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today's howtos

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HowTos
  • Persistent Live USB vs. Full Linux install on a USB drive | FOSS Linux

    Live USB is a fascinating way of testing out any Linux distro without modifying or making changes to your computer. Unknown to many, there is data persistency mode in the Live session. So you can make some changes and save the file to your Universal Serial Bus (USB) drive. The data will remain still even after powering off the live session.

    You can run a test drive on installing the distro to your USB drive after testing out the live session instead of the internal hard drive. Accordingly, there are two more test-driving a Linux distro – Persistent Live USB drive and Full distro install USB drive.

    The two methods will still allow you to boot Linux from a USB drive and save your data. Some may be thinking about the differences between the two methods and which one you should opt for.

  • How To Install Franz Messaging on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Franz Messaging on Ubuntu 20.04 LTS. For those of you who didn’t know, Franz is a third-party powerful application that allows users to access various social media accounts. This app supports 14 messaging apps such as WhatsApp, Slack, Facebook Messenger, WeChat, Telegram, Google Hangouts, Skype, Discord, and Skype are currently supported with more to follow soon. Franz is available for Linux, macOS, and Windows.

    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 Franz Messaging on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

  • How to chat in Twitch streams on the Linux desktop with Chatterino

    Before we can go over how to use Chatterino to chat with your favorite Twitch streamers on the Linux desktop, you’ll need to install it on your computer. To start the installation, open up a terminal window on the Linux desktop.

    You can open up a terminal window on the Linux desktop by pressing Ctrl + Alt + T on the keyboard. Or, search for “Terminal” in the app menu. When the terminal window is open and ready to use, follow the installation instructions below that corresponds with the Linux OS you use to get Chatterino up and running.

  • How to Transfer Files Between Linux, Android, and iOS Using qrcp

    File-sharing apps make it easier to transfer files between mobile devices and computers. But while these apps generally work well, they tend to cause compatibility issues with certain platforms owing to their limitations.

    This is where qrcp comes in. Qrcp is a file transfer utility that works via the terminal and relies on Wi-Fi to carry out file transfer. As a result, you can use it to share files between any computer and mobile phone, irrespective of their operating systems.

    Here's a guide detailing qrcp and the steps to use it for transferring files between your Linux computer and a mobile device.

  • How to Set Date and Time on Rocky Linux 8 Desktop and Server

    Here are the two ways to set a date and time on Rocky Linux 8 or AlmaLinux using the command terminal and graphical user interface.

    There are many processes on the Linux operating system that requires the correct system date and time. Also, to update the system properly and other processes like cronjobs we must need the up-to-date time & date. However, Linux or any other OS automatically syncs the system time from the server, in case not or you want to change the timezone manually then let’s explore how to do that.

  • How to install Devuan - Unixcop

    Let’s see how to install Devuan, a Debian GNU/Linux fork free of systemd as is main feature. This is the first article of a series of two on installing Devuan

  • Configure Gitlab to use Gmail SMTP for Outbound Mails - kifarunix.com

    This tutorial will describe how to configure Gitlab to use Gmail SMTP for Outbound mails. In our previous tutorials, we learnt how to install and setup Gitlab CE.

  • Deploying and Running BCC in Your Kubernetes Cluster

    In 2021, extended Berkeley Packet Filter (eBPF) is becoming an increasingly popular tool for DevOps professionals and backend engineers alike—and rightly so. Using eBPF you can deliver features and experiences instantaneously by instrumenting directly from the kernel. And fortunately, kernel versions are at a great place making it easier for engineers to deliver these solutions to the masses.

