Introducing our Jinja2 cheat sheet

February 20, 2020, 3:40 pm CST

Jinja2 is a templating language for Python. While it got its start on the web for use with the Flask framework, it is popular in many other places. Both Flask and Pelican use it to template HTML pages, allowing seperation between style and content.

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Open Source Did Not Win, It Was Assimilated to and by Proprietary Software

February 20, 2020, 2:25 pm CST

Don’t fall for the whole “Open Source has won!” spiel; You know we’ve lost the battle (and were in effect gradually conquered) at OSI and elsewhere when those who speak for the OSI are Michael Cheng (Facebook), Max Sills (Google), and Chris Aniszczyk (Linux Foundation); they say “Open Source Under Attack” (FOSDEM talk) but their employers are the ones attacking and they downplay openwashing

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Using Python and GNU Octave to plot data

February 20, 2020, 1:11 pm CST

Data science is a domain of knowledge that spans programming languages. Some are well-known for solving problems in this space, while others are lesser-known. This article will help you become familiar with doing data science with some popular languages.

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Create web user interfaces with Qt WebAssembly instead of JavaScript

February 20, 2020, 4:40 am CST

When I first heard about WebAssembly and the possibility of creating web user interfaces with Qt, just like I would in ordinary C++, I decided to take a deeper look at the technology.

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Fedora at the National Library of Technology

February 20, 2020, 3:26 am CST

Where do you turn when you have a fleet of public workstations to manage? If you’re the Czech National Library of Technology (NTK), you turn to Fedora. Located in Prague, the NTK is the Czech Republic’s largest science and technology library. As part of its public service mission, the NTK provides 150 workstations for public […]

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GNOME 3.34.4 Released with Various Improvements and Bug Fixes

February 20, 2020, 2:12 am CST

The GNOME Project announced today the general availability of GNOME 3.34.4 as the fourth maintenance update to the latest GNOME 3.34 desktop environment stable series.

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Raspberry Pi Zero W based LoRaWAN gateway sells for $99

February 20, 2020, 12:57 am CST

RAK Wireless’ $99 “RAK7246 LoRAWAN Developer Gateway” runs a Raspbian LoRa stack on a Raspberry Pi Zero W with a RAK2246 Pi HAT for 8x uplink channels and a single downlink. A $114 RAK7246G model adds GPS. RAK Wireless has introduced a cheaper alternative to its Raspberry Pi 4-based RAK7244 LoRaWAN Developer Gateway. The RAK7246 […]

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How To Add Markdown Support To Gedit Using `Markdown Preview` Plugin

February 19, 2020, 11:43 pm CST

Gedit, the default GNOME text editor, doesn't support Markdown by default. It does support plugins though, so with the help of a plugin called Gedit Markdown Preview, you can add Markdown support to modern Gedit versions (3.22 and newer).

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How to open a Linux terminal window

February 19, 2020, 10:29 pm CST

Say you are new to Linux world and just installed Linux desktop and now you would like to fire up terminal window and start issuing commands, but wait you don’t know how to access a terminal window in Linux, in this article I will walk you through how to open a Linux terminal window and set up a keyboard shortcut for easier access.

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Editorial
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Larry Tesler cut and pasted from this mortal coil: That thing you just did? He probably invented it

February 19, 2020, 9:14 pm CST

PARC, Apple and Amazon – computing pioneer dies at 74. Obit Larry Tesler – self-described "primary inventor of modeless editing and cut, copy, paste" – has died at the age of 74.…

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Total War: THREE KINGDOMS – Mandate of Heaven DLC Is Out Now on Linux

February 19, 2020, 8:00 pm CST

Feral Interactive announced today that the Total War: THREE KINGDOMS – Mandate of Heaven Chapter Pack DLC is now available for Linux and macOS systems.

