Recent Articles

Safe WordPress Install/Upgrade from Commandline using wp-cli

WordPress is a free and open source blogging tool and a content management system based on PHP and MySQL. It is the most popular blogging system in use on the web, started in 2003 with a single bit of code to enhance the typography of everyday writing and with just a few developers, it has […]

September 12, 2014 | By
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Shell Script to Check Linux System Health

This article we are introducing a shell script to perform linux system health check. This script collects system information and status like hostname, kernel version, uptime, cpu / memory / disk usage. Script uses hostname, uptime, who, mpstat, lscpu, ps, top, df, free, bc commands to get system information and cut, grep, awk and sed for […]

September 10, 2014 | By
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Colourful ! systemd vs sysVinit Linux Cheatsheet

systemd is the new init system, starting with Fedora and now adopted in many distributions like RedHat, Suse and Centos. Historically, most of us have been using traditional SysV init scripts normally residing in /etc/rc.d/init.d/. These scripts invoke a daemon binary which will then fork a background process. Even though shell scripts are very flexible, […]

September 5, 2014 | By
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Reset Forgotten Root Password - What changed in RHEL/CentOS 7.0

One of the many changes in Red Hat Enterprise Linux 7 / CentOS 7 is that it uses GRUB 2 and resetting the password is no longer performed in single-user mode as it was in GRUB included in the previous versions, because the root password is now required to operate in single-user mode as well […]

September 4, 2014 | By
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GoAccess - A Real Time Apache Web Access Log Analyzer

GoAccess is a free real-time web log analyzer and interactive viewer that runs in a terminal on Linux or BSD distribution. It provides fast and valuable HTTP statistics for system administrators that require a visual server report on the fly. It parses the specified web log file and outputs the data to the terminal. You […]

September 3, 2014 | By
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logcheck - A tool to Monitor Linux System Log Activity

Logcheck is a software package that is designed to automatically run and check system log files for security violations and unusual activity, it utilizes a program called logtail that remembers the last position it read from the log file. It can be used in several ways, from analyzing security or unusual activity in the syslog, […]

September 1, 2014 | By
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Awesome ! systemd Commands to Manage Linux System

Systemd is the new system and service manager for Linux. It is a replacement for init system and can manage system startup and services. It starts up and supervises the entire system. In article we are using centos 7.0 installed with systemd 216 version and the latest version is available for download from With new […]

August 29, 2014 | By
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Install libnss and Watch Netflix on Linux Ubuntu 14.0.4

Netflix is an American provider of on-demand Internet streaming media available to viewers in America and parts of Europe, the list of European country that it supports is expanding. It is the biggest such service on the internet having more than 50 million subscribers worldwide as of 2014. You can find more information on Netflix […]

August 28, 2014 | By
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How To Install Wine to Run Windows Software on Ubuntu

Wine is a free and open source application that aims to allow applications designed for Microsoft Windows to run on Unix-like operating systems. Wine also provides a software library, known as Winelib, against which developers can compile Windows applications to help port them to Unix-like systems. Wine is a compatibility layer. It duplicates functions of […]

August 27, 2014 | By
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How To Install / Upgrade systemd on RHEL/CentOS 7.0

Centos/RHEL already adopted using systemd from version 7.0. In this article, we explore how this new upgrade release systemd 216 can be installed. The new release of systemd brings some new features. New commands like networkctl are introduced in this new version. 1. Check Current systemd Version First of all, we proceed with checking the […]

August 25, 2014 | By
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How to Create, Mount and Extend xfs Filesystem

XFS is a high-performance 64-bit journaling file system created by SGI in 1993. It was introduced in the Linux kernel in 2001, XFS is supported by most Linux distributions, some of which use it as the default file system (RHEL/CentOS 7.0). XFS excels in the execution of parallel input/output (I/O) operations due to its design, […]

August 22, 2014 | By
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Viber 4.2 Released - How to Install on Ubuntu Linux

Viber is a cross-platform instant messaging VoIP application for smartphones developed by Viber Media. In addition to text messaging, users can exchange images, video and audio media messages. The client software is available for smartphone mobile devices as well as Windows and MAC desktop computers. It first requires installation on a phone in order to […]

August 19, 2014 | By
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8 Options to Trace/Debug Programs using Linux strace Command

The strace is the tool that helps in debugging issues by tracing system calls executed by a program. It is handy when you want to see how the program interacts with the operating system, like what system calls are executed in what order. This simple yet very powerful tool is available for almost all the […]

August 18, 2014 | By
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How to Change Hostname in RHEL / CentOS 7.0

You have probably needed to change the hostname of your CentOS 7 install for one reason or the other. Changing the hostname in CentOS 7 is now much simpler than ever. If you are ready open up your terminal and follow through this tutorial, and in less than 10 minutes you will have changed your […]

August 16, 2014 | By
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