Tutorials

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Snapshots
Snapper is a command-line program that allows you to create, delete, and compare snapshots of your filesystem.

How to Easily Roll Back Changes with Snapper

One thing a Linux sysadmin must know how to do is recover from a change gone bad. It happens. You install, upgrade, or configure a system or service...
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The Linux grep tool searches for patterns inside of files.
The Linux grep tool searches for patterns inside of files.

Beginning Grep for Linux SysAdmins

GNU grep is an amazing power tool for finding words, numbers, spaces, punctuation, and random text strings inside of files, and this introduction...
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Node.js
In the second part of this introduction to using Node.js, Paul Brown shows how to create a single-page web application.

Get Started Writing Web Apps with Node.js: Using the All Powerful NPM

In a previous article, I provided a quick introduction to Node.js and explained what it is, what it does, and how you can get started using it. I...
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Smart tv
Android for Pine64 doesn’t come with Google apps preloaded so you will have to install a few apps to get things set up.

Turn Your Feature TV Into A Smart TV For $30

Do you have an HDMI-enabled dumb TV sitting around that needs a dedicated set-top box or game console to be used? Are you planning to buy a new smart...
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GNOME Shell extensions
Jack lists 10 GNOME Shell Extensions to help make your desktop experience more efficient, productive, and enjoyable.

10 GNOME Shell Extensions You Should Be Using

When GNOME Shell (aka GNOME 3) dropped into the world of Linux, many criticized it for not being flexible enough. The new-look GNOME was seen as a...
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Dstat – A Resourceful Tool to Monitor Linux Server Performance in Real-Time

Some of the popular and frequently used system resource generating tools available on the Linux platform include vmstat, netstat, iostat, ifstat and ...
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Node.js framework
Node.js is actually JavaScript on steroids and has been expanded and enhanced to make building frameworks for complex, interactive websites easy.

How to Get Started Writing Web Applications with Node.js

Let's define Node.js in simple terms: Node.js allows you to run JavaScript on your server without a web browser. That's it. Put like that, it sounds...
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Linux Foundation Certified System Administrator: Theary Sorn

The Linux Foundation offers many resources for developers, users, and administrators of Linux systems. One of the most important offerings is its...
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dig utility
Chris Binnie explains how dig syntax differs from other DNS lookup packages and offers some time-saving examples.

Dig Into DNS: Part 2

In the first article in this series, I provided an introduction to the powerful dig utility and its uses in performing DNS lookups. For those who...
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How To Install Elasticsearch, Logstash, and Kibana (ELK Stack) on CentOS/RHEL 7

If you are a person who is, or has been in the past, in charge of inspecting and analyzing system logs in Linux, you know what a nightmare that task...
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