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In my last few articles ("Let's Go to Mars with Martian Lander" and "Mars Lander, Take II: Crashing onto the Surface"), I've been building a variant on the classic video game Lunar Lander, with a few simplificatio

In my previous article, I talked about IoT (Internet of Things) and connecting physical objects ("things") to the internet. I've discussed how Mongoose OS, an open source operating system for IoT, makes programming microcontrollers in JavaScript easy for both newbies and professional developers. read more

Whenever it's required to take a look at the contents of a directory on the command line in Linux, ls is the command that's used. It lists the contents sorted in alphabetical order. While that's the tool's basic usage, it offers a plethora of features (in the form of command line options) that help you in several circumstances. In this tutorial, we will discuss the usage of some of these command line options through easy to understand examples.

CNC Design’s “Pulse Train Hat” is a Raspberry Pi add-on that generates variable frequency pulses for automation systems such as stepper/servo motors. CNC Design Limited has launched a Pulse Train Hat (PTHAT) add-on board for the Raspberry PI designed to “make motor control easy, fast and accurate.” The Raspberry Pi HAT compliant board lets customers […]

In early 2015, I decided to leave my job, a job that I'd been at for just over two years. Nobody among my family and friends was surprised that I was pursuing another position. Making this move was a common thing to do, especially in the technology industry where we tend to change jobs frequently. read more

D3 Engineering’s “DesignCore RVP-TDA2x Development Kit for ADAS” taps TI’s TDA2x, Jacinto 6, or AM562x, and offers a 3GHz FPD-Link III video input. D3 Engineering’s DesignCore RVP-TDA2x Development Kit for ADAS is a Rugged Vision Platform (RVP) development kit designed for evaluating ADAS (Advanced Driver Assistance Systems) technology under realistic on-vehicle conditions. Applications include front […]

When I was six years old, I had a music box. I'd wind it up, and a ballerina revolved on top of the box while a mechanism inside plinked out "Twinkle, Twinkle, Little Star." The thing must have been godawful tacky, but I loved that music box, and I wanted to know how it worked. Somehow I got it open and was rewarded with the sight of a simple device—a metal cylinder the size of my thumb, studded so that as it rotated, it plucked the teeth of a steel comb and made the notes. read more

Kubernetes, the open-source system for managing Docker and Rkt containers across private, public, and hybrid cloud environments, grows every more popular. So, it's no surprise that Red Hat, with its intention to become a cloud power, is embracing OpenShift Container Platform 3.5. Red Hat wants you to manage your cloud containers with OpenShift Container Platform 3.5.

iWave’s rugged “iW-RainboW-G21M-Q7” COM debuts the octa-core Renesas RZ/G1H, and adds 2GB DDR3, 4GB eMMC, and support for GbE, SATA 3.1, USB 3.0, and PCIe. iWave’s Qseven 2.0 form-factor iW-RainboW-G21M-Q7 computer-on-module, also referred to as the “RZ/G1H SOM,” appears to be the first embedded board showcasing the recently announced, octa-core RZ/G1H SoC from Renesas.

A primitive is a basic shape that has a unique polynomial equation within a CAD (Computer-Aided Design) software package used for geometric modeling of more complex shapes. Examples include an ellipse, a sphere, a torus, a square, and in our case a heart-shaped primitive with a sextic equation (a polynomial, which has six roots). read more

In our first three installments in this series, we learned what Kubernetes is, why it's a good choice for your datacenter, and how it was descended from the secret Google Borg project. Now we're going to learn what makes up a Kubernetes cluster. A Kubernetes cluster is made of a master node and a set of worker nodes. In a production environment these run in a distributed setup on multiple nodes. For testing purposes, all the components can run on the same node (physical or virtual) by using minikube.

I have a podcast on which I chat with both Red Hat colleagues and a variety of industry experts on topics from cloud to DevOps to containers to IoT to open source. Over time, I've gotten the recording and editing process pretty streamlined. When it comes to the mechanics of actually putting the podcast online, however, there are a lot of fussy little steps that need to be followed precisely. read more

So far in this series, we’ve walked through security considerations for your SysAdmin workstation from choosing the right hardware and Linux distribution, to setting up a secure pre-boot environment and distro installation. Now it’s time to cover post-installation hardening.

Fedora regularly offers an updated stable kernel for its users. This is just one of many reasons Fedora is a way to get the newest technology now. On rare occasions, though, a new kernel can bring an issue with it. You... Continue Reading →

Shuttleworth returns as CEO. More than 80 Canonical workers are facing the axe as founder Mark Shuttleworth has takes back the role of chief executive officer.

Red Hat is steering its DevOps program into network management. Like most DevOps programs, Red Hat's Ansible doesn't require your IT staff to be coding wizards. It's meant to make server and cloud deployment and configuration easy.

In a few months, publicly trusted certificate authorities will have to start honoring a special Domain Name System (DNS) record that allows domain owners to specify who is allowed to issue SSL certificates for their domains.

In this week's Top 5, we highlight putting Linux on a Chromebook, building your own DNS name servers, creating a VoIP (voice over IP) solution on a Raspberry Pi, comparing Python and Ruby for web development, and the top five programming languages for DevOps.

This article will walk you through the installation of MySQL Workbench as well as the steps necessary on your MySQL servers to enable connection from the new tool. I’ll be demonstrating this on a Ubuntu 16.10 desktop connecting to a Ubuntu 16.04 server.

ApacheCon North America is only a few weeks away and will be happening May 16-18, 2017, in Miami. It’s particularly exciting this year because ApacheCon is going to be a little different. For one thing, there is a series of mini-conferences running in and around ApacheCon that you will not want to miss.