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The How to Build a Netboot Server, Part 1 article provided a minimal iPXE boot script for your netboot image. Many users probably have a local operating system that they want to use in addition to the netboot image. But switching bootloaders using the typical workstation’s BIOS can be cumbersome. This part of the series shows […]

You've found your way to 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. 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

Hypertext Transfer Protocol Version 2 (HTTP/2) is the latest version of the HTTP protocol. This tutorial shows you how to enable HTTP/2 in your nginx web server.

About three years ago, I shared an article on how to create a musical light show with the Raspberry Pi. I followed up a few months later with SSH into your Christmas tree with Raspberry Pi. A few things have changed since then, and this article is an update to the two originals. read more

I have been writing for Opensource.com for about four years and reading it since at least 2011. I am always amazed by the number and quality of the articles on the site. I have learned a great deal about many aspects of open source in general—and about Linux in particular. The articles we publish about Linux are always very popular and generate a lot of interest. Of the many Linux-related articles published on Opensource.com in 2018, these 13 garnered the most views.

News briefs for December 20, 2018.

The new Linux Mint is another step forward in what's already an outstanding Linux desktop distribution.

Sometimes, when you're executing a program, you might want to know its system resource usage. Like how much time the process spent in kernel mode and user mode, and other info. Thankfully, there exists a tool - dubbed time - that's specifically built for this purpose.

Continuous integration, continuous delivery, and continuous deployment (CI/CD) have all existed in the developer community for many years. Some organizations have involved their operations counterparts, but many haven't. For most organizations, it's imperative for their operations teams to become just as familiar with CI/CD tools and practices as their development compatriots are. read more

by Mitch Frazier   In my first post on removing duplicate PATH entries I used an AWK one-liner. In the second post I used a Perl one-liner, or more accurately, I tried to dissect a Perl one-liner provided by reader Shaun. Shaun had asked that if I was willing to use AWK (not Bash), why not use Perl? It occurred to me that one might also ask: why not just use Bash? So, one more time into the void.

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Prometheus is an open source monitoring and alerting system that directly scrapes metrics from agents running on the target hosts and stores the collected samples centrally on its server. Metrics can also be pushed using plugins like collectd_exporter—although this is not Promethius' default behavior, it may be useful in some environments where hosts are behind a firewall or prohibited from opening ports by security policy. read more

The Internet is a huge playground, but also has a few dark corners. In order to ensure that users still feel secure and protected while browsing, we’ve implemented features that...

Greetings from another day 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. We hope that even if you've seen some of these before, there will be something new for everybody in our series. Some of you may be too young to remember, but before there was Alexa, Siri, or the Google Assistant, computers still had voices. read more

Looking for good DevOps books to read? Don't know where to start? Follow this reading wishlist to find the best books on DevOps for practical thinkers. You'll learn from authors who have addressed real-life problems and contributed to the innovation process.

A recent Treasury audit report revealed an IRS IT move from Solaris to Linux was delayed due to gross incompetence.

Qualcomm and Intrinsyc opened pre-orders on a 75 x 36mm “Qualcomm Flight Pro” reference platform for drones and robotics that runs Linux on a Snapdragon 820 with WiFi, BT, GNSS, IMUs, 4x cameras, and optional motor board. The Qualcomm Flight Pro reference platform for consumer drones and robotics applications is a follow-on................

While there are a ton of tutorials, blog posts, documentation, and other content available to learn about Python and containers, there's something special about learning a new skill from a conference talk. Speakers usually give a more personal perspective and use interesting or quirky metaphors to make their points memorable. read more

One of the saddest stories of vendor lock-in is the story of messaging. What makes this story sad is that the tech industry has continued to repeat the same mistakes and build the same proprietary systems over the last two decades, and we as end users continue to use them. In this article, I look at some of the history of those mistakes, the lessons we should have learned and didn't, and the modern messaging world we find ourselves in now.

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