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Docker has revolutionized how web applications are hosted and servers are run. Docker containers allow server administrators to compartmentalize their applications like virtual machines, but containers are much lighter weight, are easier to manager, and add less overhead. Installing Docker on Ubuntu is very simple. Because Ubuntu is a popular choice for the cloud, the entire process has been streamlined to a science.

The appearance of Hadoop and its related ecosystem was like a Cambrian explosion of open source tools and frameworks to process big amounts of data. But companies who invested early in big data found some challenges. For example, they needed engineers with expert knowledge not only on distributed systems and data processing but also on Java and the related JVM-based languages and tools.

While many schools invest in Chromebooks and iPads, a growing flock of Linux-forward institutions is mapping an alternate route. I recently caught up with one innovative educator and IT leader from my home state. Aaron Prisk is the network administrator at West Branch Area School District, a small rural school an hour north of State College, Pennsylvania. read more

Some of the most common mistakes that newbies make when using Linux desktops for the first time.

Mozilla thinks you won’t mind analytical action on the client. The Mozilla Foundation has revealed that links to sponsored content have started to appear in its Firefox browser and pledged it delivers them without invading users’ privacy.…

Opensource.com contributor Brendan Gregg gave an UPSCALE talk at SCaLE 16x in March and we posted the video, CPU utilization is wrong, which was a big hit with readers last week. Read on for more of our most popular posts from the week of April 23-29.

News briefs for April 30, 2018.

What is often a surprise to people is how massive open source is on mainframe. Ninety percent of mainframe customers leverage Linux on their mainframe, with broad support across all the top Linux distributions along with a growing number of community distributions. Key open source applications such as MongoDB, Hyperledger, Docker, and PostgreSQL thrive on the architecture and are actively used in production.

Recently, while experimenting with GTK and its Ruby bindings, I decided to write a tutorial introducing this functionality. In this post, we will create a simple ToDo application (something like what we created with Ruby on Rails) using the gtk3 gem (a.k.a. the GTK+ Ruby bindings). You can find the tutorial's code on GitHub. read more

Blockchain is all the rage! And, Dr. Christian Reitwiessner is in the midst of the storm. As one of the creators of Solidity, we were thrilled that he was willing to take the time to answer questions from the LinuxCareer crew. He provided great depth on his thoughts on not only Solidity, but Ethereum overall. Hopefully, you will find his insight as compelling as we did.

Sometimes we might require the information about the Linux system we are running, information like Linux/Distro version, its kernel , release name etc. In this tutorial, we will discuss many commands with which we...

Files is an essential application in the GNOME desktop. Many users interact with it daily to navigate, find and open files. Here are some changes in GNOME 3.28 users will see in the Fedora 28 release. Upcoming features in Files Each release cycle, GNOME community members improve and enhance the user experience with design and […]

There are certain Linux utilities that are aimed at performing a single task and hence offer very few or no command line options. Two such tools are which and whoami. In this tutorial, we will discuss these commands using some easy to understand examples.

Efforts to work around serious hardware flaws in Intel chips are ongoing.

This is a guide on how to install Unity Desktop in Ubuntu 18.04 LTS, by using a meta-package that installs all the required packages to run Unity, just like it was in Ubuntu 16.04, including the Lightdm login screen, the complete Unity interface with global menu, default indicators, and so on.

You'll also find instructions on how to completely remove Unity if you want to go back to using Gnome (Shell) on your Ubuntu 18.04 LTS computer.

System76 value-added computer reseller released the Pop!_OS Linux 18.04 operating system for their computer lineup as well as anyone else who wants to install their Ubuntu-based GNU/Linux distribution.

The Eclipse IoT Developer Survey shows Linux (led by Raspbian) is the leading IoT platforms at 71.8 percent, with FreeRTOS pressing Windows for second place. AWS is the leading IoT cloud platform. The Eclipse Foundation’s Eclipse IoT Working Group has released the results of its IoT Developer Survey 2018, which surveyed 502 Eclipse developers between […]

Logging by nature is complex and in containerized environments there are new challenges that need to be addressed. In this article we will describe the current status of the Fluentd Ecosystem and how Fluent Bit (a Fluentd sub-project) is filling the gaps in cloud native environments.

Getting system hardware information is not a problem for Linux GUI and Windows users but CLI users face trouble to get these details. Even most of us don’t know what is the best command to get this. There are many utilities available in Linux to get system hardware information. This tutorial allows you to check System Hardware Manufacturer, Model And Serial Number in Linux.

Sometimes you might want to hide the history of commands you typed in the shell on Linux. This is e.g. useful when you are building a server image to roll out multiple virtual machines. The command shown below will work on all Linux Distributions (CentOS, Debian, Ubuntu, etc).