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Fedora 34 Feature Focus: Updated Activities Overview

Fedora Workstation 34 is scheduled for release towards the end of April. Among the various changes that it will contain is the soon-to-be-released GNOME 40. This comes with a number of improvements and new features, most notably an updated Activities Overview design. Read on to hear the background behind those changes, and what to expect […]

How to Install Suricata and Zeek IDS with ELK on Ubuntu 20.10

  • Howtoforge Linux Howtos und Tutorials (Posted by bob on Mar 16, 2021 8:55 AM CST)
  • Groups: Ubuntu, Linux; Story Type: News Story
In this tutorial we will install and configure Suricata, Zeek, the ELK stack, and some optional tools on an Ubuntu 20.10 (Groovy Gorilla) server along with the Elasticsearch Logstash Kibana (ELK) stack.

6 things to know about using WebAssembly on Firefox

  • Opensource.com; By Stephan Avenwedde (Posted by bob on Mar 16, 2021 7:41 AM CST)
  • Story Type: Tutorial; Groups: Mozilla
WebAssembly is a portable execution format that has drawn a lot of interest due to its ability to execute applications in the browser at near-native speed. By its nature, WebAssembly has some special properties and limitations. However, by combining it with other technologies, completely new possibilities arise, especially related to gaming in the browser. This article describes the concepts, possibilities, and limitations of running WebAssembly on Firefox.

Old Linux storage bugs, new security patches

  • ZDNet | open-source RSS; By Steven J. Vaughan-Nichols (Posted by bob on Mar 16, 2021 1:29 AM CST)
  • Story Type: Editorial; Groups: Linux
You may not have used SCSI this decade, but the old storage interface software is still in Linux and security holes have been found, and fixed, within it.

Learn how file input and output works in C

  • Opensource.com (Posted by bob on Mar 15, 2021 11:00 PM CST)
  • Story Type: News Story
If you want to learn input and output in C, start by looking at the stdio.h include file. As you might guess from the name, that file defines all the standard ("std") input and output ("io") functions. The first stdio.h function that most people learn is the printf function to print formatted output. Or the puts function to print a simple string. Those are great functions to print information to the user, but if you want to do more than that, you'll need to explore other functions. read more

GitOps vs. DevOps: What's the difference?

  • Opensource.com (Posted by bob on Mar 15, 2021 7:17 PM CST)
  • Story Type: News Story
If you work with technology, you are probably familiar with DevOps. Although DevOps is quite hard to describe in a few words, these Opensource.com articles can give you more information: read more

How to store AWS user access key and secret key in Jenkins

  • Howtoforge Linux Howtos und Tutorials (Posted by bob on Mar 15, 2021 6:03 PM CST)
  • Groups: Linux; Story Type: News Story
In this article, we will install the "CloudBees AWS Credentials" plugin and store the AWS IAM user's secret key and access key in Jenkins using this plugin. We will install the "AWS Steps Plugin" so that we could use "awsStep" to inject the credential we created.

12 Raspberry Pi projects to try this year

Remember when the Raspberry Pi was just a really tiny hobbyist Linux computer? Well, to the surprise of no one, the Pi's power and scope has escalated quickly. Have you got a new Raspberry Pi or an old one lying around needing something to do? If so, we have plenty of new project ideas, ranging from home automation to cross-platform coding, and even some new hardware to check out.

Build an open source theremin

Even if you haven't heard of a theremin, you're probably familiar with the eerie electronic sound it makes from watching TV shows and movies like the 1951 science fiction classic The Day the Earth Stood Still. Theremins have also appeared in popular music, although often in the form of a theremin variant.

Learn Python dictionary values with Jupyter

  • Opensource.com (Posted by bob on Mar 14, 2021 6:12 PM CST)
  • Groups: Python; Story Type: News Story
Dictionaries are the Python programming language's way of implementing data structures. A Python dictionary consists of several key-value pairs; each pair maps the key to its associated value. For example, say you're a teacher who wants to match students' names to their grades. You could use a Python dictionary to map the keys (names) to their associated values (grades). If you need to find a specific student's grade on an exam, you can access it from your dictionary. This lookup shortcut should save you time over parsing an entire list to find the student's grade. read more

