Port knocking is a security implementation that’s designed to reduce the visibility of TCP servers on the network. A good port knock tool renders TCP servers stealthy, making them invisible to port scanners.

Nearly 18 months after the company was re-organised, Mandriva, the French GNU/Linux company is making progress towards a release, according to Charles-H. Schulz, its marketing and open source relations manager.

Today in Open Source: Linux Mint may have to license Ubuntu binary packages. Plus: Firefox 26 available for download, and a Linux Mint 16 Xfce RC screenshot tour.

This guide explains how to install and configure postgreSQL database server and PhpPgAdmin in ubuntu server 13.10. PostgreSQL is a powerful and reliable object-relational database system. It’s a great alternative for MySQL databse server. It is as easy to set up, performs better and offers far more features.

RHEL 7 is based on the Fedora 19 community Linux release and the Linux 3.10 kernel, both of which first debuted in July. Red Hat has been hardening the Fedora 19 base over the last several months to ensure enterprise-grade stability, Ron Pacheco, senior manager of Platform Product Management at Red Hat, told eWEEK.

PC gamers who are champing at the bit to build their very own "Steam Machines" won't have to wait long to start tinkering, as Valve has revealed that its recently announced SteamOS will be available this Friday.

The announcement comes alongside word from Valve that its prototype Steam Machines, along with the companion Steam Controller, will be shipped out to 300 randomly selected US beta testers on Friday.

CentOS 6.5 includes several welcome upgrades for web hosting companies, including OpenSSL 1.0.1, closing several security vulnerabilities.

New dev language for polishing backends, plus HTML5 tools open-sourced SAP is embracing open-source developers to promote its flagship HANA in-memory data and application architecture

The recently released Mint 16, nicknamed Petra, might be the perfect Linux desktop for newcomers. At its core is Ubuntu 13.10, but on top of this are desktops Mate and Cinnamon, the latter being the Mint project's homegrown user interface. Ubuntu gives a stable foundations on which to build, allowing the project to focus more on its desktops and less on the underpinnings. The result is a pair of desktops both worthy of consideration but with Cinnamon far more interesting as its hits version 2.0

Following the announcement of "Steam Machines" from Valve to "conquer" the living room, the first "Steam Machine" has been revealed recently. The American company iBuyPower has revealed its own vision of a Steam box to compete with the recently released game consoles from Microsoft and Sony.

Red Hat's newest enterprise Linux takes one giant step forward to its release and shifts from MySQL to MariaDB for its database management system needs.

Mere weeks after shipping the final version of Red Hat Enterprise Linux (RHEL) 6.5, Shadowman has announced the first public beta of RHEL 7.

In the era of "big data", large text files (GB or more) could be commonly encountered around us. A typical text editor may not be designed to deal with such large text files efficiently, and may simply get choked while attempting to open a big file, due to insufficient memory. If you are a savvy system admin, you can probably open or touch an arbitrary text file with a combination of cat, tail, grep, sed, awk, etc. In this tutorial, I will discuss more user-friendly ways to open (and possibly edit) a large text file on Linux.

The battle between the good guys and bad guys is a never-ending one. And as they say in the industry, if you have something that somebody wants to gain access to badly enough, they will keep taking shots at it until they succeed. The question is, when will you know that they have succeeded, during or after?

I have recently written an article about configuring multiple keyboard layouts in different Linux desktop environments: Xfce, Cinnamon, MATE.

That was a text version.

Today I will show you a video about keyboard layouts configuration in Xfce.

When the US Federal government shutdown from October 1 - 16 this year, a small Drupal shop in the Washington DC area turned a list of freelance gigs for furloughed employees in a Google doc into a website in five hours. Unfurlough.us went live at 1:00 am EST on October 4, accumulating 50,000 page views in a little over a week.

You can use the Raspberry Pi to do all kinds of geeky stuff, but one of the most interesting uses for the little device is that of a home theatre PC.

ownCloud, Inc. is proud to announce today, December 11, that the Community Edition of its highly anticipated ownCloud 6 open source DYI (Do It Yourself) cloud server software is now available for download/upgrade with an improved design.

It's been a while since last looking on the anti-aliasing performance of the R600 Gallium3D driver so for this article we have some fresh MSAA benchmarks of the driver from Mesa 10.1-devel and using a Cayman-based high-end AMD Radeon graphics card.

The MintBox 2 is here, and it’s more powerful than ever. Just how much power are you getting for nearly £400 though?

RadiumBoards announced a $50 “HD Camera Cape” for the BeagleBone Black with a 1.3-megapixel Aptina sensor that provides 720p, 30fps video and Linux and Android support. There’s now a second commercially available camera cape (add-on board) for the BeagleBone Black single board computer, following up on CircuitCo’s 3.1-megapixel BeagleBone 3.1MP Camera Cape. The $50 HD Camera Cape comes from RadiumBoards, a Haryana, India based subsidiary of VVDN Technologies, and provides 720p, 30 frames per second video capture.

Last year, a third of honeybee colonies in the United States quite literally vanished. Commercial honey operations, previously abuzz with many thousands of bees, fell suddenly silent, leaving scientists and beekeepers alike scratching their heads. The reasons remain mostly a mystery for what is called Colony Collapse Disorder—a disturbing development of the drying up of beehives throughout the industrialised world. Unfortunately, there's a lot more to the problem than simply running out of honey. Bees are one of the most abundant pollinators in the natural world. They are the unsung, unpaid facilitators of human agricultural practices and have been for as long as we have sewn seeds. Their disappearance would spell disaster for our food supply, with some estimating our species lasting only four years on this planet without them. So, what can be done?

The microcontrollers allow any developer to “add vibrational feedback to all capacitive touch buttons, sliders and wheels on mobile computing and gaming devices, smart TV remotes, cameras, printers, industrial control panels, point-of-sale terminals and toys.”

The Book of Audacity is a fun to read, comprehensive guidebook to the popular free audio recording and editing program. The real value in this book? Tons of useful tips.

If you read the technology press today, odds are you already know about the launching of the AllSeen Alliance That’s not a surprise, because this is an important and ambitious project. But there’s a story behind the story that likely won’t get the attention that it deserves.

It kept nagging at me. Why was the "hot corner" in Debian's version of GNOME 3 so "sensitive," compared to the GNOME 3 desktop's hot corner in Fedora 19? I did a bit of searching and found out that "hot corner" sensitivity was something that the user can set, not in stock GNOME 3 but with the Activities Configurator extension.

Linux Mint Xfce, a modern, elegant, and comfortable operating system based on Ubuntu and Debian, has just reached version 16 RC.

The Joomla community announced Joomla Framework 1.0, making a major step forward for the Joomla project.

The Princess Bride remains quite the iconic book and movie for tons of people who grew up in the 1970s and 1980s (and, hopefully, other ages as well... but I can only speak from experience). A huge number of lines have lived on from that movie and become mainstays in popular culture. And like all sorts of great culture, it has inspired plenty of additional creativity around the original as well.

In a Network Operation Centre (NOC) environment, setting up alerts is extremely important. As one of the most popular NOC monitoring systems, Nagios features powerful alerting services. Alerts generated by Nagios can be sent out in various means, so that they can be acted upon immediately. Email notification is the most common option used. This tutorial presents two other ways to send out Nagios alerts: (1) audio alerts via web browser, and (2) audio/vibration alerts via an Android app.