07-07-2016
I want to if some one for example DOS to my server for 15 minute got in my black list
And after 15 minute was removed to black list
Is it possible to csf isnt it ?
But what do I have position auto to black list ?
For example I suppose in port 80 to 70 second have connection
It was drop correct but don't send it in iPio black list
To prevent DoS Attack the best and most firewall configurations , which is open source
Last edited by mnnn; 07-07-2016 at 04:18 AM..
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I would like to more about how csf &apf firewalls work ? how they use iptables right ? why we need to use them when we got iptables ?:confused: (0 Replies)
Discussion started by: nitin09
0 Replies
2. Shell Programming and Scripting
Hi
I need to append the following block of statements in the middle of the file:
#
openpipe tsdbdwn2
set -x
exec >> /tmp/tsdbdwn2.fifo 2>&1
#
This needs to be appended right after another block of statements:
if test $# -eq 0 ;then
echo "Safety check - do you really wish to run" $0 "... (5 Replies)
Discussion started by: aoussenko
5 Replies
3. UNIX for Advanced & Expert Users
I was reading a book on UNIX internals "The design of the UNIX Operating system." There are two memory structures that are confusing me:
1) Buffer cache
2) Inode cache
My questions are
1) Does a process get both buffer cache and Indoe cache allocated when it opens/creates a file?
2) if no,... (1 Reply)
Discussion started by: sreeharshasn
1 Replies
4. Shell Programming and Scripting
Hi ,
Can you pleas help me with below requirement?
There is only one big line in the file. I need to parse block by block(particular tag values, 'Val' in below case) to get different parameters.
Example:-
Portion of the Input string:-
<?xml version="1.1" encoding="UTF-8"?> <Data><Val ... (4 Replies)
Discussion started by: kmajumder
4 Replies
5. Shell Programming and Scripting
Hei buddies,
Need ur help once again.
I have a file which has bunch of lines which starts from a fixed pattern and ends with another fixed pattern.
I want to make use of these fixed starting and ending patterns to select the bunch, one at a time.
The input file is as follows.
Hi welcome... (12 Replies)
Discussion started by: anushree.a
12 Replies
6. UNIX for Advanced & Expert Users
I have a "main" file which has blocks of data for each user defined by tags BEGIN and END.
BEGIN
ID_NUM:24879
USER:abc123
HOW:47M
CMD1:xyz1
CMD2:arp2
STATE:active
PROCESS:id60
END
BEGIN
ID_NUM:24880
USER:def123
HOW:4M
CMD1:xyz1
CMD2:xyz2
STATE:running
PROCESS:id64
END (7 Replies)
Discussion started by: grep_me
7 Replies
7. Shell Programming and Scripting
I want to process a file block by block using sed, and if that block does not contain two patterns, then that complete block has to be printed.
See below for the example data.
................................server 1...............................
running process 1
running... (8 Replies)
Discussion started by: Kesavan
8 Replies
8. Cybersecurity
It appears i cant connect linux VPS server via SSH or i cant SCP any file to it and i cant wget any file TO it (from inside it) while CSF (Config Server Firewall, LFD is running. Just after isntall in default configuration and after changing TESTING mode to LIVE mode.
Trying to wget & install... (1 Reply)
Discussion started by: postcd
1 Replies
9. Shell Programming and Scripting
I have a file say "SAMPLE.txt" with following content,
P1
10,9:6/123456
P2
blah blah
P1
10,9:5/98765
P2
blah
blah
P1
blah blah
P2
I want a output file say "RESULT.txt" as,
Value1:123456
Value2:98765
Value3:NULL (17 Replies)
Discussion started by: garvit184
17 Replies
10. UNIX for Dummies Questions & Answers
I need to search for a block with the starting pattern say
"tabId": "table_1", and ending pattern say "]"
and then add a few lines before "]"
"block1":"block_111"
"tabId": "table_1",
"title":"My title"
.....
....
}]
how do I achieve it using awk and sed.
Thanks,
Lakshmi (3 Replies)
Discussion started by: Lakshmikumari
3 Replies
LEARN ABOUT REDHAT
pnmcrop
pnmcrop(1) General Commands Manual pnmcrop(1)
NAME
pnmcrop - crop a portable anymap
SYNOPSIS
pnmcrop [-white|-black|-sides] [-left] [-right] [-top] [-bottom] [pnmfile]
All options may be abbreviated to their shortest unique prefix or specified with double hyphens.
DESCRIPTION
Reads a PBM, PGM, or PPM image as input. Removes borders that are the background color, and produces the same type of image as output.
If you don't specify otherwise, pnmcrop assumes the background color is whatever color the top left and right corners of the image are and
if they are different colors, something midway between them. You can specify that the background is white or black with the -white and
-black options or make pnmcrop base its guess on all four corners instead of just two with -sides.
By default, pnmcrop chops off any stripe of background color it finds, on all four sides. You can tell pnmcrop to remove only specific
borders with the -left, -right, -top, and -bottom options.
If you want to chop a specific amount off the side of an image, use pnmcut.
If you want to add different borders after removing the existing ones, use pnmcat or pnmcomp.
OPTIONS
-white Take white to be the background color. pnmcrop removes borders which are white.
-black Take black to be the background color. pnmcrop removes borders which are black.
-sides Determine the background color from the colors of the four corners of the input image. pnmcrop removes borders which are of the
background color.
If at least three of the four corners are the same color, pnmcrop takes that as the background color. If not, pnmcrop looks for two
corners of the same color in the following order, taking the first found as the background color: top, left, right, bottom. If all
four corners are different colors, pnmcrop assumes an average of the four colors as the background color.
The -sides option slows pnmcrop down, as it reads the entire image to determine the background color in addition to the up to three
times that it would read it without -sides.
-left Remove any left border.
-right Remove any right border.
-top Remove any top border.
-bottom
Remove any bottom border.
-verbose
Print on Standard Error information about the processing, including exactly how much is being cropped off of which sides.
SEE ALSO
pnmcut(1), pnmfile(1), pnm(5)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
18 March 2001 pnmcrop(1)