Collect sensor data with your Raspberry Pi and open source tools

I have lived in 100-plus-year-old brick houses for most of my life. They look nice, they are comfortable, and usually, they are not too expensive. However, humidity is high in the winter in my climate, and mold is a recurring problem. A desktop thermometer that displays relative humidity is useful for measuring it, but it does not provide continuous monitoring. In comes the Raspberry Pi: It is small, inexpensive, and has many sensor options, including temperature and relative humidity. It can collect data around the clock, do some alerting, and forward data for analysis. read more

Pi add-on extends Pi camera range to 20 meters

THine has launched a $59 “Cable Extension Kit for Raspberry Pi Camera” that extends the RPi cameras’ range from 15-20cm to up to 20 meters by using serializer-deserializer technology. Official Raspberry Pi cameras have improved over the years, starting with the 5-megapixel RPi camera v1 from 2013 and advancing to the 8MP RPi Camera v2 […]

Build a router with mobile connectivity using Raspberry Pi

The Raspberry Pi is a small, single-board computer that, despite being the size of a credit card, is capable of doing a lot of things. In reality, this little computer can be almost anything you want to be. You just need to open up your imagination. Raspberry Pi enthusiasts have made many different projects, from simple programs to complex automation projects and solutions like weather stations or even smart-home devices. This article will show how to turn your Raspberry Pi into a router with LTE mobile connectivity using the OpenWRT project. read more

Third time's a harm? Microsoft tries to get twice-rejected compression patent past skeptical examiners

Boffin who invented ANS encoding and made it public domain worries Microsoft will come rent-seeking Analysis In June, 2019, Microsoft applied for a US patent covering enhancements to a data encoding method known as rANS, one of several variants in the Asymmetric Numeral System (ANS) family that form the foundation of data compression schemes used by Apple, Facebook, Google, various other companies, and open source projects.…

Visualize multi-threaded Python programs with an open source tool

  • Opensource.com (Posted by bob on Mar 13, 2021 10:41 PM CST)
  • Groups: Python; Story Type: News Story
Concurrency is an essential part of modern programming, as we have multiple cores and many tasks that need to cooperate. However, it's harder to understand concurrent programs when they are not running sequentially. It's not as easy for engineers to identify bugs and performance issues in these programs as it is in a single-thread, single-task program. read more

My review of the Raspberry Pi 400

The Raspberry Pi 400 promises to be a boon to the homeschool market. In addition to providing an easy-to-assemble workstation that comes loaded with free software, the Pi 400 also serves as a surprisingly effective videoconferencing platform. I ordered a Pi 400 from CanaKit late last year and was eager to explore this capability. Easy setup After unboxing my Pi 400, which came in this lovely package, the setup was quick and easy. read more

How to Install Odoo 14 ERP Software on Ubuntu 20.04

  • Howtoforge Linux Howtos und Tutorials (Posted by bob on Mar 13, 2021 12:41 PM CST)
  • Story Type: Tutorial; Groups: Linux, Ubuntu
Odoo (formerly known as OpenERP) is a self-hosted suite of over 10,000 open source applications suited for a variety of business needs including CRM, eCommerce, accounting, inventory, project management and point of sale.

Ryzen-based AI signage player features Google’s Edge TPU

  • LinuxGizmos.com; By Eric Brown (Posted by bob on Mar 13, 2021 8:56 AM CST)
  • Story Type: News Story; Groups: Embedded
Neousys’ rugged “Nuvo-2700DS” signage player runs on AMD’s Ryzen V1000 with up to 64GB DDR4, 4x DP, 2x GbE, 4x USB, 2x COM, 3x M.2, and dual mini-PCIe for optional Edge TPUs. Neousys has previously spun AMD’s Ryzen Embedded V1000 into an embedded PC (POC-500), an in-vehicle computer (POC-551VTC), and a real-time vision controller (Nuvis-534RT). […]

SUSE prepares for multi-billion Euro IPO

  • ZDNet | open-source RSS; By Steven J. Vaughan-Nichols (Posted by bob on Mar 13, 2021 1:51 AM CST)
  • Story Type: News Story; Groups: Linux, SUSE
The European Linux giant will soon be spun out from EQT in an IPO later this year.

How to Install and Configure Nexus Repository Manager on Ubuntu 20.04

  • Howtoforge Linux Howtos und Tutorials (Posted by bob on Mar 12, 2021 9:28 PM CST)
  • Story Type: Tutorial; Groups: Linux, Ubuntu
Nexus is a repository manages that provides a platform that protects your entire software development lifecycle. It allows you to collect, and manage your dependencies and makes it easier to distribute your software.

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