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One of the most important public services is timekeeping, but it doesn't get a lot of attention. Most public time servers are run by volunteers to help meet always-increasing demands. Learn how to run your own public time server and contribute to an essential public good...

Sometimes, you come across a command line tool that offers limited functionality on its own, but when used with other tools, you realize its actual potential. Once such tool is seq, which prints a sequence of numbers.

This article describes the working of tuned daemon profiles on the Red Hat Enterprise Linux (RHEL) operating system version 7.x and CentOS version 7.x. It also describes the differences in the performance of tuned daemon profiles in the two operating systems.

In a few days, on February 3, the 20th anniversary of the introduction of the term "open source software" is upon us. As open source software grows in popularity and powers some of the most robust and important innovations of our time, we reflect on its rise to prominence. read more

The open-source and free LibreOffice is looking better than ever.

Open-source firms hook up for $250m Enterprise Linux biz Red Hat on Tuesday said it has reached an agreement to acquire CoreOS, a maker of open source container software, for $250 million.…

Congatec unveiled a Mini-ITX style “conga-IT6” board that uses a plug-in COM Express module to supply processor and other core functions. CPU options currently include Intel Core, Xeon, Celeron, and Pentium, and AMD G-series and R-series chips, with up to 4x CPU cores and clocked at up to 4.3GHz. Congatec, which manufactures computer-on-modules and single-board […]

When hacking with a Raspberry Pi Zero (or similar device), many makers use the General Purpose Input / Output (GPIO) pins. These pins are used to attach and control a wide range of devices such as LEDs or sensors to measure temperature, light, or humidity. However, if you prefer to code on your desktop or laptop this may be an issue since most of these devices don’t have accessible GPIO pins. This is where GPIO expander software can help.

This article was co-written with Lacey Williams Henschel. Offloading the responsibility for making your app secure onto QA testers or an information security office is tempting, but security is everyone's responsibility. The Django Admin is one of our favorite features of Django, but unless it's locked down correctly, it presents opportunities for exploitation. To save your users from compromised data, here are 10 tips to make the Django Admin more secure.

Aaeon’s “RICO-3399” SBC runs Android 7.0 on the Rockchip RK3399, with 2x Cortex-A72 and 4x -A53 cores, plus 2GB RAM, 16GB eMMC, and GbE, HDMI 2.0, USB 3.0, serial, and mini-PCIe connections. Aaeon has posted details on an SBC based on its similarly Pico-ITX and Rockchip based RICO-3288.

At Red Hat we like to say, "Containers are Linux—Linux is Containers." Here is what this means. Traditional containers are processes on a system that usually have the following three characteristics: 1. Resource constraints When you run lots of containers on a system, you do not want to have any container monopolize the operating system, so we use resource constraints to control things like CPU, memory, network bandwidth, etc. The Linux kernel provides the cgroups feature, which can be configured to control the container process resources.

If you work with OpenStack, you know it can be challenging to keep up with all of the various features, tools, related project, and other technical details that you need to do your job, whether that’s as a developer, an architect, or a sysadmin.

SuiteCRM is an open source CRM (Customer Relationship Management) software based on PHP. It is a fork of the popular CRM software 'SugarCRM', and has become more popular after 'SugarCRM' decided to stop the development of the free version. In this tutorial, I will show you step-by-step how to install the open source CRM 'SuiteCRM'.

News briefs for January 31, 2018.

Mozilla has patched a nasty security bug in Firefox, affecting versions 56, 57 and 58, and their point updates.

Kyle Rankin, Tech Editor, announces our "new" monthly publication and describes how you can help the LJ community.

News updates for January 30, 2018.

Did Google score a complete victory against Android malware last year? No. Did it win? Yes.

Shenzhen Xunlong has launched a $109, open source “Orange Pi RK3399” SBC that runs Android 6.0 or Debian 9 on Rockchip’s hexa-core RK3399 SoC, and offers HDMI 2.0 in and out ports, DP 1.2, eDP, MIPI DSI and CSI, SPDIF, GbE, mSATA, mini-PCIe, a 40-pin header, and more. One by one, ARM hacker board vendors […]

DomTerm is a modern terminal emulator that uses a browser engine as a "GUI toolkit." This enables some neat features, such as embeddable graphics and links, HTML rich text, and foldable (show/hide) commands. Otherwise it looks and feels like a feature-full, standalone terminal emulator, with excellent xterm compatibility (including mouse handling and 24-bit color), and appropriate "chrome" (menus). read more