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AWS SNS is a Simple Notification Service. It can be used by Cloudwatch to send alert emails. In this article, we will create an SNS topic using Cloudformation and subscribe to an email endpoint.

This article provides an overview of Java development on Fedora Linux. It includes a demonstration using the game Shattered Pixel Dungeon.

When I’m not at work on my Linux desktop, you can usually find me writing code for a legacy 16-bit system. FreeDOS is an open source DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or develop embedded systems. Any program that works on MS-DOS should also run on FreeDOS.

SAR also know as a "System Activity Report" is a system resource monitoring tool for Linux operating systems. In this tutorial, we will show you how to install and use SAR to monitor system performance.

Most container work is done with Linux, but some jobs are also done with Windows-based containers, and now Red Hat makes it possible to manage both with Kubernetes via OpenShift.

Project wins sponsorship, and Torvalds is interested, but can it succeed without the mothership's cooperation? Japan-based developer Hector Martin has formally kicked off the crowdfunded Asahi project, which aims to get Linux running on Arm-based Apple Silicon Macs.…

Welcome to our catalog of 150 open-spec, maker-oriented single board computers that run Linux or Android. We have updated prices and descriptions and enhanced our comparison spreadsheet of major features. The following summaries of 150 community-backed and predominantly open-spec Linux/Android hacker boards under $200 are listed in alpha order. We have updated the summaries with […]

R2DBC uses declarative techniques to create 'more powerful, efficient and scalable JVM solutions'. MariaDB has released a connector for R2DBC in a bid to make its open-source relational database more friendly to the Java developer community.…

Matomo formerly known as Piwik is an open-source analytics application for the Linux operating system. It is very similar to Google Analytics that helps you to tracks and display the location of user visits.

On Indiegogo: a $134 “Over:Board” Mini-ITX carrier for the Raspberry Pi CM4 with a full-sized PCIe slot, GbE, COM, 2x HDMI, a USB 2.0 hub, USB-based SATA and audio, an RTC, and a 24V ATX input. In October, we covered a Turin Pi 2 Mini-ITX carrier board that can cluster up to four Raspberry Pi […]

Akari’s $69-and-up “Industrial 5G/4G Raspberry Pi Base Shield” has launched on Kickstarter with an M.2 slot for 5G and a mini-PCIe slot for 4G/NB-IoT. The kit offers 15KV ESD protection, RTC, DIO, USB, and serial I/O. A two-year old Japanese firm called Akari has gone to Kickstarter to launch a 5G/4G add-on for the Raspberry […]

In this article, the newest compatibility feature for gaming will be introduced and explained for all you dedicated video game fanatics.  In recent years we have made leaps and strides on making Linux and Unix systems more accessible for everyone. Now we come to a commonly asked question, can we play games on Linux? Well, of course! And almost, let me explain. 

I taught myself about programming back in elementary school. My first programs were on the Apple II, but eventually, I learned C by reading books and practicing. And the best way to practice programming is to write sample programs that help exercise your new knowledge. read more

Git is a distributed version control system. It is used for tracking changes in any files. It was designed for coordinating work among programmers operating on source code during the software development process. In this article, I will show you the commands to perform basic operations on a Git repository.

The end of the year is the perfect time to look back and explore where we've been and where we're going in the Kubernetes world. I particularly want to focus on the ecosystem that formed around Kubernetes in 2020, which several great articles on Opensource.com covered. I'll review them in the order they were published.

Linus Torvalds has been back at work for a week and already has a second release candidate ready. What’s your excuse? Linux overlord Linus Torvalds has urged developers to “crawl out from under all the xmas wrapping paper piles and go test” after releasing release candidate two of version 5.11 of the Linux kernel.”…

I love Python, and I've been learning it for a while now. Some time ago, I wrote a Python script where I needed to resize a bunch of images while at the same time keeping the aspect ratio (the proportions) intact. So I looked around and found Pillow, a Python imaging library and "friendly fork" of an old library just called PIL. 

All Things Open, a technology conference held in October every year, is always a wonderful learning experience. For 2020, the conference shifted to an online format, which had its ups and downs. The chance encounters with acquaintances in the hallways and having lunch with friends were noticeably absent, but the learning experience was as good as always. Honestly, in some ways, it was better because everyone got a front-row seat, and there were no standing-room-only talks.

I have always been fascinated with the night sky. When I was younger, the only reference materials available were books, and they seemed to depict a sky that looked different from the one I saw from my home.

I have been writing a series of articles about solving a nice, small, and somewhat unusual problem in different programming languages (Groovy, Python, and Java so far).