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UNIX – Fork Explained

Mr. Peabody Explains fork() Introduction How Windows Does It How Unix Does It So Why Do People Want the Unix Way? How does it work in Perl? Introduction UNIX – Fork Explained Say, Mr Peabody. I was just reading through the Perl 5.6 release notes and noticed that a new function called fork() is now […]
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Ubuntu – Which Process is Using a port?

Ubuntu – Which Process is Using a port? 1- Find what application/process is using the pro, type: sudo netstat -lpn |grep :8080 and press Enter. You will get an output similar to this one tcp6       0      0 :::8080                 :::*                    LISTEN      6782/java 2- I have got the process Id, which is 6782, now this is the […]
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Heart Bleed – Exploit Example Code

Heart Bleed – Exploit Example Code If you need to test your server for the vulnerability, here is a simple Python script… [python] #!/usr/bin/python import sys import struct import socket import time import select import re from optparse import OptionParser options = OptionParser(usage=’%prog server [options]’, description=’Test for SSL heartbeat vulnerability (CVE-2014-0160)’) options.add_option(‘-p’, ‘–port’, type=’int’, default=443, […]
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Perl – Compare Array Contents when length is identical and order matches

Perl – Compare Array Contents when length is identical and order matches Comparing arrays side by side. Do they match or dont they? @a=(1,0,1,0,0); @b=(0,0,1,0,0); NO! @arr1=(0,1,1,1,1,1,0,1); @arr2=(0,1,1,1,1,1,0,1); use Algorithm::Diff qw( LCS_length); my $arr_count1 = @arr1; my $arr_count2 = @arr2; if($arr_count1 != $arr_count2) { print “NOMATCH\n”; ## NO MATCH } else { $count = LCS_length […]
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