I want to create a file, to save a list of fail2ban blocked ip addresses. So I thought I'd create a loop that will check with fail2ban every minute, and write the ip addresses to a file.
I used tee -a to append, not re-write the file every minute. Of course the problem with this approach is that ~/ips is filled with duplicates every minute.
Is there a way to tell tee not to write an ip address in the file, if it already exists? Of course there's a good chance my whole approach is completely wrong, so I'm open to suggestions.
Hi Gurus,
I had a question regarding avoiding duplicates.i have a file abc.txt
abc.txt
-------
READER_1_1_1> HIER_28056 XML Reader: Error occurred while parsing:; line number ; column number
READER_1_3_1> Sun Mar 23 23:52:48 2008
READER_1_3_1> HIER_28056 XML Reader: Error occurred while... (7 Replies)
Hi all.
I want to check the free space on a given FS and process the output. Right now, I'm using a temp file to avoid using df twice. This is what I'm doing
#!/usr/bin/ksh
...
df -k $FS_NAME > $TMP_FILE 2>&1
if ]; then
RESULT="CRITICAL - $(cat $TMP_FILE)"
else
cat $TMP_FILE | ...... (3 Replies)
Good afternoon.
I am a newbie.
We just had a potentially big problem (negated to having good backups).
Basically, there is an option in SAM, to delete all the data from the system that a user ever created.
Lo and behold, silly me, I choose that option, and all sorts of needed files... (5 Replies)
Guys
following lines help me in getting numbers from PID column ,to be thrown into first column of a CSV file.
COLUMNS=2047 /usr/bin/ps -eo pid,ppid,uid,user,args | grep -v "PID" > /tmp/masterPID.txt
cat /tmp/masterPID.txt|while read line
do
PID=`echo $line|awk '{print $1}'`
echo "$PID"... (4 Replies)
Hi Everyone,
# cat a.txt
94,aqqc,62345907,
5,aeec,77,
# cat 1.pl
#!/usr/bin/perl
use strict;
use warnings;
use Date::Manip;
open(my $FA, "/root/a.txt") or die "$!";
while(<$FA>) {
chomp;
my @tmp=split(/\,/, $_);
if (index($tmp, "qq") ne -1) {
... (4 Replies)
Hi alll
I have a file with following kind input
I want in output duplicates should not be there but there should be numbering mentioned before that like (4 Replies)
Hi all
I have a file with following input
It contains 5 columns
gene name drug drug ID disease approved
Now the same gene is repeated many times with different data in column2,3 ,4,5
I want to arrange dat in such a way that there shuld be one entry in the column(no... (2 Replies)
Hello,
I am trying to run some code on Matlab over ssh . The code takes around 5-6 hours to complete. so after giving the command to run it , I locked my machine and then went off to sleep at night, only to discover in the morning that I get this message :
...Code running, partial results... (1 Reply)
Hello,
I have been working on script in which search and replace the multiple pattern.
1. update_params.sh read the multiple pattern from input file ParamMapping.txt(old_entry|New_entry) and passing this values one by one to change_text.sh
2. change_text.sh read... (0 Replies)
Discussion started by: ketanraut
0 Replies
LEARN ABOUT CENTOS
fail2ban-regex
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)