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Nagios is an open source software for system and network monitoring. Nagios can monitor the activity of a host and its services, and provides a warning/alert if something bad happens on the server. Nagios can run on Linux operating systems. At this time I will use Ubuntu 16.04 for the installation.

To business leaders, "open source" often sounds too altruistic—and altruism is in short supply on the average balance sheet. But using and contributing to open source makes hard-nosed business sense, particularly as a way of increasing innovation. read more

Previously in this series (see links below), I’ve described the dig utility and its many uses in performing DNS lookups, along with several examples to help solve specific problems. In this final installment, I’ll look briefly at some security options and wrap up with additional examples.

For most people, computers don't stay the same. Software is added, removed, and updated. Configurations are changed. Think about the changes you've made to your computer since the first time you booted it up. Now imagine making those changes to 10, 100, or 1,000 more computers. Configuration management tools are what make implemententing and enforcing these changes possible. read more

Few things are more tantalizing than a good mystery, and Google is making waves for an open source-centric mystery that may end up having profound implications. It all started in August when an extensive and unusual code repository for a new operating system called Fuchsia was discovered online, and now the growing source code set is on GitHub.

Until recently, doing time series analysis at scale was expensive and almost exclusively the domain of large enterprises. What made time series a hard and expensive problem to tackle? Until the advent of the NoSQL database, scaling up to meet increasing velocity and volumes of data generally meant scaling hardware vertically by adding CPUs, memory, or additional hard drives. When combined with database licensing models that charged per processor core, the cost of scaling was simply out of reach for most. read more

What is Node.js? Node.js® is a JavaScript runtime built on Chrome’s V8 JavaScript engine. It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Its package ecosystem, npm, is the largest ecosystem of open source libraries in the world.... Continue Reading →

As LJ readers well know, Linux drives many of the technologies we use every day, from smart TVs to Web servers. Linux is everywhere—except most homes and classrooms.

CompuLab’s Linux Mint flavored MintBox Mini Pro mini-PC updates the Mini with an AMD A10 Micro-6700T, plus BT 4.0, mini-PCIe, and twice the RAM and storage. The CompuLab built, $395 MintBox Mini Pro, which ships with the Linux Mint 18 Cinnamon distribution, updates the $295 MintBox Mini with a lot more performance and features in […]

Canonical has looked into its cloud and container crystal ball and they see Kubernetes.

Watch open source leaders, entrepreneurs, developers, and IT operations experts speak live next week, Oct. 4-6, 2016, at LinuxCon and ContainerCon Europe in Berlin. The Linux Foundation will provide live streaming video of all the event’s keynotes for those who can't attend.

The notion of using robust, random passwords has become all but mainstream-by now anyone with an inkling of security sense knows that "password1" and "1234567" aren't doing them any favors. But even as password security improves, there's something even more problematic that underlies them: security questions.

Security is an ongoing issue for all operating systems, including Linux. While Linux has generally had a good reputation compared to Windows when it comes to security, no operating system is perfect. A writer at Ars Technica recently examined the issue of security and the Linux kernel.

The Linux kernel today faces an unprecedented safety crisis. Much like when Ralph Nader famously told the American public that their cars were "unsafe at any speed" back in 1965, numerous security developers told the 2016 Linux Security Summit in Toronto that the operating system needs a total rethink to keep it fit for purpose.

VIA’s “Artigo A830” IoT gateway runs Android on an i.MX6 DualLite SoC and offers HDMI, GbE, microSD, numerous serial and USB ports, plus -20 to 60° operation. As the name suggests, the VIA Technologies Artigo A830 Streetwise IoT Platform is designed for outdoor Internet of Things gateway applications.

There are big transformations going on in the world today that are driving rapid changes to the business of networks, said Santiago Rodriguez, VP of Engineering and head of the product development unit SDN & Policy Control at Ericsson, in his keynote Tuesday at OpenDaylight Summit.

I was a Bitcoin fan before it was popular. That means I had thousands of Bitcoins. It also means I sold my thousands of Bitcoins for less than $1 each. Still, the technology fascinates me, and although cryptocurrencies have risen and fallen, I'm still a fan.

Earlier this year we launched our first set of experiments for Test Pilot, a program designed to give you access to experimental Firefox features that are in the early stages of development. We’ve been delighted to see so many of … Continue reading

FriendlyARM’s 40 x 40mm “NanoPi Neo Air” hacker SBC runs Ubuntu Core on an Allwinner H3 with 8GB eMMC, WiFi, BT, a DVP cam connector, and a microSD slot. The NanoPi Neo Air is a respin of the astonishingly affordable, $8 NanoPi Neo that shipped in July, and has the same 40 x 40mm dimensions […]

The web browser has become the most important software on most users’ computers. You probably use your web browser for entertainment, work, learning, and other purposes. Therefore you can make your life easier by using it efficiently. Here are some tips for keyboard shortcuts that will save you time and... Continue Reading →