More in Tux Machines

Audiocasts/Shows: Late Night Linux, Destination Linux, and More

Kernel: Slowdown, CephFS, and FS-Cache / CacheFiles

  • How a performance boost in Linux kernel for one family of Intel chips slowed its latest Alder Lake processors

    The mixture of performance and efficiency CPUs in Intel’s 12th-gen Core processors, code-named Alder Lake, hasn’t just been causing problems for some Windows gamers – it almost led to complications for Linux. Phoronix’s Michael Larabel noticed a performance hit in the kernel a fortnight ago – in a work-in-progress release candidate, we should stress – and a fix for the scheduling code landed a little later. It turned out the kernel suffered on Alder Lake chips due to a performance-enhancing tweak for another Intel processor family: the multiple-Atom-core-based Jacobsville. This year, Intel officially canned its Lakefield chips. These consisted of a performance core called Sunny Cove as well as Atom-class efficiency cores dubbed Tremont. Crucially, there are still multi-Tremont-core embedded processors out there, such as Snow Ridge. These are server and infrastructure-oriented components with up to 24 cores. The first proposed cut of kernel 5.16, specifically 5.16-rc1, contained a revision to the scheduler that makes it aware that some clusters of cores share a block of L2 cache – as seen in Snow Ridge and Jacobsville.

  • Testing the Linux Kernel CephFS Client with xfstests

    I do a lot of testing with the kernel cephfs client these days, and have had a number of people ask about how I test it. For now, I’ll gloss over the cluster setup since there are other tutorials for that.

  • Major Rewrite Of Linux's FS-Cache / CacheFiles So It's Smaller & Simpler - Phoronix

    As part of David Howells of Red Hat long-term work on improving the caching code used by network file-systems, he today posted a big patch series rewriting the fscache and cachefiles code as the latest significant step on that adventure. Howells posted a set of 64 patches for rewriting the kernel's fscache and cachefiles code. Linux's fsache is a general purpose cache used by network file-systems while cachefiles is for providing a caching back-end for mounted local file-systems. The Red Hat engineer has been working on this rewrite for more than the past year.

Ubuntu Weekly Newsletter and Ubuntu Desktop on Google Clown

  • Ubuntu Weekly Newsletter Issue 711

    Welcome to the Ubuntu Weekly Newsletter, Issue 711 for the week of November 21 – 27, 2021. The full version of this issue is available here.

  • Launch Ubuntu Desktop on Google Cloud

    This tutorial shows you how to set up a Ubuntu Desktop on Google Cloud. If you need a graphic interface to your virtual desktop on the cloud, this tutorial will teach you how to set up a desktop environment just like what you can get on your own computer.

Open Hardware/Modding: ESP32, 3-D Printing, Raspberry Pi Pico, PocketBeagle

  • Wireless thermal printer kit features M5Stack ATOM Lite controller - CNX Software

    This is certainly not the first ESP32 thermal printer solution, as there are various implementations including bitbank2 thermal printer Arduino connecting ESP32 and nRF52 boards to the printer over Bluetotoh LE, or a Arduino sketches to print bitmaps over serial or MQTT.

  • Generate Fully Parametric, 3D-Printable Speaker Enclosures | Hackaday

    Having the right speaker enclosure can make a big difference to sound quality, so it’s no surprise that customizable ones are a common project for those who treat sound seriously. In that vein, [zx82net]’s Universal Speaker Box aims to give one everything they need to craft the perfect enclosure.

  • Z80 Video Output Via The Raspberry Pi Pico | Hackaday

    Building basic computers from the ground up is a popular pastime in the hacker community. [Kevin] is one such enthusiast, and decided to whip up a video interface for his retro Z80 machine.

  • The Calculator Charm: Calculatorium Leviosa! | Hackaday

    Have you ever tried waving your hand around like a magic wand and summoning a calculator? We would guess not since you’d probably look a little silly doing so. That is unless you had [Andrei’s] cool gesture-controlled calculator. [Andrei] thought it would be helpful to use a calculator in his research lab without having to take his gloves off and the results are pretty cool. His hardware consists of a PocketBeagle, an OLED, and an MPU6050 inertial measurement unit for capturing his hand motions using an accelerometer and gyroscope. The hardware is pretty straightforward, so the beauty of this project lies in its machine learning implementation.