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Because scrum and kanban both fall under the agile methodology umbrella, many people confuse them or think they're the same thing. There are differences, however. For one, scrum is more specific to software development teams, while kanban is used by many kinds of teams and focuses on providing a visual representation of an agile team's workflow. Some argue that kanban is about getting things done, and scrum is about talking about getting things done. read more

Email remains a fact of life. Despite all its warts, it's still the best way to send information to most people, especially in automated ways that allow messages to queue for recipients. read more

Pico is an open-source simple and fast flat-file CMS written in PHP. In this tutorial, we will install Pico CMS with Nginx on Debian 10 (buster) system.

Some gripes at this stage, but the potential is there. Hands On Container wunderkind Docker has released a preview of Docker Desktop for Windows Subsystem for Linux 2.…

Markdown is a widely adopted plain-text formatting syntax used to specify HTML rendering. It is also an essential skill to learn if you want to contribute to open source software.  Like many concepts in open source communities, there are multiple, domain-specific distributions of Markdown. CommonMark provides an unambiguous rendering specification for defined Markdown incantations while many communities offer extensions to the official specification. read more

Having an offsite backup in your RV is great, and after a year of use, I've discovered some ways to make it even better.

Jonathan Corbet wrote a document for inclusion in the kernel tree, describing best practices for merging and rebasing git-based kernel repositories. As he put it, it represented workflows that were actually in current use, and it was a living document that hopefully would be added to and corrected over time.

How to get started using Python's asyncio.

A look into what causes kernel panics and some utilities to help gain more information.

Containerizing the GUI separates your work and play. Virtualization has always been a rich man's game, and more frugal enthusiasts—unable to afford fancy server-class components—often struggle to keep up. Linux provides free high-quality hypervisors, but when you start to throw real workloads at the host, its resources become saturated quickly. No amount of spare RAM shoved into an old Dell desktop is going to remedy this situation. If a properly decked-out host is out of your reach, you might want to consider containers instead.

This article introduces a tool you can use to work on three-dimensional DNA origami. The package is called cadnano, and it's currently being developed at the Wyss Institute. With this package, you'll be able to construct and manipulate the three-dimensional representations of DNA structures, as well as generate publication-quality graphics of your work.

What is DevOps? How does it relate to other ideas and methodologies within software development? Linux Journal Deputy Editor and longtime software developer, Bryan Lunduke isn't entirely sure, so he asks some experts to help him better understand the DevOps phenomenon. The word DevOps confuses me.

The internet has a sustainability problem. Many of its critical services depend on the dedication of unpaid volunteers, because they can't be monetized and thus don't have any revenue stream for the maintainers to live on. I'm talking about services like DNS, time synchronization, crypto libraries—software without which the net and the browser you're using couldn't function.

IMPORTANT NOTICE FROM LINUX JOURNAL, LLC: On August 7, 2019, Linux Journal shut its doors for good. All staff were laid off and the company is left with no operating funds to continue in any capacity. The website will continue to stay up for the next few weeks, hopefully longer for archival purposes if we can make it happen.

David Howells put in quite a bit of work on a script, ./scripts/syscall-manage.pl, to simplify the entire process of changing the system call tables. With this script, it was a simple matter to add, remove, rename or renumber any system call you liked. The script also would resolve git conflicts, in the event that two repositories renumbered the system calls in conflicting ways.

Do you recognize the following scenario? I do, because a manager once stifled my passion and innovation to the point I was anxious to make decisions, take risks, and focus on what's important: "uncovering better ways of developing software by doing it and helping others do it" (Agile Manifesto, 2001). Developer: "The UX hypothesis failed. Users did not respond well to the new navigation experience, resulting in 80% of users switching back to the classic navigation." read more

bpftrace is a new eBPF-based tracing tool that was first included in Fedora 28. This article covers some basics about bpftrace, and how it works.

How to create your own search engine combined with a crawler that will index all sorts of documents.

Investigative journalist Tim Verheyden, who broke the story on how Google employees listen to people’s audio recordings, explains in an interview how he got hold of the story, why he is now using the encrypted contact form Secure Connect by Tutanota and why the growing number of "ghost workers" in and around Silicon Valley is becoming a big issue in Tech.

If you've written any amount of bash code, you've likely come across the trap command. Trap allows you to catch signals and execute code when they occur. Signals are asynchronous notifications that are sent to your script when certain events occur. Most of these notifications are for events that you hope never happen, such as an invalid memory access or a bad system call. However, there are one or two events that you might reasonably want to deal with...