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today's howtos

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HowTos
  • How to Find Large Files in Linux - Make Tech Easier

    Identifying large files on your PC can help you quickly reclaim some much needed space. For desktop Linux users, hunting down large unnecessary files might be optional. But when it comes to server space, it costs money and you have to pay for that excess space every month. Here’s how you can locate big files in Linux to quickly get rid of them.

  • How to Import GPG Keys on Ubuntu & Debian (without apt-key)

    The latest Debian-based systems have deprecated the use of the apt-key command. This command is used to import the GPG signing keys to systems. This command was working fine till Debian 10 and its derivatives. After the release of Debian 11 (and its derivatives like Ubuntu 22.04), the users start getting a warning message on the screen during the keys import. You will see the warning message “Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8))“. As this is a warning message you can still use the apt-key command but the newer version of Debian and Ubuntu will remove the support of this command.

    So, it will be good to upgrade ourselves and start using the signed-by for maintaining the GPG keys and for the repositories. In this article, we will discuss, how securely import the GPG repository signing keys to the Ubuntu, Debian, Linux Mint and Pop!_OS, etc.

  • How to Restart Network on Ubuntu 22.04

    Whenever a problem occurs with the system, the main solution is to perform a restart or reboot the system. Similarly, if a problem occurs with the network, then its easy treatment is to restart the network. There are many scenarios where you may need to restart the network on Ubuntu like settings of the network were changed or the active network connection not working properly. Restarting the network services is equally important for all Linux systems.

  • How to deploy the Adminer database admin tool on Ubuntu Server 22.04 | TechRepublic

    If you’re a fan of phpMyAdmin, you know how easy that platform makes managing relational databases. But what if you need to manage more than one type of database? Maybe you work with both relational and NoSQL databases. If that’s the case, where do you turn?

    One option is Adminer, which supports MySQL versions 5, 7 and 8, MariaDB, PostgreSQL, SQLite, MS SQL, Oracle, Elasticsearch, MongoDB, SimpleDB via plugin, Firebird via plugin and ClickHouse via plugin.

  • How to Stream Apple Music on Linux Using Cider

    Apple Music is available on most platforms, including Apple's, as well as Windows and Android. However, there's no Apple Music—or even iTunes for that matter—on Linux.

    Ergo, if you're an Apple Music subscriber and use Linux on the PC side of things, you have to resort to using Apple Music's web player to listen to music on your computer.

    But as you may know, the experience is nowhere close to perfect. To fix this, some developers came up with Cider, an open-source Apple Music client for Linux. So let's jump in to explore Cider on Linux.

  • How To Install Android Studio on Linux Mint 21 - idroot

    In this tutorial, we will show you how to install Android Studio on Linux Mint 21. For those of you who didn’t know, Android Studio is a free and open source multi-platform supported and java based developer tool that helps the developer create and develop their android based applications. It provides the options, a graphical user interface (GUI), an app project, importing existing projects, changing the configuration, running the app in debug mode, and much 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 an Android Studio on Linux Mint 21 (Vanessa).

  • How To Install Terminator on Ubuntu 22.04 LTS | Mark Ai Code

    This guide will talk about one of these emulators, Terminator, and how to install it on Ubuntu 22.04 LTS

  • How to Configure Networking on Ubuntu Servers

    Ubuntu ships with some graphical utilities to configure network devices, but there are some topics that server administrators especially need to master—and that includes knowing how to configure network devices from the command line.

    To manage your Ubuntu Server network from the command line, it is important to know concepts such as Ethernet interfaces, IP addressing, bridging, and name resolution. Here's a primer.

  • How to install KDE Plasma Desktop on Fedora Linux - Linux Shout

    Learn the steps to install KDE Plasma 5 Desktop on Fedora 36 workstation desktops and other previous versions such as 35, 34… to get a beautiful alternative to the system’s default GNOME 42 Desktop.

    Fedora plays a not negligible contribution to the Red Hat value chain. It is not meant to generate revenue but instead gives the right direction to the future versions of RHEL. It is an experimental ground for Red Hat. Fedora is allowed to experiment with new technologies, which is why it offers a wide range of packages directly to install using the default system repo. It is more friendly than Redhat and its based distros such as CentOS, Oracle, Rocky, and Almalinux.

  • How to install Linux Mint 21 MATE - Invidious
  • Linux CLI in 60 Seconds - find - Invidious
  • LHB Linux Digest #22.09: Pro Vim Tips, Dash Shell, Unlink, Find-Exec Command
  • Redis ZINTERSTORE
  • Redis ZCOUNT
  • Redis XREAD
  • Redis XINFO
  • Redis XDEL
  • Redis SETNX
  • Redis RPOPLPUSH
  • How to Install NetBox IRM on Debian 11

    NetBox is Infrastructure Resource Modeling (IRM) software designed for network automation. Learn how to install NetBox IRM on Debian 11 here.

  • Troubleshooting Linux SASL Issues | Itsubuntu.com

    Simple Authentication and Security Layer or SASL is a framework for authentication, encryption, and data security used in Internet protocols. John Gardiner Myers wrote the original SASL specification (RFC 2222) in 1997. SASL also provides a data security layer offering data integrity and data confidentiality services.

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