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Kontron’s “SMARC-sAL28” module runs Linux on a dual-core, Cortex-A72 LS1028 SoC with -40 to 85°C support and up to 5x GbE ports with Time Sensitive Networking. Kontron invented the ULP-COM standard that formed the basis of the SMARC form factor, and it has delivered numerous SMARC modules over the years, including Arm products such as […]

The Zimbra Collaboration Server is a mail server, collaborative web application and a web-based mail server admin console in a single application. It provides LDAP, antivirus, antispam, collaboration features and an ajax webmail client. In this tutorial, we will see how to upgrade an installation of Zimbra 8.7.11 to Zimbra 8.8.10 (latest version available).

On Opensource.com, we have a lot of reasons to be thankful. Over the past 12 months, we've had the pleasure of working with writers from a range of open source communities, organizations, and projects. We've had ongoing relationships and friendships with many of them, plus we've enjoyed welcoming dozens of new contributors to the site and new moderators to our community moderator program.

The service command lets you run a System V init script. In this tutorial, we will briefly discuss this tool using some easy to understand examples.

As the global technology evangelist director of Red Hat’s portfolio product marketing group, I have a secondary focus on portfolio architectures. I research customer successes in solution implementation using our open source technologies, then produce generic higher-level architectural content so that others may benefit from these real-life experiences. read more

Fun with retro-coding a Roman numeral converter—I head back to my college years and solve me homework anew!

One great thing about programming languages is that there is such diversity that you can choose the best one to solve any given problem. But sometimes the worst thing can be when projects take advantage of this and build applications or systems of applications that require domain knowledge of many different languages. When this happens, it can be difficult for everyone, or even anyone, to fully understand the scope of the project. read more

One of Intel’s fixes for the Spectre variant 2 chip flaw (CVE- 2017-5715) appears to have taken a big bite out of the performance of the latest Linux kernel. The mitigation in question is the Single Thread Indirect Branch Predictors (STIBP), one of three that Intel proposed not long after details of the Meltdown and Spectre flaws were made public in January.

C# is a general purpose, type safe programming language implemented with the Object Oriented Paradigm in mind, The following tutorial is aimed at users that already know the basics of programming and are looking for a fast guide to get started with C# and .NET Core on Linux. The whole tutorial is divided into different posts, […]

With all the different programming languages available today, many organizations have become digital polyglots. Open source opens up a world of languages and technology stacks developers can use to accomplish their tasks, including developing and supporting legacy and modern software applications.

Vulnerability mapping is an activity carried out to identify security flaws which can result in the compromise of a system. Sometimes researchers will use the term “vulnerability assessment” instead of “vulnerability mapping.” They are, however, the same thing.

Richard Stallman, the fervently committed founder of the free software movement, is discussing the term “libertarian,” when he stops talking abruptly and says, “Hello?”

The improved STIBP heuristics have gone through several rounds of public review on the kernel mailing list in recent weeks. The patches are now queued in tip/tip.git's new WIP.x86/pti Git branch.

Two denial-of-service (DoS) vulnerabilities found in the Linux Kernel by contributor Wanpeng Li could allow local attackers to exploit null pointer deference bugs to trigger DoS conditions.

Join us this weekend as we bring the DIY movement back. Not only is it a chance to start working on those ideas you've been putting off for months, but it's also a great way to learn while playing.

In this edition of our open source news roundup, we take a look at the Mozilla's "Privacy Not Included" gift guide, Steven J. Vaughan-Nichols's thoughts about Linux on the desktop, the release of the Raspberry Pi 3 Model A+, and more.

At some point in your career as a Linux administrator, you’re going to use Secure Shell (SSH) to remote into a Linux server or desktop. Chances are, you already have. In some instances, you’ll be SSH’ing into multiple Linux servers at once. In fact, Secure Shell might well be one of the most-used tools in your Linux toolbox...

We rounded up 12 great gifts (all priced under $59) to make shopping for your Linux friends and loved ones a little easier this season. You may even want to hold on to some of these for yourself...

Set the wayback machine to 1993. I was working at a small company as a programmer and product deployment specialist. The product was COBOL-based and the OS was SCO Xenix. Both were based on open standards, but not open source. I was hired because I knew the medical software business and I had experience in several flavors of what was then called Micro-Unix. I didn't know a thing about COBOL, but that was the job opening. (PS, if you get any calls from the past: COBOL is not hard to learn.) read more

Some computer networks need to maintain identical software installations and configurations on several physical machines. One such environment would be a school computer lab. A netboot server can be set up to serve an entire operating system over a network so that the client computers can be configured from one central location. This tutorial will show one […]