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To address security issues posed by clear http communication in our previous crowdsec multi-server installation, we propose solutions to achieve communication between Crowdsec agents over encrypted channels. On top of that, the third solution allows server-2 or server-3 to trust server-1 identity, and avoid man-in -the -middle attacks.

A container image contains a packaged application, along with its dependencies, and information on what processes it runs when launched.

Learning is based on the open exchange of ideas and experiences. By sharing, testing, and practicing what we've learned with others, we're able to develop in our lives and careers. It follows that openness is the ideal state for any successful learning organization. 

I have a printer in my office, but sometimes I work on my laptop in another room of the house. This isn't a problem for me for two reasons. First of all, I rarely print anything on paper and have gone months without using the printer. Secondly, though, I've set the printer to be shared over my home network, so I can send files to print from anywhere in the house. I didn't need any special equipment for this setup. It's accomplished with just my usual Linux computer and the Common Unix Printing System (CUPS).

The SCO vs. IBM lawsuit that was once seen as an existential threat to Linux became a bad legal joke. Now the suit may finally be put to rest. Well, some of it anyway.

In my last article, I gave a brief introduction to using the ncurses library to write text-mode interactive applications in C. With ncurses, we can control where and how text gets displayed on the terminal. read more

Yarn is a fast, secure, and reliable NODE package manager that enables you to automate the installation, configuring, updating, and removing of npm packages. In this tutorial, I will explain the installation procedure of Yarn on Ubuntu 20.04 distribution. Moreover, we will also discuss the yarn basics and some useful commands.

DNF divides updates in three types: "security", "bugfix" and "enhancement". You can filter which types you want to operate on.

Ancient 'Who owns Unix?' case puts a $14.25M price tag on making some claims go away One strand of the ancient and convoluted SCO versus IBM legal mess that sought to determine who owns UNIX – and perhaps has a claim over Linux – may be about to end.…

Most Linux utilities just scroll text from the bottom of the screen. But what if you wanted to position text on the screen, such as for a game or a data display? That's where ncurses comes in.

Every so often, I need to do some calculations related to dates. A few days ago, a colleague asked me to set up a new project definition in our (open source, of course!) project management system. This project is to start on the 1st of August and finish on the 31st of December. The service to be provided is budgeted at 10 hours per week. So, yeah, I had to figure out how many weeks between 2021-08-01 and 2021-12-31 inclusive. This is the perfect sort of problem to solve with a tiny Groovy script. read more

At the beginning of COVID lockdown and multiple people working from home it was obvious there was a need to let others know when I’m in a meeting or on a live webcam. So naturally it took me one year to finally do something about it. Now I’m here to share what I learned along […]

Brackets code editor is an open-source program that assists web developers and designers in developing websites. This tutorial shows you how to install Brackets Editor on Ubuntu 20.04.

It’s possible to deep dive into the virtual reality gaming world on your Linux system. Want to explore VR games on Linux? This article takes you through the top 3 VR games available on Linux. Ready to get amazed? Let’s start.

Sounds sus to us – most talked about maybe. Python is the "de facto platform for new technologies," according to research by the IEEE in its Spectrum publication.…

A year by year summary of the most significant events in Linux's history to date.

Greg Kroah-Hartman talks to El Reg about world domination, what was, and what may be for the kernel Interview On August 25, 1991, Linus Torvalds, then a student at the University of Helsinki in Finland, sent a message to the comp.os.minix newsgroup soliciting feature suggestions for a free Unix-like operating system he was developing as a hobby.…

Modernizing and transforming legacy applications is a challenging activity that involves several tasks. One of the key tasks is validating that the modernized application preserves the functionality of the legacy application. Unfortunately, this can be tedious and hard to perform. Legacy applications often do not have automated test cases, or, if available, test coverage might be inadequate, both in general and specifically for covering modernization-related changes. A poorly maintained test suite might also contain many obsolete tests (accumulated over time as the application evolved). read more

Auto-Updating containers can be very useful in some cases. Podman provides mechanisms to take care of container updates automatically. This article demonstrates how to use Podman Auto-Updates for your setups. Podman Podman is a daemonless Docker replacement that can handle rootfull and rootless containers. It is fully aware of SELinux and Firewalld. Furthermore, it comes […]

Open-source rival shows it can compete with Microsoft's GitHub. GitLab has updated its code repository and DevOps platform to version 14.2, including a private beta of a macOS "build cloud" for compiling applications for Apple's operating system.…