I've written about a number of chemistry packages in the past and all of the computational chemistry that you can do in a Linux environment. But, what is fundamental to chemistry? Why, the elements, of course. So in this article, I focus on how you can learn more about the elements that make up everything around you with Kalzium. KDE's Kalzium is kind of like a periodic table on steroids. Not only does it have information on each of the elements, it also has extra functionality to do other types of calculations.

One of the jobs of the Linux kernel—and all operating system kernels—is to manage the resources available to the system. When those resources get used up, what should it do? If the resource is RAM, there's not much choice. It's not feasible to take over the behavior of any piece of user software, understand what that software does, and make it more memory-efficient. Instead, the kernel has very little choice but to try to identify the software that is most responsible for using up the system's RAM and kill that process.

In this webinar, Twistlock's James Jones and Linux Journal's Katherine Druckman discuss hardening your DevOps environments and processes. Topics covered: The keys to DevSecOps success Tangible benefits of DevSecOps Steps and tools involved with building, shipping, and running containers DevSecOps creates a feedback loop Seven steps to containers And more Register to watch this webinar on-demand: 

In the modern era, messaging applications are a constant target for attackers, exposing vulnerabilities, disclosing sensitive information of nation states and insider-employee inappropriate behaviors or practices. There is a constant need to prioritize one's cybersecurity and upgrade one's infrastructure to the latest and greatest of defensive technologies. However, the messaging tools that these same organizations tend to rely on often are the last to be secured, if at all.

OpenNebula recently released its latest version, 5.8 "Edge", which now offers pivotal capabilities to allow users to extend their cloud infrastructure to the Edge easily and effectively. Why OpenNebula? For anyone looking for an open-source, enterprise solution to orchestrate data-center virtualization and cloud management with ease and flexibility, OpenNebula is a fine candidate that includes:

If you use GPG keys, learn about the benefits to storing them on a smart card.

The Linux kernel stack is a tempting target for attack. This is because the kernel needs to keep track of where it is. If a function gets called, which then calls another, which then calls another, the kernel needs to remember the order they were all called, so that each function can return to the function that called it. To do that, the kernel keeps a "stack" of values representing the history of its current context.

Digital assets are becoming as important as physical assets, so how do you manage them after you die?

It's time to embrace 5G, starting with the Edge in our homes and hands.

Periodically, the kernel developers debate something everyone generally takes for granted, such as the length of a line of text. Personally, I like lines of text to reach both sides of my screen—it's just a question of not wasting space. Alastair D'Silva recently agreed with me. He felt that monitor sizes and screen resolution had gotten so big in recent years, that the kernel should start allowing more data onto a single line of text. It was simple pragmatism—more visible text means more opportunity to spot the bug in a data dump.