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Picture speak more than words and the below picture says all about the working of Linux. Understanding Linux ShellRead Also5 Shell Scripts to Learn Shell Programming – Pa

In this post will guide you simple steps to reset forgotten root password in RHEL, CentOSand Fedora Linux with example. There are various ways to reset root password which are.Booting into sin

This article shows you several practical examples on how to perform various backup operations of MySQL databases using mysqldump command and also we will see how to restore them with the help of mys

Rsync (Remote Sync) is a most commonly used command for copying and synchronizingfiles and directories remotely as well as locally in Linux/Unix systems. With the help ofrsync command you can co

This tutorial guides you how firewall works in Linux Operating system and what is IPTablesin Linux? Firewall decides fate of packets incoming and outgoing in system. IPTables is a rule based firewal

SSH (Secure Shell) is an open source network protocol that is used to connect local or remote Linux servers to transfer files, make remote backups, remote command execution and other network related

We have recently installed Ubuntu 12.10 Desktop and Ubuntu 12.10 Server, we have nowhere asked to supply root password during installation. Generally in Linux, root user does exist and we need t

This howto guide explains you’ll how to install Apache Server with latest MySQL 5.5.32 andPHP 5.5.0 versions with php required following modules on RHEL 6.4/6.3/6.2/6.1/6.0/5.9/5.8/5.6, CentOS 6.4

This howto guide explains more deeply on how to install LEMP (Linux, Nginx, MySQL, PHP) on pre-installed Linux servers and installation instructions can be used on various Linux distribution such as

Database is a structured set of data stored electronically. The concept of database was known to our ancestors even when there were no computers, however creating and maintaining such database was v

In this article we are going to review some of the useful and frequently used Linux or Unixcommands for Linux System Administrators that are used in their daily life. This is not a complete but it’s

ifconfig in short “interface configuration” utility for system/network administration inUnix/Linux operating systems to configure, manage and query network interface parameters via command line in

Well, on the internet you will find a number of good and better ways to install WordPress on Linux, but this installation guide is prepared for my future reference as well as for those beginners who a

使用*nix系统已经有一段时间了。但还是有一些命令是被我一直忽略的，真希望我能早几年发现这些命令。1. man ascii这个命令会打印出八进制、十六进制和十进制的ASCII码表。难以置信我是一个月之前才知道这个命令的。我总是使用google来查询ASCII码表。这个命令其实更方便。ASCII(7)           BSD Miscellaneous Infor

It’s really very tough job for every System or Network administrator to monitor and debugLinux System Performance problems every day. After being a Linux Administrator for 5 years in IT industry

This article explains how quickly you can learn to install, remove, update and searchsoftware packages using apt-get and apt-cache commands from the command line. This article provides some useful

In this post I will be discussing the Scripts from the Mathematical and Number point of view. Although I have posted a more complex script (Simple Calculator) in the previous post, but on a user

The concept of creating or configuring multiple IP addresses on a single network interface is called IP aliasing. IP aliasing is very useful for setting up multiple virtual sites on Apacheusing one

DenyHosts is an open source and free log-based intrusion prevention security program forSSH servers developed in Python language by Phil Schwartz. It is intended to monitor and analyzes SSH se

Fail2ban is an open source free intrusion prevention framework developed in python programming language. Fail2ban operates by monitoring log files such as/var/log/pwdfail, /var/log/auth.log, /var/lo

Today, everyone knows that Linux systems comes with root user access and by default theroot access is enabled for outside world. For security reason it’s not a good idea to have sshroot access ena

Everybody says that Linux is secure by default and agreed to some extend (It’s debatable topics). However, Linux has in-built security model in place by default. Need to tune it up and customize as

This article is an extension of our First article Understand Linux Shell and Basic Shell Scripting – Part I, where we gave you a taste of Scripting, continuing that we won’t disappoint you in this a

The Previous following articles of ‘Shell Scripting‘ series were highly appreciated and hence I am writing this article to extend the never ending process of learning.Understand Basic Linu

In my earlier article I’ve explained you all about how to protect Apache server fromMalicious and DOS attacks using mod_security and mod_evasive. Now again I have come up with another great topic

For any person, who does not have a sound knowledge of Linux Operating System andLinux File System, dealing with the files and their location, their use may be horrible, and a newbie may really mess

mysqladmin is a command-line utility the comes with MySQL server and it is used byDatabase Administrators to perform some basic MySQL tasks easily such as setting root password, changing root pass

Linux Operating System comes with Kill command to terminate a process. The command makes it possible to continue running the server without the need of reboot after a major change/update. Here comes t

DenyHosts is an open source and free log-based intrusion prevention security program forSSH servers developed in Python language by Phil Schwartz. It is intended to monitor and analyzes SSH server

StartingThe question is simple: how does linux execute my main()?Through this document, I'll use the following simple C program to illustrate how it works. It's called "simple.c"main(){