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We are going to be focus on system logs, as that is where the heart of Linux troubleshooting lies. And the key issue here is, how do you view those log files?

VersaLogic’s Linux-friendly, EBX style “Viper” SBC offers a Bay Trail Atom E3800, up to 16GB DDR3L, -40 to 85°C support, and MIL-STD-202G ruggedization. A few weeks after WinSystems announced an EBC-C413 SBC for legacy shops wanting to upgrade their legacy EBX systems to the Intel Bay Trail Atom E3800, VersaLogic unveiled its own EBX form-factor […]

in this final part, we’ll put it all together with music.

Conexant and Amazon have launched an Alexa Voice Service development kit for the Raspberry Pi 3. The kit includes a Conexant AudioSmart CX20921 voice board. Since Amazon opened up access to its Alexa Voice Service (AVS) agent inside the Amazon Echo smart speaker/IoT hub, including an open source port to the Raspberry Pi, several projects […]

Previously, we covered the basics of what you need for this project and showed how to set up your Raspberry Pi. Here, we’ll focus on the components and connections for the light show, and in part 3, we’ll put it all together with the music.

What do you do when you want to open a PDF file in Ubuntu? Simple, double click on the PDF file icon, or right-click and select the "Open with Document Viewer" option. But what if you're asked to do the same task through the command line? Do you know the command line utility that will do the job for you? However, you'll be glad to know that there's way through which you can launch Evince for a PDF file, even if you don't know the fact that a command line utility of that name exists, and that's what we'll be discussing in this article.

In this week's Top 5, we highlight why the operating system matters, getting started with Raspberry Pi, seven projects you might have missed in 2016, ten tools for sysadmins, and an interactive calculator for the Linux command-line. Top 5 articles of the week 5. ?Why the operating system matters even more in 2017 read more

I built a music-light show for Halloween, but I improved it and added more features as I worked on the Christmas project. In this series, I'll provide comprehensive instructions to build a fully automated Christmas music/light show that turns on automatically at a given time or that you can plug and play.

Open source software enables Google to build things quickly and efficiently without reinventing the wheel, allowing us to focus on solving new problems. We stand on the shoulders of giants, and we know it. This is why we support open source and make it easy for Googlers to release the projects they're working on internally as open source. read more

Congatec’s “Conga-MA5” is a Linux-ready COM Express Compact Type 10 Mini module with Apollo Lake SoCs, up to 128GB eMMC 5.1, and -40 to 85°C support. Congatec was one of the first embedded vendors to announce computer-on-modules based on Intel’s Atom E3900 and other Apollo Lake Pentium and Celeron SoCs. The offerings included a Qseven […]

In my first article on getting started with the Groovy programming language, I left off with an example of reading a CSV file in Groovy. In this article, I'm going to move to a more idiomatic Groovy style (make it groovier, as some would say), cover the use of Groovy maps as lookup tables, and finish up by using maps to calculate some results. First things first—here is the final example from the last article, in more idiomatic Groovy: read more

The New C C99 is the C standard ratified by the ANSI and ISO standardizaion groups. It presents a significant amount of changes to the C language. These changes are the result of sibling competition between C and C++. The initial... Continue Reading →

This guest column from analyst firm VisionMobile Ltd. examines the impact of open source on the IoT, and suggests how companies can maximize its benefits. ? ? A Guide to Open Source in IoT by Stijn Schuermans, Senior IoT Analyst, VisionMobile Ltd. ? Introduction With the dawn of the Internet of Things, software is making […]

In part 1, we installed and tested the Postfix SMTP server. Postfix, or any SMTP server, isn't a complete mail server because all it does is move messages between SMTP servers. We need Dovecot to move messages off your Postfix server and into your users' email inboxes.

Everything has a season, and as organizations age—communities, charities, companies, churches and more—they face similar diseases of time. These are emergent patterns of failure that arise not from mistakes but from the consequences of earlier success. In open source, we are seeing the same patterns emerge; this should not be a surprise. read more

At the recent ELC Europe event in Berlin, Bird gave a “Status of Embedded Linux” keynote in which he discussed the good news in areas like GPU support and virtually mapped kernel stacks, as well as the slow progress in boot time, system size, and other areas that might help Linux compete with RTOSes in IoT leaf nodes.

With the recent release of Fedora 25, Fedora 23 will officially enter End Of Life (EOL) status on December 20th, 2016. After December 20th, all packages in the Fedora 23 repositories will no longer receive security, bugfix, or enhancement updates,... Continue Reading →

This tutorial shows how to prepare a Debian 8 (Jessie) server (with nginx, BIND, Dovecot) for the installation of ISPConfig, and how to install ISPConfig 3.1. ISPConfig 3 is a web hosting control panel that allows you to configure the following services through a web browser: Apache or nginx web server, Postfix mail server, Courier or Dovecot IMAP/POP3 server, MySQL, BIND or MyDNS nameserver, PureFTPd, SpamAssassin, ClamAV, and many more. This setup covers nginx (instead of Apache), BIND as DNS server, and Dovecot (instead of Courier).

Animation is a robust field with a large number of specialties and an even larger number of tools for creating a particular look or style. In the past two months, I've covered Krita Animation for hand-drawn digital cel animation and StopGo for stop motion animation. read more

The internet didn't come with privacy, any more than the planet did. But at least the planet had nature, which provided raw materials for the privacy technologies we call clothing and shelter. On the net, we use human nature to make our own raw materials. Those include code, protocols, standards, frameworks and best practices, such as those behind free and open-source software.