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today's howtos

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  • How to find the IP address of your Raspberry PI - PragmaticLinux

    Planning on running your Raspberry PI as a server on your local network? Excellent idea. They’re cheap, powerful and require little power. The perfect solution for a basic file-, web- or game-server. In order to access the Raspberry PI server from another device on your local network, you need to know its IP address. This article presents several methods on how to find the IP address of your Raspberry PI.

  • How to install Gacha Club Edition Update on a Chromebook

    Today we are looking at how to install Gacha Club Edition Update on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

  • How to Check If a File Exists in Linux Bash Scripts

    If a Linux Bash script relies on certain files or directories being present, it can’t just assume they do. It needs to check that they’re definitely present. Here’s how to do that.

  • How to convert images using the Linux terminal

    In this post, you will learn how to convert images using the Linux terminal. This post, which can help us in scripts and many external programs.

  • Fixing “Command Not Found” Error When Using Sudo

    It is a right of passage for almost all Linux users to go through the headaches associated with the error “command not found” whenever you try to execute a script or a file on your Linux terminal as a sudoer user.

    This error directly implies that the script or file you are trying to execute either does not exist on your system or the PATH variable is unaware of its unspecified location.

    This article guide will walk us through diagnosing and fixing this “command not found” sudo-associated error.

  • How to Install MongoDB 6.0 on Debian 11 | Mark Ai Code

    We will use the official repository to install MongoDB 6.0 server and client on Debian 11 in order to handle local or distant databases using a command prompt.

  • How to Install MySQL 8.0 on Ubuntu 20.04 LTS

    MySQL is a free, open-source database management system based on SQL or Structured Query Language. It is one of the most widely used database systems for several well-known applications. MySQL is used for data warehousing, e-commerce, and logging applications, and its most notable feature is web-based database storage and management. The ease of use and flexibility of MySQL has made it a popular choice for many web applications. One of the key benefits of MySQL is that it runs on multiple platforms, including Windows, Linux, and macOS. This allows developers to create cross-platform applications deployed on various devices. Another benefit of MySQL is that it supports multiple programming languages, making it easy to integrate into existing applications. Lastly, MySQL is highly scalable, which means it can handle large volumes of data without sacrificing performance. This makes it an ideal choice for businesses looking to manage growing amounts of data.

    In the latest release of MySQL 8.0, the database management system brings new features and security updates. This new release of MySQL adds support for joins with larger data sets, better performance when importing large files, and various improvements to InnoDB, SQL mode, named ‘strict sql_mode,’ which will make MySQL more compliant with the SQL standard. In addition, there are performance enhancements in this release that include an adaptive query cache, a thread pool for connections, and a faster startup time. Finally, there are multiple security fixes included in this release. Overall, this new release of MySQL provides significant improvements and enhancements that will benefit developers and database administrators alike.

    The following tutorial will teach you how to install MySQL Community on Ubuntu 20.04 LTS Focal Fossa using the MySQL official APT repository, which will give you the latest version available on your system using the command line terminal.

  • How to Install Apache (HTTPD) on Rocky Linux 9

    Apache, also known as Apache HTTP server, has been one of the most widely used web server applications globally for the past few decades. It is a free, open-source web application software maintained by the Apache Software Foundation. Apache provides some powerful features with dynamically loadable modules, easy integration with other software, and handling of static files, among other popular features. The main reason for its popularity is that it is highly customizable to meet the needs of different users, making it an ideal choice for small and large businesses. Additionally, Apache is constantly updated with new features and security enhancements, making it a reliable and secure option for hosting websites. While many web server options are available today, Apache remains one of the most popular choices thanks to its flexibility, ease of use, and wide range of features.

    In the following tutorial, you will learn how to install Apache on Rocky Linux 9 using the command line terminal for desktop or server and basic configuration and creating a TLS/SSL certificate with Let’s Encrypt.

  • How to install Monit 5 on Ubuntu 22.04 – NextGenTips

    Monit is a small open source utility for monitoring and managing Unix systems. It performs automatic maintenance whenever there is downtime in your system. From this tutorial, you are going to learn how to install Monit on Ubuntu 22.04.

