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today's howtos

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HowTos
  • How to Upgrade from Ubuntu 20.04 LTS to Ubuntu 22.04 LTS

    In this tutorial, we will walk you through the process of upgrading Ubuntu 20.04 to Ubuntu 22.04.

  • How to Change Mac Address in Linux - HackerNet

    MAC address is a unique address that is used to identify the device over the network. When we change the mac address it will help for anonymity over the network.

    It also helps to bypass the MAC filter in the network by using another device’s mac address.

  • How To Install Robo 3T on Ubuntu 22.04 LTS Jammy Linux - Linux Shout

    Tutorial to install Robot 3T or Studio 3T free on Ubuntu 22.04 LTS Jammy JellyFish using the command line to get a Graphical user interfaces for managing your Mongo DB server instance.

    Robo 3T offer MongoDB a GUI interface tool that is maintained and provided by the developers of MongoDB client Studio 3T (paid one with 30 days trial). Formerly, Robo 3T is known as Robomongo, and now Studio 3T Free. It is also a cross-platform MongoDB GUI management tool available for Windows, macOS, and Linux. On one hand, the Studio 3T is a paid tool, whereas the Studio 3T Free is a free version with users can build queries using drag and drop functionality, generate driver code in seven languages, break down aggregation queries, plus more.

  • 8 Ways to Secure SSH Server Connections on Linux

    SSH is a widely-used protocol used for accessing Linux servers securely. Most users use SSH connections with default settings to connect to a remote server. However, the unsecured default configurations also pose various security risks.

    The root account of a server with open SSH access may be at risk. And especially if you are using a public IP address, it is much easier to hack the root password. Therefore, it is necessary to have knowledge about SSH security.

    Here's how you can secure your SSH server connections on Linux.

  • Install Wine 7.12 On Ubuntu 22.04 & Linux Mint | Tips On UNIX

    This tutorial will be helpful for beginners to install wine 7.12 on Ubuntu 22.04 LTS, Ubuntu 20.04, and Linux Mint 20.3.

  • Getting started with WiFi on Raspberry Pi Pico W board - CNX Software

    Raspberry Pi Trading announced the Raspberry Pi Pico W board basically based on the same design as the original Raspberry Pi Pico board with RP2040 dual-core Cortex-M0+ microcontroller but adding a wireless module with WiFi 4 and Bluetooth LE 5.2, although the latter is not enabled on the board at this time.

    The company sent me a sample for review/evaluation, and I’ll focus on the WiFi part since the Raspberry Pi Pico W supports the same MicroPython and C/C++ SDKs as for the Raspberry Pi Pico board plus additional APIs for wireless connectivity.

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