In this tutorial, we will show you how to install and configure PostgreSQL 9.6 Master-Slave Replication on Ubuntu 16.04 server. We will use Hot standby mode, and it's a very good starting point to learn PostgreSQL in depth.

In a previous article, "Provisioning Docker with Puppet", in the December 2016 issue, I covered one of the ways you can install the Docker service onto a new system with Puppet. By contrast, this article focuses on how to manage Docker images and containers with Puppet.

Sometimes your current EC2 instance is over utilized meaning that, resources within EC2 instance such as CPU or memory are remaining at their peak all the time. In such case you need to scale up the EC2 instance. This article will quickly guide you about how to resize AWS EC2 instance (Backed by EBS volume) to match the load on the system.

Are you a new Linux user? Does your work involve shell scripting? If your answer to both these questions is yes, the tool we'll be discussing here will likely interest you. The name of the tool is dirname, and it's mostly used in situations where-in you need to strip the last component from an absolute file-name.

Wireshark, the world’s most popular network protocol analyzer, an open-source and cross-platform network tool used for troubleshooting, development, analysis, and education purposes, has been updated today to version 2.2.8.

In the prior articles in this series, we've looked at the fundamentals of graph databases and installed and started using Neo4j, a popular open source graph database. In this final article, we'll write some Perl code to do the same things as we did in the second article and point you to some other libraries for working with Neo4j in your own programming. read more

Audio formats are often easier to manage than video ones, but that doesn't mean that they don't come with their own headaches. For the most part, audio problems stem from DRM and losses in quality. While FFMPEG can't always help with DRM, it can help you to convert your files without losing quality.

With Open Container Initiative 1.0, container runtime and image specs have been standardized. Most companies are now exploring using containers. Some, especially in the government, have been reluctant to make the move and are waiting for container standardization. Their wait is over. The Open Container Initiative (OCI) has launched the 1.0 versions of container runtime and image specs.

You've probably heard many stereotypes about system administrators and the job itself. Like most stereotypes, they have varying levels of accuracy, so it's worth digging a little deeper if you're considering a career change. Here's the truth about are some of the things you may have heard about network and system administration. read more

A reminder of the fact that Microsoft very much hates GNU/Linux, lobbies against it (e.g. in Munich), blackmails companies that distribute it (using software patents) and shares all data stored by its software through back doors (for access by the NSA and other Western spy agencies)

What happens when a bunch of awesome UI designers work on their own Linux distribution? Nitrux happens!

Oracle announced the release and immediate availability of VirtualBox 5.1.24 as the latest and most advanced version of the open-source and cross-platform virtualization software.

VirtualBox is a free and open-source virtualization software for the x86 platform. The last maintenance release of 5.1 branch has featured more support for AMD Ryzen processors, emulating more SSE2 instructions and included many bug fixes.

First, we need to ask ourselves why we should bother choosing a license? Are you: presenting your software to the public? representing your software in a way that leads others to believe they can copy it or build on it? Then, yes, you should choose a license. Be fair to your visitors and back up the appearance of permission by expressly giving permission. read more

In our previous article we learned What is Gulp.js? And how it works?, that is why we will now focus on the configuration of common tasks using the plugins that Gulp.js offers us.

Here are some of Gulp.js’s most used plugins and their basic configurations:

In this OS Summit preview, we talked with Graber to understand the difference between system and application containers as well as how to work with physical devices in containers.

Server vendor Supermicro has entered into a global partnership with Linux vendor SUSE that will benefit customers with new integrated OpenStack cloud hardware

In this tutorial, we are going to provide you with step-by-step instructions on how to install WordPress with Memcached and Nginx on an Ubuntu 16.04 VPS.

Another day, another journalist claiming that Valve is killing SteamOS (amongst other things mentioned) and it couldn't be further from the truth. I'm going to be pretty blunt in this one, because it needs to be.

The recent tendency in our technology world is to move from using your personal computer for storage and processing of data to cloud-based storage and processing.

There are some distributions that use the cloud paradigm and offer the user cloud-based solutions in a single package.

If you missed out on going to #AnsibleFest in London last month don't worry, you can catch up on some of the things you missed in the videos of presentations.

?Codeblocks is an Integrated Development Environment (IDE) for programmers and developers. It comes with predefined tools to develop Qt applications, plugins, console applications, etc. considering one has installed the required tools independently (eg- Qt development tools). Most IDEs come with “project” feature and that’s the turning point because some of them requires user to create one before proceeding any further, where in some cases programming (in schools and colleges) exercise don’t really need tedious task of creating and setting up “projects” (More to this later).

Download the cheat sheet, then practice your fresh chat skills by connecting with one of your favorite open source communities in IRC.

A very cool 2D RTS game recently released on Steam with full day-1 Linux support. It turns out the game was actually built on Linux, if you're a Linux gamer and a fan of proper RTS games give this one a look!

Drupal is a free and open source content management system that can be used to create online content, website and user communities. It is written in PHP language, uses MySQL as a database backends and distributes under the GNU General Public License. In this article, we will demonstrate how to install Drupal 8 on Debian 9 server.

By now you’ve likely heard the benefits of two factor authentication. Enabling multi-factor authentication can increase the security of accounts you use to access various social media websites like Twitter, Facebook, or even your Google Account. This post is going to... Continue Reading →

Penguinistas knock, Redmond lowers the Drawbridge Microsoft's long, gentle embrace of Linux continues with the first release candidate of SQL Server 2017.…

Bluetooth in Linux is often hit or miss. If you haven’t had Bluetooth working out of the box, follow this guide to set up Bluetooth in Linux.

I like minimalistic views. If I could run everything in a terminal I would. It's free from shiny stuff that hogs my resources and distracts my feeble mind. I also grow tired of resizing and moving windows, never getting them to align perfectly. read more

UBports announced today on Twitter that they managed to successfully run their modification of Canonical's deprecated Ubuntu Touch mobile operating system on the Nexus 5 smartphone.