Docker Compose is a tool that allows you to define and manage multi-container Docker applications. It uses a YAML file to configure the application's services, networks and volumes.

Hostname is used to name the systems. Normally the computer networks work with IP addresses in order to identify and communicate. But hostname provides human friendly way to name, identify, communicate with other systems.

What’s important to note, however, is that WLinux is available on the Microsoft Store with a $19.99 price, but the distro is offered for a limited time with a 50 percent discount, so it costs just $9.99.

Linux powers the internet, the Android in your pocket, and perhaps even some of your household appliances. A controversy over politics is now seeing some of its developers threatening to withdraw the license to all of their code, potentially destroying or making the whole Linux kernel unusable for a very long time.

As the title itself states, nmap-xsl-bootstrap, a brand-new utility or, better to say an Nmap hack, that helps in beautifying the regular Nmap output which comes out of your Nmap scans.

Bitcoin’s code has been open source from the very beginning. (Satoshi) didn’t patent it or try to sell it. Meanwhile, his stash of roughly a million bitcoins, mined during the early days of the bitcoin network, has never been moved (aside from a few test transactions back in 2009). At its height in December 2017, Satoshi’s stash of one million bitcoins was worth about $20 billion, which would have made him the 44th richest man on the planet. Satoshi, however, does not appear to have ever touched his wealth. At the same time, Satoshi has not publicly revealed himself, which suggests he doesn’t care much about fame.

In this tutorial we will walk through how to generate SSH keys on Ubuntu 18.04 machines. We will also show you how to setup a SSH key-based authentication and connect to your remote Linux servers without entering a password.

While the release of Solus 4 isn’t around the corner for some time, the developers of this neat-looking and fast Linux distro have gone ahead and pushed a Solus 3 ISO refresh. They’ve called it Solus 3.9999.

Approximate or "fuzzy" matching on the command line is easily done with tre-agrep. Here's a practical example.

After years of verbally abusing programmers who contribute to the Linux operating-system kernel he created, the celebrated coder Linus Torvalds is stepping aside and says he is getting help.

It's always better to learn from someone else's mistakes than from your own. This weekend we feature Kyle Rankin and Bill Childers as they tell stories from their years as systems administrators. It's a win-win: you get to learn from their experiences, and they get to make snide comments to each other. 

If you’re ready to try Linux for programming, the next step is to choose which Linux distribution (aka distro) to use. In general, Linux operating systems are flexible, they offer a variety of tools and emulate a wide variety of environments, and they’re backed by active communities. But specifically, each Linux distro has its own features that may appeal more to you as a software developer. Here are the most popular Linux distros...

Earlier this week, the Linux community got an unusual message from Linux’s creator, Linus Torvalds. “This week people in our community confronted me about my lifetime of not understanding emotions,” wrote Torvalds in a Linux update email.

Ruby is one of the most popular languages today. It has an elegant syntax and it is the language behind the powerful Ruby on Rails framework. This tutorial will walk you through the steps of installing Ruby on a Debian 9 system.

News briefs September 21, 2018.

For the longest time, Deepin Linux was based on Ubuntu. But with the release of 15.7, that all changed. Now, Deepin’s foundation is Debian, but the desktop is still that beautiful Deepin Desktop. And when I say it’s beautiful, it truly is one of the most gorgeous desktop environments you’ll find on any operating system.

Nexcom’s Apollo Lake based “VTC 6220-BK” in-vehicle PC features triple displays, 2x SATA bays, 3x GbE with optional PoE, Ublox GPS, and 4x mini-PCIe or M.2 slots paired with SIM slots. Intel-based in-vehicle computers have been around for a while — here’s a Linux-friendly Kontron model from 2004 -– but over the last year or […]

Nitrux is a Linux distribution with a focus on portable, application formats like AppImages. Nitrux uses KDE Plasma 5 and KDE Applications, and it also uses our in-house software suite Nomad Desktop.

Every computer has a lot of hardware components. They are from different vendors and they have many important information associated with them. If you run into any problems with any of these hardware components, then this information is crucial to solve them. In this article, I will show you how to check for hardware info on Ubuntu.

In Linux, if you need to kill a process (for whatever reason) through the command line, you can you use the kill command, which requires you to pass as input the ID of the process you're trying to terminate. But did you know there also exists a way to kill processes without specifying their PIDs?

In this article, we will show several ways for you to install the VLC Media Player depending on whether you choose the graphical interface or the command line of your Ubuntu 18.04 system.

Many organizations, from Red Hat to internet-scale giants like Google and Facebook, have established open source programs (OSPO). The TODO Group, a network of open source program managers, recently performed the first annual survey of corporate open source programs, and it revealed some interesting findings on the actual benefits of open source programs. read more

“even if you don't consider yourself to be ‘a writer,’ you should consider writing about your open source contributions, project, or community.” Writing can be a great way to share knowledge and engage others in your work, but it has personal benefits as well. It can help you meet new people, learn new skills, and improve your communication style.

These days, some of our most important possessions—from pictures and videos of family and friends to financial and medical documents—are data. And even as cloud storage services are booming, so there are concerns about privacy and lack of control over our personal data. From the PRISM surveillance program to Google letting app developers scan your personal emails, the news is full of reports that should give us all pause regarding the security of our personal information. read more

Paperwork is a note-taking and archiving alternative to Evernote, Microsoft OneNote, and Google Keep, with the advantage of being FOSS (Free and Open Source Software), meaning it that can be hosted on the user premises, which is a requirement for people and businesses worried about privacy.

Red Hat reports second quarter revenue of $823M, as interest in container technology continues to grow

One of the key metrics or performance indicator of a microservices software architecture and environment is lead time (the amount of time it takes to get from idea to production). Many things have an impact on lead time, such as decision-making time, how quickly the code can be implemented, testing, continuous integration, etc. [This is part one of my ten-part Introduction to Istio series, originally published on Red Hat Developers.] read more

calcurse is an open source, text-based calendar and scheduling application. The software keeps track of events, appointments and everyday tasks.

A better alternative to a typical swap partition is to use a swap file, which is similar but gives you more control. Here’s how to create a swap file in Linux.

Jenkins is an open source, Java-based automation server that offers an easy way to set up a continuous integration and continuous delivery (CI/CD) pipeline. This tutorial will walk you through the steps of installing Jenkins on a CentOS 7 system using the official Jenkins repository.