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Learn about some of the risks when choosing an alternative to a Raspberry Pi for your project.

When I teach programming classes, I find my students learn better when I include screen captures in my teaching materials. By showing step-by-step details using a digital projector, my students can visualize how the application works, making it quicker and easier for them to understand what I'm trying to explain. read more

News briefs for March 27, 2019.

From time to time, I get nostalgic about the video games I played during my childhood in the late '80s and the '90s. Although most of my old computers and game consoles are long gone, my Raspberry Pi can fulfill my retro-gaming fix. I enjoy the simple games included in Raspbian, and the open source RetroPie project helped me turn my Raspberry Pi into an advanced retro-gaming machine. read more

In this tutorial, we're going to show you how to install and configure the AWX on Ubuntu server 18.04. We're going to install the AWX with Nginx as a reverse proxy and built on the HTTPS secure connection.

Adding options to the kernel command line is a common task when debugging or experimenting with the kernel. The upcoming Fedora 30 release made a change to use Bootloader Spec (BLS). Depending on how you are used to modifying kernel command line options, your workflow may now change. Read on for more information. To determine […]

MSC’s rugged “MSC SM2S-ZUSP” SMARC module features a Zynq UltraScale+ MPSoC with 4x Cortex-A53, 2x Cortex-R5, GPU, and FPGA plus up to 8GB DDR4 and 64GB eMMC and optional WiFi/BT and carrier. MSC Technologies — a brand of Avnet Integrated Solutions — has launched the world’s first SMARC 2.0 form-factor module with Xilinx’s Zynq UltraScale+ […]

Kubespray, a community project that provides Ansible playbooks for the deployment and management of Kubernetes clusters, recently added support for the bare-metal cloud Packet. This allows Kubernetes clusters to be deployed across next-generation edge locations, including cell-tower based micro datacenters.

A confession: before I heard Bradley Kuhn's talk at Freenode.live last November, I didn't know that HDMI was a proprietary interface. I just assumed that HDMI was like VGA, USB and dozens of other standardized ways to connect the jacks on two devices through a cable with plugs at both ends. I did assume a cabal of companies was behind HDMI, but I didn't know that only "adopters" could make HDMI stuff, and that being an adopter required paying serious money to something called HDMI Licensing LLC.

OES’ $175 “Prime Series 1” dev board has a compute module with a quad-core Allwinner H5, a crypto chip, 512MB RAM, 8GB eMMC, and WiFi/BT. The dev board adds 3x MIPI-CSI, Ethernet, GSM/LTE, GPS, and more. On Mar. 29, Springfield, Virginia based startup Optimus Embedded Systems (OES) will launch the first of several Prime series […]

After taking a look at how curly braces ({}) work on the command line, now it’s time to tackle brackets ([]) and see how they are used in different contexts.

News briefs for March 26, 2019.

As the world's largest and one of the most influential open source foundations, the Apache Software Foundation (ASF) is home to more than 350 community-led projects and initiatives. The ASF's 731 individual members and more than 7,000 committers are global, diverse, and community-driven. read more

We've already discussed some of the basic loops used in the C programming language, including for, while, and do...while. In this part of our Linux C Programming tutorial series, we will show you how to use switch, break and continue statements in C.

Do you have an old Raspberry Pi lying around gathering dust, maybe after a recent Pi upgrade? Are you curious about BSD Unix? If you answered "yes" to both of these questions, you'll be pleased to know that the first is the solution to the second, because you can run NetBSD, as far back as the very first release, on a Raspberry Pi. read more

Kubernetes is a platform for reducing toil cunningly disguised as a platform for running containers. The element that allows for both running containers and reducing toil is the Kubernetes concept of a Controller.

News briefs for March 25, 2019.

When it comes to backing up a Fedora Silverblue system, some of the traditional tools may not function as expected. BorgBackup (Borg) is an alternative available that can provide backup capability for your Silverblue based systems. This how-to explains the steps for using BorgBackup 1.1.8 as a layered package to back up Fedora Silverblue 29 […]

There's an old saying, "anything worth doing, is worth automating"—or something like that. Downloading and reading Linux Journal always has been worth doing, and now you can automate it with our autolj script.

Axiomtek’s rugged, Linux-friendly “eBOX625-312-FL” is an Apollo Lake embedded PC with 2x GbE, 4x USB 3.0, 2x mini-PCIe, 3x serial, lockable HDMI, and a SATA bay. The eBOX625-312-FL is the typical, rugged industrial computer of our current era. There’s nothing particularly exciting about it, but assuming that it indeed offers “effective pricing,” this could be […]