  • How to integrate Active Directory Federation Services (ADFS) authentication with Red Hat SSO using SAML | Enable Sysadmin [Ed: Red Hat parroting Microsoft talking points]

    Most businesses use Active Directory (AD) as it offers a single source of user management in the organization. Many organizations often incorporate additional authentication programs and protocols, such as Red Hat Single Sign On (RH-SSO), in tandem with AD. RH-SSO is based on Keycloak, an open source identity and access management tool for modern web applications.

More in Tux Machines

today's howtos

  • How to Change Comment Color in Vim – Fix Unreadable Blue Color

    Are you annoyed about the comment color in vim? The dark blue color of the comment is often hard to read. In this tutorial, we learn how to change the comment color in Vim. There are few methods we can use to look vim comment very readable.

  • How to Add Repository to Debian

    APT checks the health of all the packages, and dependencies of the package before installing it. APT fetches packages from one or more repositories. A repository (package source) is basically a network server. The term "package" refers to an individual file with a .deb extension that contains either all or part of an application. The normal installation comes with default repositories configured, but these contain only a few packages out of an ocean of free software available. In this tutorial, we learn how to add the package repository to Debian.

  • Making a Video of a Single Window

    I recently wanted to send someone a video of a program doing some interesting things in a single X11 window. Recording the whole desktop is easy (some readers may remember my post on Aeschylus which does just that) but it will include irrelevant (and possibly unwanted) parts of the screen, leading to unnecessarily large files. I couldn't immediately find a tool which did what I wanted on OpenBSD [1] but through a combination of xwininfo, FFmpeg, and hk I was able to put together exactly what I needed in short order. Even better, I was able to easily post-process the video to shrink its file size, speed it up, and contort it to the dimension requirements of various platforms. Here's a video straight out of the little script I put together: [...]

  • Things You Can And Can’t Do

    And it got me thinking about what you can and can’t do — what you do and don’t have control over.

  • allow-new-zones in BIND 9.16 on CentOS 8 Stream under SELinux

    We run these training systems with SELinux enabled (I wouldn’t, but my colleague likes it :-), and that’s the reason I aborted the lab: I couldn’t tell students how to solve the cause other than by disabling SELinux entirely, but there wasn’t enough time for that.

  • Will the IndieWeb Ever Become Mainstream?

    This is an interesting question, thanks for asking it, Jeremy. I do have some history with the IndieWeb, and some opinions, so let’s dive in.

    The short answer to the question is a resounding no, and it all boils down to the fact that the IndieWeb is really complicated to implement, so it will only ever appeal to developers.

  • How to Install CUPS Print Server on Ubuntu 22.04

    If your business has multiple personal computers in the network which need to print, then we need a device called a print server. Print server act intermediate between PC and printers which accept print jobs from PC and send them to respective printers. CUPS is the primary mechanism in the Unix-like operating system for printing and print services. It can allow a computer to act as a Print server. In this tutorial, we learn how to set up CUPS print server on Ubuntu 22.04.

Open Hardware: XON/XOFF and Raspberry Pi Pico

  • From XON/XOFF to Forward Incremental Search

    In the olden days of computing, software flow control with control codes XON and XOFF was a necessary feature that dumb terminals needed to support. When a terminal received more data than it could display, there needed to be a way for the terminal to tell the remote host to pause sending more data. The control code 19 was chosen for this. The control code 17 was chosen to tell the remote host to resume transmission of data.

  • Raspberry Pi Pico Used in Plug and Play System Monitor | Tom's Hardware

    Dmytro Panin is at it again, creating a teeny system monitor for his MacBook from scratch with help from our favorite microcontroller, the Raspberry Pi Pico. This plug-and-play system monitor (opens in new tab) lets him keep a close eye on resource usage without having to close any windows or launch any third-party programs. The device is Pico-powered and plugs right into the MacBook to function. It has a display screen that showcases a custom GUI featuring four bar graphs that update in real-time to show the performance of different components, including the CPU, GPU, memory, and SSD usage. It makes it possible to see how hard your PC is running at a glance.

Security Leftovers

How to Apply Accent Colour in Ubuntu Desktop

A step-by-step tutorial on how to apply accent colour in Ubuntu desktop (GNOME) with tips for Kubuntu and others. Read more