII file. All filters andactions are given in the configuration files, thusfail2ban can be adopted to be used with a varietyof files and firewalls.
Hello, my fail2ban service is running (ps aux)
When i do:
fail2ban-client status
it returns:
ERROR Unable to contact server. Is it running?
same message on fail2ban restart.
In /etc/fail2ban/fail2ban.conf i see this line:
socket = /var/run/fail2ban/fail2ban.sock
but this file does... (1 Reply)
Solved with iptables.
Many thanks...
Hello,
Objective:
What I would like to accomplish is :
- To read file1 line by line and search each word in file2.
- To grab corresponding ip addresses found in file2
- To send related ip addresses to fail2ban (not iptables)
By this way, when I... (5 Replies)
Hello,
What I would like to do is a shell script which will read a database file, then it will compare the current date/hour/minute in each line existing in the database file.
Today is 20140305 (year_month_day) & assume that the time is 15:11 at the moment.
under /var/log/
database.txt
... (5 Replies)
Hi all. I am using Cygwin in Windows 7 and am trying to setup fail2ban so that I can ban foreign IP addresses under SSH, also getting email notifications. I downloaded fail2ban and installed it. I then created jail.local copy from jail.conf and changed some values in jail.local. Now when I try to... (2 Replies)
FAIL2BAN-REGEX(1) User Commands FAIL2BAN-REGEX(1)NAME
fail2ban-regex - test Fail2ban "failregex" option
SYNOPSIS
fail2ban-regex [OPTIONS] <LOG> <REGEX> [IGNOREREGEX]
DESCRIPTION
Fail2Ban reads log file that contains password failure report and bans the corresponding IP addresses using firewall rules.
This tools can test regular expressions for "fail2ban".
LOG:
string a string representing a log line
filename
path to a log file (/var/log/auth.log)
"systemd-journal"
search systemd journal (systemd-python required)
REGEX:
string a string representing a 'failregex'
filename
path to a filter file (filter.d/sshd.conf)
IGNOREREGEX:
string a string representing an 'ignoreregex'
filename
path to a filter file (filter.d/sshd.conf)
OPTIONS --version
show program's version number and exit
-h, --help
show this help message and exit
-c CONFIG, --config=CONFIG
set alternate config directory
-d DATEPATTERN, --datepattern=DATEPATTERN
set custom pattern used to match date/times
--timezone=TIMEZONE, --TZ=TIMEZONE
set time-zone used by convert time format
-e ENCODING, --encoding=ENCODING
File encoding. Default: system locale
-r, --raw
Raw hosts, don't resolve dns
--usedns=USEDNS
DNS specified replacement of tags <HOST> in regexp ('yes' - matches all form of hosts, 'no' - IP addresses only)
-L MAXLINES, --maxlines=MAXLINES
maxlines for multi-line regex.
-m JOURNALMATCH, --journalmatch=JOURNALMATCH
journalctl style matches overriding filter file. "systemd-journal" only
-l LOG_LEVEL, --log-level=LOG_LEVEL
Log level for the Fail2Ban logger to use
-v, --verbose
Increase verbosity
--verbosity=VERBOSE
Set numerical level of verbosity (0..4)
--verbose-date, --VD
Verbose date patterns/regex in output
-D, --debuggex
Produce debuggex.com urls for debugging there
--print-no-missed
Do not print any missed lines
--print-no-ignored
Do not print any ignored lines
--print-all-matched
Print all matched lines
--print-all-missed
Print all missed lines, no matter how many
--print-all-ignored
Print all ignored lines, no matter how many
-t, --log-traceback
Enrich log-messages with compressed tracebacks
--full-traceback
Either to make the tracebacks full, not compressed (as by default)
AUTHOR
Written by Cyril Jaquier <cyril.jaquier@fail2ban.org>. Many contributions by Yaroslav O. Halchenko and Steven Hiscocks.
REPORTING BUGS
Report bugs to https://github.com/fail2ban/fail2ban/issues
COPYRIGHT
Copyright (C) 2004-2008 Cyril Jaquier, 2008- Fail2Ban Contributors
Copyright of modifications held by their respective authors. Licensed under the GNU General Public License v2 (GPL).
SEE ALSO fail2ban-client(1)fail2ban-server(1)fail2ban-regex 0.10.2 January 2018 FAIL2BAN-REGEX(1)