Recent Articles

Set Date And Time In Linux And Sync With Hardware (CMOS)

Why are the date and time important? Having the correct date and time in your Linux box is very important. When you use emails ,the default time used by the application is the system calendar's date and time. Unless otherwise you have specified a different time scale. If you work in a client server network, most of […]

May 18, 2011 | By
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Need For Filesystem Check / Repair ( fsck ) On Linux

Why fsck? Any Linux user must have experienced file corruptions and booting failures at least once in their life. Being an I.T professional for many years, I have encountered this problem many times. Linux comes with a handy command called 'fsck' to save you. Fsck stands for File System Consistency Checker. When and Where to use fsck? […]

May 18, 2011 | By
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What Is SYN Flood Attack? Detection & Prevention In Linux

What is SYN Flood Attack? A SYN flood attack is a form of denial-of-service attack in which an attacker sends a large number of SYN requests to a target system’s services that use TCP protocol. This consumes the server resources to make the system unresponsive to even legitimate traffic. This attack can occur on any services that […]

May 18, 2011 | By
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Mytop Tool - Monitor Performance Of MySql Linux Server

Mytop is a very useful program to see what all queries a server is currently processing as well as which user is executing them. Think of mytop as top for mysql. If you see a lot from one particular user, that means they are probably the hog. Mytop can also be useful for figuring out exactly which […]

May 16, 2011 | By
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All Stages of Linux Booting Process Explained

This article describes the linux booting process in detail, such as the steps involved, which scripts are run, which configuration files are read and their order, since the time of turning on the system till getting the login prompt. Although this article projects a general view of booting a Linux system,  some configuration files and commands can […]

May 16, 2011 | By
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How To Uninstall / Remove Tomcat From Linux Server

Apache Tomcat or simply Tomcat (formerly it was also known as Jakarta Tomcat) is an open source web server and servlet container developed by the Apache Software Foundation (ASF). Tomcat can be installed on CentOS/Redhat machine either using yum or from the source file. However, in this article, we will see, how we can uninstall/remove tomcat […]

May 16, 2011 | By
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How To Start / Stop Daemons In Linux

What is a Daemon? A 'daemon' (or you may call it a service) is a program designed to run in the background without the user's control. Daemons are a type of process recognized by a system whose parent process is init with PID 1. For all UNIX and Linux distributions, by default, init starts as the first process […]

May 16, 2011 | By
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38 Basic Linux Commands To Learn With Examples

Linux based Operating Systems are very powerful but their true power lies in the command line. There is a lot that you can do with the help of commands but can't otherwise (using GUI). In this article, we will find out about basic Linux commands that are used most frequently. Now, let's start from the […]

May 16, 2011 | By
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Rpmforge Repo : How To Install And Set Yum Priority

How to Install Rpmforge? Linux distributions namely CentOS and RHEL 5 use yum repositories for the management of software. Yum adds a new repository which is then used as a source to install binary software. Yum repository is configured using /etc/yum.conf file. Configuration also requires additional files which are read from the directories set by […]

May 16, 2011 | By
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How To Delete / Clear Linux Comand Line History With Examples

You may want to clear the history file and the screen for security reasons. Some Linux distributions may clear the screen when you logout but others do not. Many programs read input as a single line at a time. The GNU history library is able to keep track of those lines, associate arbitrary data with […]

May 15, 2011 | By
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Linux YUM Repositories Configuration / Add More Repositories

This article will show you how to set up repositories in YUM (Yellodog Updater Modified), the default package manager for Red Hat based Linux distributions. We will also discuss what the repositories are and why we need to set them up. Dependencies among packages Software packages in Linux often depend upon other packages to run […]

May 15, 2011 | By
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Examples : Binding Multiple IP to One Interface In Linux

Linux can be deployed as a very powerful web server. Sometimes, you may require to host multiple web sites on it. Hosting multiple sites on a single server is achieved through virtual hosting. For virtual hosting, multiple instances of the web server are run. The web service needs a specific port (80) to run and if there […]

May 14, 2011 | By
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Examples To List / Install / Remove / Configure Linux Kernel Module

Linux is a monolithic kernel. A monolithic kernel is a kernel architecture in which all the services of process management, filesystem management, I/O and device management run in the kernel space, i.e. the kernel is responsible for handling these services. So these are loaded into memory with the kernel, at the time of booting up. With […]

May 14, 2011 | By
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Enhanced Free Ping Utility In Linux - Sing Tool

Ping is a great utility to check the network connections and troubleshoot the network related problems. It uses ICMP (Internet Connection Message Protocol) packets to check if a system is up and running. But you cannot do much with ping command. SING (Send ICMP Nasty Garbage) tool is like PING, with certain enhancements over ping. […]

May 14, 2011 | By
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