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today's howtos

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HowTos
  • Let's Try to Install Raspberry Pi 5.10 on VirtualBox!

    Today we will see how to install Raspberry Pi with VirtualBox. The famous Linux OS comes as an embedded system which usually utilized in projects. For testing and simulation environments having Pi in VirtualBox will be a good idea. As per official documentation, this Debian derivative can be a buildup for Microsoft, Apple OS, and Linux-based environments. For Linux Ubuntu can be customized as a Pi- environment. But, here we are discussing to buildup a dedicated os with the help of Virtual Box. Let’s take a brief on Pi’s features.

  • How to build, run, and manage container images with Podman | FOSS Linux

    Linux Containers have been around for some time but were introduced in the Linux kernel in 2008. Linux containers are lightweight, executable application components that combine app source code with OS libraries and dependencies required to run the code in different environments.

    Developers use containers as an application packaging and delivery technology. One key attribute of containers is combining lightweight application isolation with the flexibility of image-based deployment methods.

    RHEL based systems like CentOS and Fedora Linux implements containers using technologies such as control groups for resource management, namespaces for system process isolation, SELinux for security management. These technologies provide an environment to produce, run, manage and orchestrate containers. In addition to these tools, Red Hat offers command-line tools like podman and buildah for managing container images and pods.

  • How To Install ELK Stack on AlmaLinux 8 - idroot

    In this tutorial, we will show you how to install ELK Stack on AlmaLinux 8. For those of you who didn’t know, The ELK Stack is an acronym for a combination of three widely used open-source projects: E=Elasticsearch, L=Logstash, and K=Kibana. With the addition of Beats, the ELK Stack is now known as the Elastic Stack. the ELK platform allows you to consolidate, process, monitor, and perform analytics on data generated from multiple sources in a way that is fast, scalable, and reliable.

    This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of the ELK Stack on an AlmaLinux 8. You can follow the same instructions for Rocky Linux.

  • Install Minikube On Ubuntu 22.04 / 20.04 LTS | Tips On UNIX

    minikube is an open-source tool, also a local Kubernetes focusing on making it easy to learn and develop for Kubernetes.

    This tutorial will be helpful for beginners to install minikube on Ubuntu 20.04 LTS, Ubuntu 22.04.

  • How to know which Linux Kernel Version is installed in my System - TREND OCEANS

    There are a couple of reasons why you should know your Linux kernel version, It could be a handful when you want to install the Linux header, and even it’s a pretty common error for the VMware Workstation to fail in case of a missing Linux header.

    In this article, you will see how to check the kernel version, alongside you will see the steps to install Linux header on your system.

  • How to create and run a shell script in Linux and Ubuntu - Coffee Talk: Java, News, Stories and Opinions

    It’s pretty easy to run a batch file on windows.

    Just just create a file, change the extension to .bat, and either call the script in PowerShell or double click to execute it. Windows users are spoiled.

    If you want to create a script and run it in Ubuntu, a few extra steps are involved.

  • Install Puppet Server & Agent on Rocky Linux or AlmaLinux 8 - Linux Shout

    In this tutorial, we will learn the steps to install Puppet Server on AlmaLinux or Rocky Linux 8 distros using the command terminal.

    Puppet is an open-source project with enterprise support, it allows admins to automate the configuration of a single server or computer to a large network of systems; Ansible and Foreman are a few of its alternatives.

    When developers and administrators have to configure multiple servers at a time with similar configurations then instead of repeating the same tasks on each system one by one they use special configuration managers such as Puppet. Ideally, many tasks can be automated with it using Puppet’s Domain-Specific Language (DSL) — Puppet code — which you can use with a wide array of devices and operating systems. It was developed in 2005 by Puppet Labs, Portland, Oregon; written in Ruby and designed to be cross-platform. Any login term enterprise operating system can be used to host Puppet servers such as OracleLinux, RedHat, SuSE, Ubuntu, Debian AlmaLinux, and Rocky Linux. Systems running Windows can also be configured and managed with Puppet, with some limitations.

  • How to Use GitLab’s Built-In Sentry Error Tracking Service – CloudSavvy IT

    Sentry is a popular error-tracking platform that gives you real-time visibility into issues in your production environments. GitLab’s Error Reporting feature lets you bring Sentry reports into your source control platform, offering a centralized view that unifies Sentry errors and GitLab issues.

    The feature originally relied on an integration with an existing Sentry service, either the official Sentry.io or your own self-hosted server. This changed with GitLab 14.4 which added a lightweight Sentry-compatible backend to GitLab itself. You no longer need an actual Sentry installation to get error reports into GitLab.

