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Tux Machines


today's howtos


Posted by Roy Schestowitz on Oct 22, 2022,

updated Oct 22, 2022


Security Leftovers

EasyOS version 4.4.3 released



Learn how to bootstrap Kubernetes clusters with kubeadm


↺ Learn how to bootstrap Kubernetes clusters with kubeadm


> In this guide, learn to create, configure and run a Kubernetes cluster from scratch with kubeadm, a command-line tool that simplifies and automates cluster setup and management.



How to install and configure Squid Proxy on Alma/Rocky Linux 9


↺ How to install and configure Squid Proxy on Alma/Rocky Linux 9


> In this guide we will learn how to install and configure Squid Proxy server on a Rocky Linux 9 server. This guide also works on other RHEL 9 based distros like Alma Linux and Oracle Linux. Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more.



How to Zip and Unzip Files in Ubuntu 22.04 LTS Linux


↺ How to Zip and Unzip Files in Ubuntu 22.04 LTS Linux


> Learn the commands to install Zip and Unzip in Ubuntu 22.04 LTS Jammy JellyFish to extract the compressed files and folders archived in a ZIP format.


> This tutorial will help the users to learn the command to ZIP and unzip in Ubuntu Terminal. Zip is a command Archive format that can be used on almost all operating systems to use, especially on Windows. However, all Linux distros don’t have a tool to extract the Zip format files by default, for example, Ubuntu (especially the minimal installation). In such as case we manually have to install a command line tool to extract our files.



How to Install Jupyter on Ubuntu 20.04 LTS Linux - Linux Shout


↺ How to Install Jupyter on Ubuntu 20.04 LTS Linux - Linux Shout


> Tutorial to learn the steps involve in the installation of Jupyter Notebook on Ubuntu 20.04 Focal Fossa using the command Terminal.


> What is Jupyter Notebook?


> The Jupyter Project is a non-profit initiative that aims to develop and provide open-source software and open standards for interactive work. One of the most famous products of the project is Jupyter Notebook. It is software for sharing and creating interactive worksheets that work on the client-server principle. In a Jupyter notebook, numbers, text, graphics, and executable program code can be combined and made available to users. Other products include JupyterLab, JupyterHub, and Voilà.



How to Use the wc Command in Linux


↺ How to Use the wc Command in Linux


> Linux provides a vast number of command-line tools to help simplify your everyday tasks. One of these tools is the wc command.


> wc is your go-to command when you need to know the number of words in a file or even how many files exist in a particular directory. But that's not all the wc command does. Read on to discover what the wc command is and how to use it effectively on Linux.



How To Install SELinux on Ubuntu 22.04 LTS - idroot


↺ How To Install SELinux on Ubuntu 22.04 LTS - idroot


> In this tutorial, we will show you how to install SELinux on Ubuntu 22.04 LTS. For those of you who didn’t know, SELinux is not installed by default in Ubuntu. Security Enhanced Linux is primarily used by the Red Hat-based Linux distributions, which include Red Hat Enterprise Linux, CentOS, and Fedora. Security-Enhanced Linux (SELinux) is a security architecture for Linux systems that allows administrators to have more control over who can access the system.


> 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 the step-by-step installation of the SELinux on Ubuntu 22.04 (Jammy Jellyfish). You can follow the same instructions for Ubuntu 22.04 and any other Debian-based distribution like Linux Mint, Elementary OS, Pop!_OS, and more as well.



How To Install Laravel on Rocky Linux 9 - idroot


↺ How To Install Laravel on Rocky Linux 9 - idroot


> In this tutorial, we will show you how to install Laravel on Rocky Linux 9. For those of you who didn’t know, Laravel is a popular open-source PHP framework for developers looking to build modern web applications based on PHP. It provides a meaningful and creative syntax for simplifying common tasks such as authentication, routing, sessions, working with databases, and more.


> 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 the step-by-step installation of Laravel PHP Framework on Rocky Linux. 9.



How to give a user full root privileges


↺ How to give a user full root privileges


> In EasyOS, you run as the administrator, also known as "root", with the ability to run network-facing apps as non-root, or in containers as "crippled root" or user "spot".


> Some apps will object to being run as root, putting up a warning message, or requiring a special commandline parameter, or even refusing to run. They will even do this in a container, as they just check that UID == 0 and are not aware that it is a "cripple root" environment.


> VLC media player is the only app I know of that tries to detect if running in a container and if so will allow to run as root. I say "tries" because it only detects two or three mainstream containers; I recall Docker was one of them. Unfortunately, it does not know about EasyContainers, so aborts -- we have to patch VLC to not abort when run as root.



How to install SQLite on CentOS 9 Stream / Fedora 36


↺ How to install SQLite on CentOS 9 Stream / Fedora 36


> We already know that CentOS 9 Stream / Fedora 36 is a system desired by many developers to do their work. That’s why today you will learn how to install SQLite on CentOS 9 Stream. The process is simple, but it is always good to read a tutorial.



Delete Specific Records from Elasticsearch Index - kifarunix.com


↺ Delete Specific Records from Elasticsearch Index - kifarunix.com


> This is a simple tutorial on how to search and delete specific records from Elasticsearch index.



How to See Battery Time Remaining in GNOME Quick Settings - OMG! Ubuntu!


↺ How to See Battery Time Remaining in GNOME Quick Settings - OMG! Ubuntu!


> Ubuntu doesn’t show your laptop battery percentage by default, but it does give you an option to turn it on via Settings > Power — which is great.


> But what about estimated time remaining?


> On Ubuntu 22.04 LTS (and earlier) this is available to see in the Status Menu. Just open the menu and look at the battery row and, lo, an estimate of how much longer your device will last before it nopes out and needs to be connected to a power source.


> In Ubuntu 22.10 that estimate is gone. The old masonry Status Menu is replaced by the new, pod-style Quick Settings menu, which shows battery percentage by default. To get an idea of figure of precisely how much longer your battery is going to chug along you now have to open Settings > Power.


> Now, I must stress: Quick Settings isn’t feature complete yet. GNOME devs are going to refine the form and functionality of it over the next few GNOME releases, adding new features and further finessing the design.


> In the mean time, if you want to see remaining battery time in GNOME 43’s Quick Settings menu instead of a battery percentage, there’s a third-party GNOME extension that (re)enables it.



How to flash SD card images on a Chromebook


↺ How to flash SD card images on a Chromebook


> If you’re a Chromebook user and need to flash an operating system image to an SD card, you’re in luck. As it turns out, you can use the Chrome OS recovery tool to flash custom operating system images.


> This guide will show you how to use the official Chrome OS recovery tool to flash custom OS images to SD cards. Ensure you have an SD card reader and a compatible SD card to use with Chrome OS.




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