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), optionally with backend parameters, see `man jail.conf` for usage and examples (systemd-journal[journalflags=1]).
REGEX:
- string
-
a string representing a 'failregex'
- filter
-
name of jail or filter, optionally with options (sshd[mode=aggressive])
- filename
-
path to a filter file (filter.d/sshd.conf)
IGNOREREGEX:
- string
-
a string representing an 'ignoreregex'
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
-
get version in machine-readable short format
- -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
- --no-check-all
-
Disable check for all regex's
- -o OUT, --out=OUT
-
Set token to print failure information only (row, id, ip, msg, host, ip4, ip6, dns, matches, ...)
- -i, --invert
-
Invert the sense of matching, to output non-matching lines.
- --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 <[email protected]>. Many contributions by Yaroslav O. Halchenko, Steven Hiscocks, Sergey G. Brester (sebres).
REPORTING BUGS
Report bugs to https://github.com/fail2ban/fail2ban/issues
COPYRIGHT
Copyright © 2004-2008 Cyril Jaquier, 2008- Fail2Ban Contributors
Copyright of modifications held by their respective authors. Licensed under the GNU General Public License v2 (GPL).