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Monday, 16 June 2014

Tools for creating TCP/IP packets

hping ( http://www.hping.org/ ) hping is a command-line oriented TCP/IP packet assembler/analyzer. The interface is inspired to the ping(8...

What is TTL - "Time To Live"

Have you ever observed the output of ping command … and wonder what’s this “TTL” stand for Pinging www.google.com [72.14.205.104] with 32...

How To Setup Local YUM Server Repository In RedHat Enterprise Linux 6

Insert RHEL 6 DVD into the system # mkdir /rhel6/dvd # cp -rvfp/media/RHEL6DVD /rhel6/dvd # cd /rhel6/dvd/Packages # rpm -ivh createrepo-0...

Installing Apache And Configuring YUM Client Repository

# yum install httpd* -y # vim /etc/httpd/conf/httpd.conf DocumentRoot /rhel6 <Directory /rhel6> ...

Some History Command Hacks

How to display TIMESTAMP in history # export HISTTIMEFORMAT='%F %T ' # history (In the output you will find date & time b...

SSH Server Hardening

To Harden the SSH Connections below are the steps, you need to follow : # vim /etc/ssh/sshd_config Port 2299 (Change the standa...

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