Showing headlines posted by bob

What is in a Kubernetes namespace? As Shakespeare once wrote, which we call a namespace, by any other name, would still be a virtual cluster. By virtual cluster, I mean Kubernetes can offer multiple Kubernetes clusters on a single cluster, much like a virtual machine is an abstraction of its host.

The end of the year is a perfect time to look back on some of the Magazine’s most popular articles of 2019. One of the Fedora operating systems’s many strong points is its wide array of tools for system administrators. As your skills progress, you’ll find that the Fedora OS has even more to offer. […]

As another great year wraps up at Opensource.com, my fascination with all things Bash has me looking back at the top 10 Bash articles we published in 2019. These articles include basic how-to articles, tools, shortcuts, and even a way to build your own command-line game with Bash. I didn't select these articles based solely on the number of hits they had but rather on a number of criteria. In the true spirit of top 10 countdowns, the top Bash article from 2019 is at the end for the final reveal.

The most humble of window managers, TWM, is a little akin to those sample photographs you get when you buy a picture frame. It's basic, almost a bare-minimum proof of concept that Xorg ships with the X11 Windows System to demonstrate that a desktop can indeed be created for a graphical user interface (GUI).

Docker Compose is a tool that can be used to define and run multiple containers as a single service. In this tutorial, we will show you how to install and use Docker Compose in CentOS 8.

When the UDE project started in 1996, the developers took on a bold name—Unix Desktop Environment (UDE)—and held high hopes of reinventing what a desktop could be. They weren't just trying to redefine Unix desktops; they were trying to change the way users interacted with applications on their system.

Python contributor Tim Peters introduced us to the Zen of Python in 1999. Twenty years later, its 19 guiding principles continue to be relevant within the community. We start our Pythonukkah celebration—like Hanukkah, a festival of lights—with the first two principles in the Zen of Python: on beauty and explicitness.

There are organizations helping to accelerate tech for good by connecting developers who want to make a change with communities and nonprofits who desperately need better technology. These organizations often serve specific audiences and recruit specific kinds of technologists, but they all share a common thread: open source.

RAK has launched a $212 and up “RAK7244 LoRaWAN Developer Gateway” with a Raspberry Pi 4, a LoRa and GPS enabled RAK2245 Pi HAT, and an optional RAK2013 Cellular Pi HAT with a Quectel EG95 LTE CAT4 module. RAK Wireless’ latest gateway for low-power, long distance LoRa communications offers optional LTE. The RAK7244 LoRaWAN Developer […]

The Plasma desktop by the KDE community is a pinnacle among open source desktops. KDE got into the Linux desktop market early, but since its foundational Qt toolkit did not have a fully open license at the time, the GNOME desktop was created. Since then, Qt has become open source, and KDE (and its derivatives, like the Trinity desktop) has thrived.

In the first article in this series, you created your first, very small, one-line Bash script and explored the reasons for creating shell scripts. In the second article, you began creating a fairly simple template that can be a starting point for other Bash programs and began testing it. read more

Lambda falls under “Compute” service in AWS (Amazon Web Services). Using Lambda we can code without provisioning or managing servers. In this article, we will see how to create a simple Lambda function that can start/stop an EC2 instance.

Textpattern is a free and open-source PHP content management system. It is rather lightweight, fast, and easy to use while providing decent customizability through themes and plugins. In this guide, we will install Textpattern on a fresh Debian 10 instance.

Everybody loves Vim (aside from Dvorak and Emacs users). Vim is so popular that there are entire web browsers dedicated to navigating the web with Vim keybindings, a Vim mode in the wildly popular Zsh terminal emulator, and even a text editor. read more

In the first article in this series, you created a very small, one-line Bash script and explored the reasons for creating shell scripts and why they are the most efficient option for the system administrator, rather than compiled programs. In the second article, you began the task of creating a fairly simple template that you can use as a starting point for other Bash programs, then explored ways to test it. read more

Search is a central concept in the GNOME user experience. It provides quick navigation and shortcuts to recently used documents, places and software. A search provider is used by an application to expose such data to the users via the GNOME Shell search screen. As for Web browsers currently only Gnome Web (Epiphany) have integrated […]

osTicket is an open-source ticketing system on the Linux platform written in PHP. In this tutorial, I will show you how to install osTicket on Ubuntu 18.04, using Nginx as a web server, MySQL/MariaDB as a database server and PHP.

Amazon, Apple, Google, and the Zigbee Alliance have formed a “Connected Home over IP” group to develop an open source smart home connectivity standard. Meanwhile Silicon Labs plans to relaunch its Z-Wave spec as a “ratified, multi-source wireless standard” open to all silicon and stack vendors for development. Three of the leading smart home device […]

As part of my role as a senior product marketing manager at an enterprise software company with an open source development model, I publish a regular update about open source community, market, and industry trends for product marketers, managers, and other influencers. Here are five of my and their favorite articles from that update.

Maybe you don't like desktops. Maybe even a lightweight window manager seems excessive to you. Maybe all you really use is a graphical user interface (GUI) application or two, and you're otherwise perfectly happy living in a terminal all day. If one or more of these sentiments sound familiar, then Ratpoison is the solution. read more