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News briefs for November 29, 2018.

Common mistakes people make when starting out with CI/CD to speed software development

Learn how to set up a firewall for Redis using ufw and create firewall rules for other applications too.

First fruits of the collaboration between the Linux Foundation and the open source project will be two "getting started" guides to be made available at next week's RISC-V Summit.

Artifact, Valve’s card game has now officially released and after spending more hours than I will ever admit playing it, here’s some of my own thoughts while played on Linux.

Swap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of RAM, inactive pages are moved from the RAM to the swap space. This tutorial covers the steps necessary to add a swap file on Ubuntu 18.04 systems.

Podcast: nostalgia, two factor security, app subscriptions...

This week Amazon announced their new A1 arm64 EC2 Instances powered by their arm64 based Graviton Processors and, with a minor delay, the shiny new Fedora 29 for aarch64 (arm64) is now available to run there too! Details on getting running on AWS is in this good article on using AWS tools on Fedora article […]

Arm’s open source EBBR (Embedded Base Boot Requirements) specification is heading for its v1.0 release in December. Within a year or two, the loosely defined EBBR standard should make it easier for Linux distros to support standardized bootup on major embedded hardware platforms.

News briefs for November 28, 2018.

GLava is an OpenGL audio spectrum visualizer for Linux (X11). Using it, you can make a real-time audio visualizer appear as if it's embedded in your desktop background.

Searx is a free and open source metasearch engine with the aim of protecting the privacy of its users. Searx can fetch search results from about 70 different engines, like Bing and Google.

Do you regularly use a single-page web application, but miss some of the benefits of a full-fledged desktop application? The GNOME Web browser, simply named Web (aka Epiphany)  has an awesome feature that allows you to ‘install’ a web application. By doing this, the web application is then presented in the applications menus, GNOME shell […]

In the final part of this series, I explore the method most people use to create, deploy and manage containers. The concept is typically referred to as container orchestration. If I were to focus on Docker, on its own, the technology is extremely simple to use, and running a few images simultaneously is also just as easy...

At Embedded Linux Conference Europe, Arm’s Grant Likely explains how an emerging, UEFI-based EBBR spec could standardize embedded Linux firmware bootup behavior using standard bootloaders like U-Boot. Arm’s open source EBBR (Embedded Base Boot Requirements) specification is heading for its v1.0 release in December. Within a year or two, the loosely defined EBBR standard should […]

Sphinx is a popular application for creating documentation, similar to JavaDoc or Jekyll. However, Sphinx's reStructured Text input allows for a higher degree of customization than those other tools. This tutorial will explain how to customize Sphinx to suit your workflow. You can follow along using sample code on GitHub. read more

In this article, we will install the latest version of Python3 on our Ubuntu system and then set up a virtual programming environment where you can write and execute your Python application programs.

In this article, we will perform following scripts to interact with Lemur using the terminal: Creation of Authority using CFSSL in the Lemur GUI. This CFSSL Authority will be used in our scripts to generate the certificate.

My first attempt to set up an "entertainment PC" was back in the late 1990s, using a plain old desktop computer with a Trident ProVidia 9685 PCI graphics card. I used what was known as a "TV-out" card, which had an extra output to connect to a standard television set. The onscreen result didn't look very nice and there was no audio output. And it was ugly: I had an S-Video cable running across my living room floor to my 19" Sony Trinitron CRT TV set.

This tutorial teaches everything you need to know about Linux file permissions. You'll also learn to change the file permissions and ownership.