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today's howtos

Submitted by Roy Schestowitz on Thursday 15th of April 2021 07:28:54 PM
  • How To Cast YouTube Videos From Your Phone To Raspberry Pi Using YouTube On TV (youtube.com/tv) - Linux Uprising Blog

    This article explains how to use YouTube on TV (https://youtube.com/tv) on a Raspberry Pi, and control it using the YouTube app from your mobile device, almost as if you're using a Chromecast.

    Once you set up everything, you'll be able to use the cast button from the YouTube app on your phone to connect to YouTube on TV running on your Raspberry Pi (using Chromium web browser in kiosk mode), and use your phone as a YouTube remote. You'll be able to play videos, add videos to queue, change the volume using the phone's volume keys, etc. Also, multiple phones (so multiple users) can connect, play and add videos to the queue at the same time.

    Note that I've only tested this using Android phones, so I'm not sure if it also works with iOS. I guess it should, but I don't own any iOS devices.

  • How To Display Linux Commands Cheatsheets Using Eg

    Learning Linux commands are getting easier day by day! If you know how to use man pages properly, you are halfway across Linux commandline journey. There are also some good man page alternatives available which helps you to display Linux commands cheatsheets. Unlike the man pages, these tools will only display concise examples for most commands and exclude all other theoretical part. Today, let us discuss one more useful addition to this list. Say hello to eg, a command line cheatsheet tool to display useful examples for Linux commands.

    Eg provides practical examples for many Linux and Unix commands. If you want to quickly find out examples of a specific Linux command without going through the lengthy man pages, eg is your companion. Just run eg followed by the name of the command and get the concise examples of the given command right at the Terminal window. It is that simple!

  • How To Install Ruby on Rails on Debian 10 - idroot

    In this tutorial, we will show you how to install Ruby on Rails on Debian 10. For those of you who didn’t know, Ruby on Rails (RoR) is a web application framework based on the Ruby programming language. It is a server-side MVC (Model-View-Controller) framework that provides default structures for a database, an internet service, and sites. It allows you to use Ruby in combination with HTML, CSS, and similar programming languages.

    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 through the step-by-step installation of Ruby on Rails on a Debian 10 (Buster).

  • How to Test Website Loading Speed in Linux

    The website loading speed or response time is very important for any webmaster because it will impact search engine rankings and user experience. So if you are a system administrator or webmaster then it is important for you to test your website speed and take immediate action to speed up it. There are several web-based and command-line tools available to test your website speed.

  • Russell Coker: Basics of Linux Kernel Debugging

    Firstly a disclaimer, I’m not an expert on this and I’m not trying to instruct anyone who is aiming to become an expert. The aim of this blog post is to help someone who has a single kernel issue they want to debug as part of doing something that’s mostly not kernel coding. I welcome comments about the second step to kernel debugging for the benefit of people who need more than this (which might include me next week). Also suggestions for people who can’t use a kvm/qemu debugger would be good.

    Below is a command to run qemu with GDB. It should be run from the Linux kernel source directory. You can add other qemu options for a blog device and virtual networking if necessary, but the bug I encountered gave an oops from the initrd so I didn’t need to go further. The “nokaslr” is to avoid address space randomisation which deliberately makes debugging tasks harder (from a certain perspective debugging a kernel and compromising a kernel are fairly similar). Loading the bzImage is fine, gdb can map that to the different file it looks at later on.

  • A beginner's guide to load balancing | Opensource.com

    When the personal computer was young, a household was likely to have one (or fewer) computers in it. Children played games on it during the day, and parents did accounting or programming or roamed through a BBS in the evening. Imagine a one-computer household today, though, and you can predict the conflict it would create. Everyone would want to use the computer at the same time, and there wouldn't be enough keyboard and mouse to go around.

    This is, more or less, the same scenario that's been happening to the IT industry as computers have become more and more ubiquitous. Demand for services and servers has increased to the point that they could grind to a halt from overuse. Fortunately, we now have the concept of load balancing to help us handle the demand.

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. 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 MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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