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today's howtos

Submitted by Roy Schestowitz on Friday 4th of February 2022 05:21:10 PM Filed under
HowTos
  • Create And Manage Kubernetes Pods In Linux - OSTechNix

    In this tutorial, we are going to learn how to create and manage Kubernetes Pods. First, we will start with what is a Pod in Kubernetes and how does a Pod work. Next, we shall take a brief look at the types of Pods. And then we will see how to create a new Pod and how to view the information of Pod from the command line. Finally, we will learn how to delete the Pod when it's no longer needed.

  • How To Install RPM Packages On Ubuntu 22.04 LTS | Itsubuntu.com

    Linux is all about Installing, patching, and removing software packages and package management is a method of installing, updating, removing, and keeping track of software updates from specific repositories (repos) in the Linux system. Different Linux uses their own package management tools. One of the popular Linux distros, Red Hat Linux uses RPM (RPM Package Manager) and YUM/DNF (Yellow Dog Updater, Modified/Dandified YUM) to manage the packages.

    In this tutorial, we are going to show you the method to install RPM packages on Ubuntu 22.04 LTS.

  • Create your own online shop for free with Abantecart on Ubuntu 20.04!

    Hello, friends. Having an online store is vital for your business. In this post, you will learn how to install AbanteCart on Ubuntu 20.04. With this application, you will be able to deploy a store quickly and easily.

  • Install/Upgrade Avidemux on Linux Mint 20 LTS - LinuxCapable

    Avidemux is a free and open-source software application for non-linear video editing and transcoding multimedia files. It is trendy as it allows a user to cut, join, split, rotate videos, adds filters, and support many file types, including AVI, DVD compatible MPEG files, MP4, and ASF, using a variety of codecs.

    In the following tutorial, you will learn how to Install the latest Avidemux on Linux Mint 20 LTS.

  • Install OpenRGB on Linux Mint 20 LTS - LinuxCapable

    OpenRGB is free and open-source software used to control RGB lighting control that does not require manufacturer software. The software allows for RGB amber lighting, game integrations, music visualization, and much more. OpenRGB also comes with a plugin interface that can extend the software’s functionality even further.

    In the following tutorial, you will learn how to install OpenRGB on Linux Mint 20 LTS.

  • Install UNRAR on Linux Mint 20 LTS - LinuxCapable

    UNRAR is widely known and used amongst Windows users. RAR files are much smaller archives and compress better than ZIP for most files by compressing files “together,” saving more space. UNRAR does not come pre-installed natively on Linux Mint, but it is available to install from its repository.

    The following tutorial will show you how to install UNRAR on Linux Mint 20 LTS, along with the most commonly used commands.

  • Install/Upgrade LibreOffice on Linux Mint 20 LTS - LinuxCapable

    LibreOffice is a free, open-source office productivity suite used by millions worldwide. The office suite software uses a native file format ODF or Open Document Format, an accepted and almost required structure in multiple organizations across the globe.

    LibreOffice includes Writer (word processing), Calc (spreadsheets), Impress (presentations), Draw (vector graphics and flowcharts), Base (databases), and Math (formula editing).

  • Revoke Users SUDO privileges in Linux - TREND OCEANS

    Serving SUDO privileges in the wrong hand might disrupt your Linux system with unusual packages and applications.

    We often follow the same standard method while creating a new user account for someone, like creating an account using adduser or useradd and then giving them sudo permission with the help of the usermod command.

    In performing these steps, you might give less attention to the sudo command while assigning to the user, which may be unnecessary and can lead you to conflicts with that user’s actions.

    Today we will guide you to the steps required to perform while revoking sudo privileges from users in the Linux system.

  • Install Neofetch on Ubuntu 22.04 LTS - LinuxCapable

    Neofetch is a free, open-source command-line system information tool written in bash 3.2+. Neofetch displays system information in a beautiful aesthetic way, such as system, software, memory resources, kernel version, and much more.

    In the following tutorial, you will learn how to install Neofetch along with some basic commands on Ubuntu 22.04 LTS Jammy Jellyfish.

  • how I wound up causing a major outage of my services and destroying my home directory by accident – Ariadne's Space

    As a result of my FOSS maintenance and activism work, I have a significant IT footprint, to support the services and development environments needed to facilitate everything I do. Unfortunately, I am also my own system administrator, and I am quite terrible at this. This is a story about how I wound up knocking most of my services offline and wiping out my home directory, because of a combination of Linux mdraid bugs and a faulty SSD. Hopefully this will be helpful to somebody in the future, but if not, you can at least share in some catharsis.

    [...]

    My primary development server, is named treefort. It is an x86 box with AMD EPYC processors and 256 GB of RAM. It had a 3-way RAID-1 setup using Linux mdraid on 4TB Samsung 860 EVO SSDs. I use KVM with libvirt to manage various VMs on this server, but most of the server’s resources are dedicated to the treefort environment. This environment also acts as a kubernetes worker, and is also the kubernetes controller for the entire cluster.

    Recently I had a stick of RAM fail on treefort. I ordered a replacement stick and had a friend replace it. All seemed well, but then I decided to improve my monitoring so that I could be alerted to any future hardware failures, as having random things crash on the machine due to uncorrected ECC errors is not fun. In the process of implementing this monitoring, I learned that one of the SSDs had fallen out of the RAID.

    I thought it was a little weird that one drive failed out of the three, so I assumed it was just due to maintenance, perhaps the drive had been reseated after the RAM stick was replaced, after all. As the price of a replacement 4TB Samsung SSD is presently around $700 retail, I thought I would re-add the drive to the array, assuming it would fail out of the array again during rebuild if it had actually failed.

  • 16 Basic Cron Command In Linux With Examples | LinuxTeck [Ed: Page updated]

    By using the cron command, we can schedule and run many tasks automatically in Linux/Unix. You can execute them once or on a regular basis. Cron is widely used to schedule repetitive tasks at regular intervals (using commands listed in a file called 'crontab'), and the 'at' function is a way of scheduling a task once during a specific period.For each user, Crontab maintains a crontab file. Automated jobs will be extremely helpful for many administrators who manage Linux servers.

»

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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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