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Top Forums Programming Regarding a GREAT site for understanding and Visualizing regex patterns. Post 303038850 by Neo on Monday 16th of September 2019 12:21:32 AM
Old 09-16-2019
Thanks Ravinder,

I generally use various online REGEX checkers when when I am writing REGEX expressions, mostly REGEX for PHP code.

This is the first one I have seen that has the "visualization" done like this, thanks for sharing.

The REGEX checkers I like the best have always been the ones where we can cut-and-paste our text into the checker and then see
the resulting matches so we can easily test the input versus the output when debugging.

Next time I need a REGEX I will also try this visualization tool.

Thanks for sharing.
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FAIL2BAN-CLIENT(1)						   User Commands						FAIL2BAN-CLIENT(1)

NAME
fail2ban-client - configure and control the server SYNOPSIS
fail2ban-client [OPTIONS] <COMMAND> DESCRIPTION
Fail2Ban v0.8.2 reads log file that contains password failure report and bans the corresponding IP addresses using firewall rules. OPTIONS
-c <DIR> configuration directory -s <FILE> socket path -d dump configuration. For debugging -i interactive mode -v increase verbosity -q decrease verbosity -x force execution of the server (remove socket file) -h, --help display this help message -V, --version print the version COMMAND
BASIC start starts the server and the jails reload reloads the configuration reload <JAIL> reloads the jail <JAIL> stop stops all jails and terminate the server status gets the current status of the server ping tests if the server is alive LOGGING set loglevel <LEVEL> sets logging level to <LEVEL>. 0 is minimal, 4 is debug get loglevel gets the logging level set logtarget <TARGET> sets logging target to <TARGET>. Can be STDOUT, STDERR, SYSLOG or a file get logtarget gets logging target JAIL CONTROL add <JAIL> <BACKEND> creates <JAIL> using <BACKEND> start <JAIL> starts the jail <JAIL> stop <JAIL> stops the jail <JAIL>. The jail is removed status <JAIL> gets the current status of <JAIL> JAIL CONFIGURATION set <JAIL> idle on|off sets the idle state of <JAIL> set <JAIL> addignoreip <IP> adds <IP> to the ignore list of <JAIL> set <JAIL> delignoreip <IP> removes <IP> from the ignore list of <JAIL> set <JAIL> addlogpath <FILE> adds <FILE> to the monitoring list of <JAIL> set <JAIL> dellogpath <FILE> removes <FILE> to the monitoring list of <JAIL> set <JAIL> addfailregex <REGEX> adds the regular expression <REGEX> which must match failures for <JAIL> set <JAIL> delfailregex <INDEX> removes the regular expression at <INDEX> for failregex set <JAIL> addignoreregex <REGEX> adds the regular expression <REGEX> which should match pattern to exclude for <JAIL> set <JAIL> delignoreregex <INDEX> removes the regular expression at <INDEX> for ignoreregex set <JAIL> findtime <TIME> sets the number of seconds <TIME> for which the filter will look back for <JAIL> set <JAIL> bantime <TIME> sets the number of seconds <TIME> a host will be banned for <JAIL> set <JAIL> maxretry <RETRY> sets the number of failures <RETRY> before banning the host for <JAIL> set <JAIL> addaction <ACT> adds a new action named <NAME> for <JAIL> set <JAIL> delaction <ACT> removes the action <NAME> from <JAIL> set <JAIL> setcinfo <ACT> <KEY> <VALUE> sets <VALUE> for <KEY> of the action <NAME> for <JAIL> set <JAIL> delcinfo <ACT> <KEY> removes <KEY> for the action <NAME> for <JAIL> set <JAIL> actionstart <ACT> <CMD> sets the start command <CMD> of the action <ACT> for <JAIL> set <JAIL> actionstop <ACT> <CMD> sets the stop command <CMD> of the action <ACT> for <JAIL> set <JAIL> actioncheck <ACT> <CMD> sets the check command <CMD> of the action <ACT> for <JAIL> set <JAIL> actionban <ACT> <CMD> sets the ban command <CMD> of the action <ACT> for <JAIL> set <JAIL> actionunban <ACT> <CMD> sets the unban command <CMD> of the action <ACT> for <JAIL> JAIL INFORMATION get <JAIL> logpath gets the list of the monitored files for <JAIL> get <JAIL> ignoreip gets the list of ignored IP addresses for <JAIL> get <JAIL> timeregex gets the regular expression used for the time detection for <JAIL> get <JAIL> timepattern gets the pattern used for the time detection for <JAIL> get <JAIL> failregex gets the list of regular expressions which matches the failures for <JAIL> get <JAIL> ignoreregex gets the list of regular expressions which matches patterns to ignore for <JAIL> get <JAIL> findtime gets the time for which the filter will look back for failures for <JAIL> get <JAIL> bantime gets the time a host is banned for <JAIL> get <JAIL> maxretry gets the number of failures allowed for <JAIL> get <JAIL> addaction gets the last action which has been added for <JAIL> get <JAIL> actionstart <ACT> gets the start command for the action <ACT> for <JAIL> get <JAIL> actionstop <ACT> gets the stop command for the action <ACT> for <JAIL> get <JAIL> actioncheck <ACT> gets the check command for the action <ACT> for <JAIL> get <JAIL> actionban <ACT> gets the ban command for the action <ACT> for <JAIL> get <JAIL> actionunban <ACT> gets the unban command for the action <ACT> for <JAIL> FILES
/etc/fail2ban/* AUTHOR
Written by Cyril Jaquier <cyril.jaquier@fail2ban.org>. Many contributions by Yaroslav O. Halchenko <debian@onerussian.com>. REPORTING BUGS
Please report bugs via Debian bug tracking system http://www.debian.org/Bugs/. COPYRIGHT
Copyright (C) 2004-2008 Cyril Jaquier Copyright of modifications held by their respective authors. Licensed under the GNU General Public License v2 (GPL). SEE ALSO
fail2ban-server(1) fail2ban-client v0.8.2 March 2008 FAIL2BAN-CLIENT(1)
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