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Transport Layer Security (TLS) 1.3 is the latest version of the Transport Layer Security (TLS) protocol, published as an IETF standard in RFC 8446 in August 2018. TLS 1.3 protocol provides privacy and performance enhancements compared to the previous versions of TLS and non-secure HTTP. This tutorial shows how to enable TLS 1.3 in a Nginx web server.

Welcome back to another installment in our 24-day-long Linux command-line toys advent calendar. If this is your first visit to the series, you might be asking yourself what a command-line toy even is. We’re figuring that out as we go, but generally, it could be a game, or any simple diversion that helps you have fun at the terminal. Some of you will have seen various selections from our calendar before, but we hope there’s at least one new thing for everyone. read more

Fedora isn’t just a hugely popular desktop Linux OS. Like most Linux systems it features a powerful command line interface. That lets interested users tinker under the hood to an astounding level. Over the course of the year the Magazine has shown lots of fascinating ways to get into the command line. As part of […]

Installing the latest Linux kernel used to mean a reboot, until the development of ‘rebootless kernel updating’, a method that patches servers without restarting them. With the technique now just over 10 years old, this article takes a brief look at its origins and current state.

You wrote a Python library. I'm sure it's amazing! Wouldn't it be neat if it was easy for people to use it? Here is a checklist of things to think about and concrete steps to take when open sourcing your Python library. 1. Source Put the code up on GitHub, where most open source projects happen and where it is easiest for people to submit pull requests. read more

Hello again for another installment in our 24-day-long Linux command-line toys advent calendar. If this is your first visit to the series, you might be asking yourself what a command-line toy even is. We’re figuring that out as we go, but generally, it could be a game, or any simple diversion that helps you have fun at the terminal. Some of you will have seen various selections from our calendar before, but we hope there’s at least one new thing for everyone. Today's toy if figlet, a utility for printing text in banner form across your Linux terminal.

In this article, I describe how Docker containers flow through the DevOps pipeline. I also cover some advanced DevOps concepts (borrowed from object-oriented programming) on how to use dependency injection and encapsulation to improve the DevOps process. And finally, I show how containerization can be useful for the development and testing process itself, rather than just as a place to serve up an application after it's written.

News briefs for December 18, 2018.

The launch of the game-changing System76 Thelio only solidifies this open source dream. CEO Carl Richell oozes the open source ethos, and that ideology comes through, to perfection, in their latest offering, the Thelio desktop, a machine as beautiful in design as it is in execution.

Wave Computing will follow in RISC-V’s path by offering its MIPS ISA as “open source” code without royalties or proprietary licensing. The MIPS Open initiative will focus on the development of SoCs for emerging IoT edge applications. The RISC-V Foundation, which promotes the development of processors built on a standardized, open source instruction set architecture […]

The “Adafruit Crickit HAT” is a Python-oriented RPi HAT add-on for robotics that includes servos, motor control, drive outputs, touch inputs, NeoPixel driver, 3W amp, and more. Adafruit has released a $35 robotics HAT add-on for any 40-pin Raspberry Pi board. The Adafruit Crickit (Creative Robotics & Interactive Construction Kit) HAT is designed for controlling […]

The host of the Command Line Heroes podcast, Saron Yitbarek, kicks off each episode with a sound-studded description of an event that sets the stage for the topic of the episode. Sometimes it's a speech from Al Gore, and sometimes its the Mars Curiosity Rover landing. You should go have a listen. In the final episode recap, Yitbarek walks us through "how open source fuels some of humankind's grandest projects." read more

Programming is about languages, of course, but also much more. Along with good languages, programmers need toolsets to support coding: software development kits (SDKs), command-line utilities for source-code inspection and even editing, package managers, repositories targeted at developers, and so on. The ten articles listed below cover programming in this broad sense. read more

Riak is a distributed NoSQL database that offers high-availability, fault tolerance, operational simplicity, and scalability. In this tutorial, I will show you how to install and configure the NoSQL database Riak KV on CentOS 7 server.

Back in 2016, I took down the shingle for my technology coaching business. Permanently. Or so I thought. Over the last 10 months, a handful of friends and acquaintances have pulled me back into that realm. How? With their desire to dump That Other Operating System™ and move to Linux. read more

The Open Source community has done quite an excellent job with producing professional-grade photography applications. Here is the list of what I regularly use.

News briefs for December 17, 2018.

Axiomtek’s fanless, IP67-protected “eBOX800-900-FL” computer runs Ubuntu on a Jetson TX2 module and offers -30 to 60°C support, 3Grms vibration resistance, M.2 NVMe expansion, and 2x GbE ports, including one with PoE. Axiomtek turned to the Arm-based Jetson TX2 module for its eBOX560-900-FL industrial edge AI computer.......

Reality 2.0 - Episode 10: Hydrants and Sirens. Katherine Druckman and Doc Searls talk to David Egts, Chief Technologist North America for the Public Sector at Red Hat.

Rainloop is a free, open source, simple and fast web-based email client that can be used to access emails from any mail servers like Postfix, Gmail, Yahoo and many more. In this tutorial, we will learn how to install Rainloop webmail client on Ubuntu 18.04 server.