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In this tutorial we will show you how to install Nagios on CentOS 7. Nagios is a powerful open source enterprise-class software that monitors network infrastructures, servers and applications.

A look at Adafruit's PiGRRL Zero vs. Hardkernel's ODROID-GO.

A versatile and powerful editor, vi includes a rich set of potent commands that make it a popular choice for many users. This article specifically looks at commands that are not enabled by default in vi but are nevertheless useful. The commands recommended here are expected to be set in a vi configuration file. Though it is possible to enable commands individually from each vi session, the purpose of this article is to create a highly productive environment out of the box.

This tutorial will teach you the following few things: Taking a screenshot of the lock screen and taking a screenshot of the login screen. Please note that we are performing the steps described in this tutorial on an Ubuntu 18.04 system.

StingRay is a new entry in the field of Linux-based chess software. It’s billed as a simple chess graphical user interface with basic functionality to run against UCI and XBoard engines.

In a "flipped classroom," students are introduced to content at home and then go to school ready to interact with teachers. Khan Academy video content is a popular resource for many flipped classrooms, and the concept behind it has revolutionized education for many students. As stated on its website, you can learn anything at Khan Academy—as long as you can access the video content it shares online.

Remembering Passwords is awful. It's not something anyone likes, and with people needing more online accounts than ever, it's becoming entirely unmanageable. Remember, using the same password twice is a BAD IDEA.

In this tutorial, we will walk you through on how to set up Apache Virtual Hosts on Debian 9.

VIDEO: Linus Torvalds thinks Intel has gotten better about keeping the Linux open-source community in the loop with CPU security problems, but it started out really badly. And it's still not fair that Linux has to fix hardware problems.

Linux and the open source ecosystem that surrounds it continue to do well. So well in fact that at the Open Source Summit here in Vancouver, BC, Linux Foundation Executive Director Jim Zemlin proclaimed 2018 would be the best year ever for his organization. "Open source continues to have an amazing impact on the world," Zemlin said during his opening keynote.

Most people find it difficult to differentiate between a pi and an Arduino. What most people do not understand is that an Arduino is a microcomputer while the Arduino is a micro-controller. This article is about laying out those differences and simplifying each bit by bit. Most probably some of you might have used a Pi and never used an Arduino.

Most of us surf the internet, make online purchases, and even pay bills using our mobile devices because they are handy and easily accessible. According to a Forrester study, The Digital Business Imperative, 43% of banking customers in the US used mobile phones to complete banking transactions in a three-month period.

At the Open Source Summit North America, one of the world's leading Linux kernel developers took issue with Intel's initial disclosure of the Meltdown and Spectre CPU vulnerabilities.

Browser will stop asking nicely for privacy protections. Mozilla says it will soon be modifying its Firefox browser to block all user tracking on websites by default.…

For the last 50 years, mainframe have literally been the big iron systems that have helped to power critical elements of IT infrastructure. Yet despite the core role that mainframes have held, the primary interface to the mainframe throughout its history has been the 'green screen' command line. At the Open Source Summit, the Linux Foundation's Open Mainframe project announced the new Zowe effort which for the first time brings a real graphical user interface to the mainframe.

MyWebSQL is a powerful web interface designed to help handle all aspects of your MySQL server through a web browser. Made to be fast, easy-to-use, and readily accessible from anywhere, MyWebSQL allows you to keep track on your databases from any location, through any device. And with support for various MySQL servers, you also don’t need to worry about it supporting the one you currently use. If you’re looking for a web management tool, but you need something other than phpMyAdmin, then this is a solid choice to go with. In this tutorial, we will show you how to install MyWebSQL on your CentOS 7 machine or VPS. The installation process is fairly simple, and will not take long.

In this tutorial, we will show you how to unzip files in Linux systems thought the command line using the unzip command.

In this edition of our open source news roundup, we take a look at Redis Labs' licensing woes, open source profiting from the cloud, making Windows games easier to run on Linux, and more.

Both the Linux kernel and the macOS kernel are UNIX-based. Some people say that macOS is "linux", some say that both are compatible due to similarities between commands and file system hierarchy. Today I want to show a little of both, showing the differences and similarities between Linux Kernel & Mac kernel like I mentioned in previous Linux kernel articles.

In previous installments of this series, you learned about directories and how permissions to access directories work. Most of what you learned in those articles can be applied to files, except how to make a file executable. So let's deal with that before moving on.