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HAProxy or High Availability Proxy is an open source TCP and HTTP load balancer and proxy server software. In this tutorial, I will guide you trough the HAProxy installation and configuration for 3 servers, one load balancer, and two Nginx web servers. We will install HAProxy on a single server and then install Nginx web server on the other servers. HAProxy acts as a load balancer for the Nginx web servers.

Aaeon’s rugged “Boxer-6638U” industrial PC runs Linux on a 5th Gen Core i3, and offers four COM ports, 9-24V input, and -20 to 60°C operation. Despite the different branding schemes, the “economical” Boxer-6638U is said to be the follow-on to Aaeon’s similarly stripped down, 4th Generation “Haswell” based AEC-6638 box-PC.

Members of the Red Hat Developer Program can now get a no-cost Red Hat Enterprise Linux license.

We will continue our extensive coverage of SBCs and COMs, but will reduce our coverage of end user products and expand our coverage of OSes beyond Linux. In celebration of LinuxGizmos.com's third birthday, and 16 years after I launched its predecessor, LinuxDevices.com, we have decided to make some exciting changes to the site.

The Arduino is a truly powerful piece of electronics. Small, low power, flexible, and completely open source. Lots of makers and hackers have already figured out that giving their project an Arduino-brain ensures a simple, yet powerful and reliable core.

Google pushed out the latest version of Chrome Thursday afternoon, fixing five issues, four of them critical. The update remedies an out-of-bounds read in Chrome's open source JavaScript engine V8, two use-after-free vulnerabilities - one in Navigation and one in Extensions - and a buffer overflow in the libANGLE library.

OpenStack is a huge project with lots of moving parts, and it can be hard to keep up with everything that's going on in the project and how it affects you. The good news is that in addition to the official documentation, there are a number of great resources for continuing your education, from third party training and certification to meetups to many community-contributed tutorials.

Even as the White House is calling on federal agencies to make more use of open source projects, there's also a federal effort under way to reduce the number of vulnerabilities in those products via better code review tools and bug bounties.

Building botnets made up of routers, modems, wireless access points and other networking devices doesn't require sophisticated exploits. Remaiten, a new worm that infects embedded systems, spreads by taking advantage of weak Telnet passwords.

Xamarin casts off commercial roots. BUILD 2016 Microsoft will make Xamarin tools and code, which enable compilation of Mac, Android and iOS applications using C#, free and open source, said corporate VP Scott Guthrie at the company's Build conference under way in San Francisco.

The Linux Foundation is offering a free class to help open-source developers stay on the right side of intellectual property law.

With Gartner predicting that 70% of new applications soon will be deployed on an open-source relational database, purveyors of proprietary DBMSes surely long for the golden lock-in age of yore.

In this article, an encrypted partition is opened using a secret key which is kept in an usb memory device. An automatic shell script is used to provide a secret key for encrypted volume at boot time.

If you have a lot of your services hosted in the Amazon AWS public cloud, and are looking for ways to access your leased AWS resources in a secure way, this article is for you. Initially you started out accessing Amazon AWS over the public Internet. Over time, you have migrated more and more services...

Plug in. Go, go, go BUILD 2016 Microsoft’s love of Linux is extending to its flagship Visual Studio suite.…

Deeplearning4j is an open source, distributed neural net library written for Java and Scala. It is also one of the most active communities on Gitter, the chat service I created. Interested in how they built a thriving open source community, I reached out to get their thoughts on the lessons they learned. read more

KDE has a long tradition of providing user interface components beyond the basics that are offered in Qt itself. With KDE Frameworks 5, these have become more easily available for Qt developers who are not part of KDE. Now, with KDE's focus expanding beyond desktop and laptop computers into the mobile and embedded sector, our QWidgets-based components alone are not sufficient anymore.

Once upon a time, new software shipped with massive manuals the size of telephone directories.

We’re always working to make Firefox as great as possible on all platforms. Today, we’re adding features to Firefox for iOS to protect your security. The Firefox Password Manager securely stores and autofills your usernames and passwords across sites you.

The Fedora Workstation features the GNOME desktop environment, which makes computing easy and beautiful. GNOME includes the Files app for organizing and managing your personal data. This is the first in a series of articles that shows you how to use this.