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Antitrust Laws and Open Collaboration

February 19, 2020, 6:46 pm CST

The classic way for companies to violate the antitrust laws is to get together and agree to all do something the same way. Happily, the regulators understand that creating open standards and open source is a good thing. But you still have to keep the rules in mind if you want to stay on the right side of the line.

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Editorial
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Stop Installing Python Packages Globally — Use Virtual Environments

February 19, 2020, 5:31 pm CST

With virtual environments, you can isolate your software and avoid version conflicts.. Python virtual environments allow you to install Python packages in an isolated location for a particular application, instead of installing them globally. This articles explores what the advantages are and how you can quickly get started.

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How to use, read and manage Linux log files

February 19, 2020, 4:17 pm CST

Ubuntu logs system events into the log files in order to help administrators maintain, analyze and diagnose system related issues and applications problems. Log files contain messages related to kernel, services and applications events that are kept on a centralized repository of log files under /var/log directory. In this article, we will provide an overview of Ubuntu log files, and show how to configure and use syslogd. You will also learn how log rotation works and how to view and read the log files. A brief introduction to systemd will be provided at the end .

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How to Load Balance a PHP Application in Ubuntu using GCP

February 19, 2020, 3:03 pm CST

How to Load Balance a PHP Application on GCP. This guide provides you with detailed and advanced steps to setup a HTTP(S) Layer 7 Load Balancer for your PHP web application.

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The only option brought me to success installing telegram-desktop on CentOS 8.1 appears to be snap

February 19, 2020, 12:34 pm CST

In meantime the only option brought me to success installing telegram-desktop on CentOS 8.1 appears to be snap.

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Security
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Raspberry Pi 4: Chronicling the Desktop Experience – Retro Gaming – Week 17

February 19, 2020, 11:20 am CST

For this week, I’m going to look at a few retro games, all nestling in Raspbian’s repositories. While its quad-core BCM2711 system-on-chip has more powerful processing cores, and the first upgrade to the graphics processor in the project’s history, it’s important to be realistic with expectations about the RPI4’s gaming potential.

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Security
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Raspberry Pi 4: Chronicling the Desktop Experience – Retro Gaming – Week 17

February 19, 2020, 11:20 am CST

For this week, I’m going to look at a few retro games, all nestling in Raspbian’s repositories. While its quad-core BCM2711 system-on-chip has more powerful processing cores, and the first upgrade to the graphics processor in the project’s history, it’s important to be realistic with expectations about the RPI4’s gaming potential.

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How to find what you’re looking for on Linux with find

February 19, 2020, 10:05 am CST

There are several commands for finding files on Linux systems, but there are also a huge number of options that you can deploy when looking for them. Here’s a look at some of those options.

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Security
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How to find what you’re looking for on Linux with find

February 19, 2020, 10:05 am CST

There are several commands for finding files on Linux systems, but there are also a huge number of options that you can deploy when looking for them. Here’s a look at some of those options.

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How to compress JPEG or PNG images in Linux using the terminal

February 19, 2020, 7:37 am CST

There are many GUI applications on Linux that help optimize and compress images while retaining the original quality. In this article we will use two command-line based utilities , jpegoptim and OptiPNG. Let’s get started.

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How to Install TeamPass Password Manager on Debian 10

February 19, 2020, 6:22 am CST

TeamPass is a collaborative password manager used for managing passwords and sharing them among team members with a specific role. In this tutorial, we will show you how to install TeamPass on Debian 10 and secure it with Let's Encrypt SSL.

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Pgrep Command in Linux

February 19, 2020, 5:08 am CST

The pgrep command is used to find out the PIDs of a running program based on different criteria.

