Archive for the ‘LINUX’ Category

In this article i will explain how you can encrypt your Linux hard drive or Linux Drive or Partition using LUKS.I will create a partition /dev/sda2 here and then  I will show you how to encrypt this partition using LUKS or you can say how to password protect this drive using LUKS.I will explain the complete procedure in few simple steps.So you need to just read each and every line carefully and you will be able to do this task easily.



This is my first tutorial on Firewall configuration in Linux using IPTABLES. In this tutorial we will learn how to use and configure iptables to secure any server or any network.We will learn to secure server and network infrastructure. Firewall is an integrated part of computer system or Network infrastructure designed to allow authorized communication and block unauthorized access.We will learn how to allow any specific ip using iptables and also learn how to deny any specific ip address.

.We will learn how to see list of iptables rules.
.We will also learn how to Flush iptables rules.
.we will also set default rules for firewall.
.We will learn to allow internal traffic on loopback device.
.We also learn how to allow established connections.
.We see rules to Lock all NULL Packets.
.We will also learn to Block XMAS Packets using Iptables.

This article is all about Linux System Administrator Interview question.Here i will discuss all the questions which mainly asked during Linux system admin interviews.I will highlight the questions which generally all Linux system admins have faced during his interview.


In this tutorial we will learn and try to understand the types of files in Linux and how to identify them all.Before using any operating system we must know about the types of files available in those operating system.Like other OS Linux OS also has some files and each files have different properties and assigned for different task.

Types of files in linux.

The following are the list of file types, and their associated character:

• – regular file
• d directory
• b block device
• c character device
• l symbolic link
• s socket link, also called a Unix networking socket
• p first-in first-out (FIFO) buffer, also called a named pipe