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On Linux, I often use the GNU Emacs editor to write the source code for new programs. I learned GNU Emacs long ago when I was an undergraduate student, and I still have the "finger memory" for all the keyboard shortcuts. When I started work on FreeDOS in 1994, I wanted to include an Emacs-like text editor. You can find many editors similar to Emacs, such as MicroEmacs, but these all take some shortcuts to fit into the 16-bit address space on DOS. However, I was very pleased to find Freemacs, by Russell "Russ" Nelson.

Neos CMS is a free and open-source content management system that allows you to build your website easily. In this post, we will show you how to install Neos CMS with Apache on Ubuntu 20.04 server.

The Biden Administration's recent executive order on cybersecurity aims to improve security assurance and the use of best practices. Transparency and project health are two factors that help to support security across the entire software industry—especially now. read more

Man pages were my go-to resource when I started exploring Linux. Certainly, man is the most frequently used command when a beginner starts getting familiar with the world of the command line. But man pages, with their extensive lists of options and arguments, can be hard to decipher, which makes it difficult to understand whatever you wanted to know. If you want an easier solution with example-based output, I think tldr is the best option. read more

Welcome to the 2021 Opensource.com summer reading list. This year's list contains eight wonderful book recommendations from members of the Opensource.com community. From classics like Frank Herbert's Dune and a new translation of Beowulf to non-fiction books about the history of tech industry culture, this list has books for readers with different tastes and interests.

In the very early days of DOS, the standard editor was a no-frills line editor called Edlin. Tim Paterson wrote the original Edlin for the first version of DOS, then called 86-DOS and later branded PC-DOS and MS-DOS. Paterson has commented that he meant to replace Edlin eventually, but it wasn't until ten years later that MS-DOS 5 (1991) replaced Edlin with Edit, a full-screen editor. read more

Classical computing is based on bits. Zeros and ones. This isn't because there's some inherent advantage to a binary logic system over logic systems with more states—or even over analog computers. But on-off switches are easy to make and, with modern semiconductor technology, we can make them very small and very cheap. read more

Redmine is a free and open-source project management application written in Ruby. In this post, we will show you how to install Redmine on Ubuntu 20.04 server.

Big wave surf legend and surfboard maker, Gary Linden talks the ocean, the internet and where humanity goes from here. The post Gary Linden, legendary surfer & Firefox fan appeared first on The Mozilla Blog.

Wind River has released Wind River Linux LTS21, advancing to Linux LTS 5.10, Yocto Project 3.3, and Qt 5.15.2. New features include a Linux Assembly Tool for image creation and a pre-built binary distribution. We last heard from Wind River in Feb. 2020 when the company released an unnamed version of Wind River Linux that […]

In 5 reasons to run Kubernetes on your Raspberry Pi homelab, I explain why you might want to use Kubernetes at home. Those reasons are relatively arbitrary, and they mostly focus on outcomes. Aside from what Kubernetes can do, there are several other good reasons to look at Kubernetes as an important next step in your personal computing experience. 1. It's built on the foundation of Linux read more

Centrifugo is an open-source real-time messaging server with support for WebSocket and SockJS. In this guide, we will show you how to install Centrifugo on Ubuntu 20.04 server.

Recent supply chain breaches, plus President Biden's new Cybersecurity executive order, are bringing renewed attention to DevSecOps' value for the enterprise. DevSecOps brings culture changes, frameworks, and tools into open source software (OSS). To understand DevSecOps, you must understand its relationship with OSS. read more

Explore how to use Systemd Timers to schedule tasks on Fedora Linux.

Real talk: this web stuff can get confusing. And it’s really important that we all understand how it works, so we can be as informed and empowered as possible. Let’s start by breaking down the differences between the internet, browsers, search engines and websites. Lots of us get these four things confused with each other […]

In this guide, we will learn to install the Joomla CMS on Ubuntu 20.04. Joomla is a widely-used content management system (CMS) that is used for making dynamic websites. It is open-source and is available for free under GPL (general public license).

OpenEmbed’s $159-and-up “EdgeBox-RPI4” industrial controller builds on the Raspberry Pi CM4 with GbE, optional WiFi/BT, HDMI 2.0, 2x USB, isolated RS485 and DIO and M.2 and mini-PCIe for NVMe and 4G. OpenEmbed, which has introduced products such as the RK3399-based em3399 module and emPAC-RK3399-EVB eval board, has launched a compact, semi-rugged edge controller and IoT […]

TI’s 16nm Sitara AM64x offers up to 2x -A53, up to 4x Cortex-R5F, and a Cortex-M4F core for FuSa and ships with a Linux SDK and choice of $99 and $299 eval kits. Phytec, SolidRun, and TQ have also unveiled AM64x based modules. The Texas Instruments Sitara AM64x was announced on Embedded Computing in early […]

Application modernization developers must be able to understand database operations and transaction processes inside applications precisely. Tackle-DiVA (Data-intensive Validity Analyzer) is an open source data-centric Java application analysis tool in the Konveyor Tackle project that aims at refactoring applications to Kubernetes. This article gives an overview of Tackle-DiVA and presents example instructions and analysis results.

Installing an application on a computer system is pretty simple. You copy files from an archive (like a .zip file) onto the target computer in a place the operating system expects there to be applications. Because many of us are accustomed to having fancy installer "wizards" to help us get software on our computers, the process seems like it should be technically more complex than it is.