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Linux-driven i.MX8M Nano module is smallest yet

February 19, 2020, 3:54 am CST

F&S announced a 40 x 35mm “PicoCore MX8MN” module that runs Linux on a single- or quad-core, 1.5GHz i.MX8M Nano with up to 8GB RAM, 32GB eMMC, and optional WiFi/Bluetooth and -40 to 85°C support. At Embedded World later this month, F&S Elektronik Systeme will show a working demo of a tiny compute module due […]

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Thank You, Ronaldo Lemos

February 19, 2020, 2:39 am CST

Ronaldo Lemos joined the Mozilla Foundation board almost six years ago. Today he is stepping down in order to turn his attention to the growing Agora! social movement in Brazil. …

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The Linux Foundation identifies most important open-source software components and their problems

February 19, 2020, 1:25 am CST

In its latest study, the Linux Foundation's Core Infrastructure Initiative discovered just how prevalent open-source components are in all software and their shared problems and vulnerabilities.

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Editorial
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4 Ways to Kill Unresponsive Applications in Debian 10

February 19, 2020, 12:11 am CST

This tutorial shows 4 different ways to kill an unresponsive application by using the Debian GNOME GUI and the command line.

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Tutorial
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Red Hat tips its Fedora at CoreOS Container Linux stans: Hop onto something else, folks, cos this one's on a boat to Valhalla

February 18, 2020, 10:56 pm CST

Support ends May 26. Users fretting over Fedora CoreOS's limitations might want to jump into Flatcar. Red Hat is set to fling a flaming arrow at Red Hat CoreOS Container Linux*, the software firm said as it laid out the details of the end of life timeline for the distro it acquired in January 2018.…

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Is Linux Foundation a Microsoft Branch Now?

February 18, 2020, 9:42 pm CST

The so-called ‘Linux’ Foundation (LF) nowadays helps Microsoft cement its monopoly — the very opposite of what ages ago it said the LF would do

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Editorial
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Changing TTY prompt, font and colors

February 18, 2020, 8:28 pm CST

Bored with a plain, white-on-black virtual terminal? You can make it more to your liking, but be prepared for some difficulties.

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SparkyLinux 2020.02 GameOver, Multimedia and Rescue Editions Are Out Now

February 18, 2020, 4:45 pm CST

SparkyLinux 2020.02 “Po Tolo” special editions, including GameOver, Multimedia and Rescue, are now available for download for fans of this semi-rolling, Debian-based GNU/Linux distribution.

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How to run a command in Linux every x seconds

February 18, 2020, 3:30 pm CST

Oftentimes you need to run a command every X seconds on Linux. Granted you can use cron but unfortunately, it does not handle time granularities of less than a minute.

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Canonical Makes It Easier to Download Ubuntu for Raspberry Pi

February 18, 2020, 1:02 pm CST

Canonical’s Design and Web team have recently updated the official Ubuntu website to make it easier for users to find the right Ubuntu image for their tiny Raspberry Pi computers.

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How To Limit The Number Of SSH Logins Per User/Group/System On Linux

February 18, 2020, 11:47 am CST

This brief tutorial explains how to limit the number of SSH logins per user or group or system on Linux using /etc/security/limits.conf file.

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Security
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Linux distro review: Intel’s own Clear Linux OS

February 18, 2020, 10:33 am CST

Clear Linux OS is the best benchmarking distro. But what's it like to live with?

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Reviews
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How to run applications at startup on Ubuntu 18.04?

February 18, 2020, 9:19 am CST

Startup applications are the programs that are launched automatically when Ubuntu boots up. Sometimes you want to make an application start after you log in to the system, like for instance a chat app or fan controller app, etc..

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How to run applications at startup on Ubuntu 18.04?

February 18, 2020, 9:19 am CST

Startup applications are the programs that are launched automatically when Ubuntu boots up. Sometimes you want to make an application start after you log in to the system, like for instance a chat app or fan controller app, etc..

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OTRS installation on RHEL 8

February 18, 2020, 8:04 am CST

OTRS is an open source service management solution used by many companies around the world. It's extensibility and ability to integrate with other systems no doubt add to it's popularity. Written in perl, this software will run on mostly anything, and it's low requirement on resources makes it ideal even for a small business to start ticketing, or standardize their internal processes.

