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Monitoring your virtualized server environments is the ideal way to ensure optimal utilization of hardware resources and the best possible performance of your IT infrastructure. In this tutorial, I will show you how to monitor your vSphere with the open-source monitoring tool Checkmk in just a few minutes.

The US Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a Linux kernel flaw to its Known Exploited Vulnerabilities Catalog and instructed federal agencies to address it within three weeks.

Well, these distros are all about continual reinvention, after all. Rolling Rhino, a project that turned Ubuntu into a rolling-release distribution, is restarting development under a new name: Rhino Linux.…

As a staff product manager for Mozilla’s security and privacy team, Tony Amaral-Cinotto thinks a lot about how you can protect your personal information, including, most recently, your phone number.  Firefox Relay has been protecting email addresses from spammers since 2020. Tony’s team just released a new feature applying the same idea to your phone […]

Building your own initial RAMdisk? That's insecure! Lennart Poettering's latest blog post proposes moving the Linux boot process into a "Brave New Trusted Boot World" of cryptographically signed Unified Kernel Images.…

A few years ago, I wrote a command-line math program for FreeDOS called VMATH. It was capable of performing only extremely simple mathematical operations on very small unsigned integers. With some recent interest in basic math in the FreeDOS community, I improved VMATH to provide basic math support on signed 64-bit integers.

The [ command, often called a "test," is a command from the GNU Core Utils package, and initiates a conditional statement in Bash. Its function is exactly the same as the test command. When you want to execute a command only when something is either true or false, use the [ or the test command. However, there's a significant difference between [ or test and [[, and there's a technical difference between those commands and your shell's versions of them...

Latest release brings better speed and more comprehensible error messages Python 3.11.0, the latest iteration of the exceedingly popular programming language, debuted on Monday, to the delight of software developers who care about such things.…

OKdo launched yesterday the Radxa ROCK 3 Compute Module (CM3) which is based on the Rockchip RK3566 System-on-Chip. The CM3 is currently offered with 2GB RAM/32GB eMMC, one GbE Ethernet PHY, dual displays, dual SATA ports and many other peripherals. The SoC found on the Rock 3 CM3 has the following features:  Rockchip RK3566 SoC: […]

Are you looking for a way to quickly transfer files from your Windows computer to your Linux computer and back again? The open source PSCP utility makes it easy to transfer files and folders, and of course it's open source.

Arcan sub-project reinvents command lines and GUIs at once Lash#Cat9 is a new type of typing-driven UI, which moves beyond terminal emulators. Cat9's power comes from its close interaction with its display server, Arcan. This picks up some of the ideas from X11 and Wayland then goes much further.…

Distec recently launched a fanless BOX PC compatible with Tiger Lake-U processors from Intel. The Box PC Pro NPA-2009 is equipped with a docking connector via V-by-one or DP to control external TFT displays. Other key features include dual GbE ports, one M.2 2280 slot, one M.2 2230 slot, one M.2 2242 and up to […]

In the first part of this series, I illustrated what an Open Organization chart looks like based on the book Team of Teams, by Stanley McChrystal. In this second and final part, I explore concerns about the information flow using this chart and give some examples of how it might work...

By the time a kid turns 13, more than 72 million pieces of personal data have been collected about them on the internet, according to a 2018 report. These can include name, date of birth, address, family members, where they hang out, the people they interact with, what they do in the classroom, and which […]

The git log command offers many opportunities to learn more about the commits made by contributors. One way you might consume such information is by date. To view commits in a Git repository created on a specific date or range of dates, use the git log command with the options --since or --until, or both.

If you type "What is a PWA" in your favorite search engine, you'll probably get a stock response similar to "PWAs are designed to be fast, reliable, and engaging, with the ability to work offline and be installed on a device's home screen." While this is partly true, it's just the tip of the iceberg for what a PWA has the potential to be and what it's evolving into, even as I write this article.

Of course, I use open source editors to write my pieces. Here are the four open source editors that I have used.

When you launch an application on an operating system, there are certain code libraries and utility applications that your OS needs to use for that app to run. Your OS knows how to find these libraries and utilities because it has a system path, a map to common shared data that lots of apps need. Every OS has this, but users aren’t usually aware of it because they don’t usually need to care about it. However, when you start coding or using special network utilities or commands, you might care about your own PATH variable.

Plus better support for some newer Intel wireless and graphics chipsets. OpenBSD 7.2 is here, spanning an impressive 14 different computer platforms, including FOSS fans who have the newest Apple Arm-based Mac models.…

Mastodon is free and open-source software for running self-hosted social networking services. It offers microblogging features that allow you to follow other users and post messages and images with Mastodon. In this tutorial, we will show you how to install Mastodon on Ubuntu 22.04.