    Here’s how to get started with the integrated Sentry backend. Before we proceed, it’s worth mentioning that this capability might not be right for you if you’re already acquainted with the Sentry dashboard. GitLab’s backend is a barebones solution which surfaces errors as a simple list. It’s best for smaller applications where you don’t want the overhead of managing a separate Sentry project.

  • Learn to Install Android Studio Step by Step on Ubuntu

    Android Studio is Android’s official development environment. The tool is designed specifically for Android devices to help you build the highest quality apps. Android applications are built on a setup developed by Google, which is known to all Android users. The IDE replaced the Eclipse tool, which was primarily used for Android development. AS IDE has been used to develop some of the most well-known Android applications.

More in Tux Machines

Arduino Projects: Sun and Power Trackers

  • This sun tracker uses an Arduino to increase solar panel efficiency | Arduino Blog

    With the rapid pace of solar panel installations over the course of the previous decade, there has been an ongoing challenge of trying to improve their efficiency. Apart from the typical silicon crystal photovoltaic cells, there are also more efficient/expensive cells known as concentration photovoltaics (CPV), which rely on a set of mirrors to focus sunlight into a small multijunction cell. Although this technology reduces the size and material requirements, it also requires precise sun tracking for peak performance. Ruediger Loechenhoff has been able to create a far cheaper solar tracker controller, which relies on an Arduino Uno to drive a set of two motors that position the panel. To achieve this, the Uno was connected to a 9-axis MPU-9250 compass module for internal positioning, a DS3231 real-time clock for accurate timing, and a DIY shading beam sunlight sensor to detect optimal angles. Operating the tracker is also quite simple since the firmware only requires an occasional calibration step after a set number of days.

  • This Arduino device can anticipate power outages with tinyML | Arduino Blog

    Our reliance on electronic devices and appliances has never been higher, so when the power goes out, it can quickly become an unpleasant and inconvenient situation, especially for those who are unable to prepare in time. To help combat this problem, Roni Bandini has devised a device he calls “EdenOff,” which is placed inside an electrical outlet and utilizes machine learning at the edge to intelligently predict when an outage might occur. Developed with the use of Edge Impulse, Bandini began by creating a realistic dataset that consisted of three columns that pertain to different aspects of an outlet: its voltage, the ambient temperature, and how long the service has been working correctly. After training a model based on one dataset for regular service and the other for a failure, his model achieved an excellent F-1 score of .96, indicating that the model can forecast when an outage might take place with a high degree of accuracy.

LibreOffice and More

  • LibreOffice at the Univention Summit 2022

    After two years of pandemic restrictions, more and more in-person events are now taking place. Members of the LibreOffice community attended the recent Univention Summit 2022 in Bremen, northern Germany. They had a stand with LibreOffice merchandise, talked to visitors and answered questions.

  • May 2022, Month of LibreOffice Awards

    In May 2022, LibreOffice has received two Awards: SourceForge’s Open Source Project of the Month, and Software Informer’s Editor’s Pick.

  • Do While – Loop Example in Python | Mark Ai Code

    Loops are an important and widely utilized element in all current programming languages. A loop is the finest solution for automating a certain repeated operation or preventing yourself from writing repetitive code in your projects. Loops are sequences of instructions that are executed repeatedly until a condition is fulfilled. Let’s take a closer look at how Python loops function.

Proprietary Software and Microsoft Proxies

  • Patch now: Zoom chat messages can infect PCs, Macs, phones with malware

    Zoom has fixed a security flaw in its video-conferencing software that a miscreant could exploit with chat messages to potentially execute malicious code on a victim's device. The bug, tracked as CVE-2022-22787, received a CVSS severity score of 5.9 out of 10, making it a medium-severity vulnerability. It affects Zoom Client for Meetings running on Android, iOS, Linux, macOS and Windows systems before version 5.10.0, and users should download the latest version of the software to protect against this arbitrary remote-code-execution vulnerability. The upshot is that someone who can send you chat messages could cause your vulnerable Zoom client app to install malicious code, such as malware and spyware, from an arbitrary server. Exploiting this is a bit involved, so crooks may not jump on it, but you should still update your app.

  • SAP attracts further criticism for Russia presence, despite promise to leave

    A Ukrainian minister has accused software giant SAP of continuing to operate in Russia despite the German vendor previously vowing to withdraw from the aggressor nation. In the months following Russia's invasion of Ukraine, SAP attracted criticism as it continued to support installations of its software in Russia and cloud services used by Russian businesses, including state-owned bank Sberbank.

  • OpenLogic by Perforce: Why we support OSI [Ed: OSI boasts about being controlled by Microsofters]
  • OpenLogic by Perforce Announces Sponsorship of Rocky Enterprise Software Foundation [Ed: Microsoft proxy lays its hands on Rocky after it ran away from Microsoft]

Videos: Steam Deck, LinuxFX, Brave Beta on Debian 11, and Destination Linux 279