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Release Roundup: MyPaint 2.0.0, Blender 2.82, cheat 3.6.0, Gammy 0.9.56 and Drawing 0.4.11

February 18, 2020, 6:50 am CST

Quite a few free and open source applications have been updated over the weekend. I don't have time to post articles about all of them separately, so this article covers (in short summary) the new releases of MyPaint 2.0.0, Blender 2.82, cheat 3.6.0, Gammy 0.9.56 and Drawing 0.4.11.

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Roundups
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How to Install VirtualBox Guest Additions on Debian 10

February 18, 2020, 5:36 am CST

The Guest Additions offer several useful functionalities for guest machines such as shared folders, shared clipboard, mouse pointer integration, better video support, and more.

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Roundups
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How to Install VirtualBox Guest Additions on Debian 10

February 18, 2020, 5:36 am CST

The Guest Additions offer several useful functionalities for guest machines such as shared folders, shared clipboard, mouse pointer integration, better video support, and more.

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Configuring static and dynamic IP Addresses in Ubuntu using Netplan

February 18, 2020, 4:21 am CST

Ubuntu automatically assigns an IP address to the network via DHCP (Dynamic Host Configuration Protocol ). It will continue to get such a dynamic IP (keeps changing) address until you decide to change it to a static one. Ubuntu has switched to the YAML based Netplan for configuring a network since release 18.04

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MyPaint 2.0 Open-Source Drawing and Paining App Adds Major New Features

February 18, 2020, 3:07 am CST

If you’re looking for a no-frills drawing and painting application that works great with Wacom-like graphics tablets, MyPaint 2.0 is now available for download and it’s a massive update.

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Five best code editors for Linux

February 18, 2020, 1:53 am CST

Coding is an essential part in the life of developers. Building good applications or web pages requires a good and reliable code editor or IDE. More and more developers are choosing Linux over other operating systems for the purpose of coding applications these days

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How to install spark on RHEL 8

February 17, 2020, 11:24 pm CST

Apache Spark is a distributed computing system. It consists of a master and one or more slaves, where the master distributes the work among the slaves, thus giving the ability to use our many computers to work on one task. One could guess that this is indeed a powerful tool where tasks need large computations to complete, but can be split into smaller chunks of steps that can be pushed to the slaves to work on. Once our cluster is up and running, we can write programs to run on it in Python, Java, and Scala.

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Linux Candy: xcowsay – displays a cow on your desktop with message

February 17, 2020, 10:10 pm CST

For this article, we’re looking at a different take on cowsay. It goes by the name xcowsay. This program displays a cute graphical cow and speech bubble. The program was first started over 12 years ago, but it’s still under active development, with a new release published only last week.

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Q4OS 4.0 “Gemini” Enters Development Based on Debian GNU/Linux 11 “Bullseye”

February 17, 2020, 6:27 pm CST

The Q4OS team has kicked off the development of the next major release of their Debian-based distribution, Q4OS 4.0, and announced the availability of the first pre-release version for public testing.

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Autostart Tmux Session On Remote Linux System When Logging In Via SSH

February 17, 2020, 5:12 pm CST

This brief tutorial explains how to autostart Tmux session on a remote Linux system when logging in via SSH from your local system.

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How to Install and Configure OpenLiteSpeed Server on Fedora 31 along with MariaDB

February 17, 2020, 2:44 pm CST

OpenLiteSpeed is a lightweight and open-source version of the LiteSpeed Server developed by LiteSpeed Technologies. It supports Apache Rewrite rules, HTTP/2 and HTTP/3 along with TLS v1.3 and QUIC protocols. It comes with a WebGUI based Administration panel which makes it different from other servers and easier to manage.

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How to use Eye of Gnome Image Viewer in Debian 10

February 17, 2020, 1:29 pm CST

In this article, we will explain how to install EOG on Debian through the Debian command line. We will also explain how you can use it to view images in Debian and also how you can set it as a default application for opening/viewing photos.

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