Language Selection

English French German Italian Portuguese Spanish

today's howtos

Filed under
HowTos
  • How to Install and Configure KVM on Ubuntu Linux

    KVM allows you to use multiple OS on your system without having issues. There are options to use virtual machines, VMware, and other integrated systems for using different operating systems on your PC. Still, KVM is one of the most reliable arrangements for virtualization. KVM stands for Kernel-based Virtual Machine, which allows you to switch between mouse, keyboard, monitor, and systems. Some people also consider KVM as an integrated arrangement of Keyboard-Video-Mouse, where the entire system works over an internet (local/broad) connection. KVM has both hardware devices and software systems that you can install/use with your Ubuntu system. If you’re a system administrator, using KVM on your system must give you relief from switching one system to another.

  • How To Use PostgreSQL With Ruby On Rails Application - OSTechNix

    Even though the default database SQLite3 works great with Ruby on Rails, we shouldn't be using it in some cases. For instance, if your Rails application is being concurrently accessed by large number of users, SQLite is not recommended. We should try more robust databases like MySQL or PostgreSQL, which provides scalability, concurrency, centralization, and control. We already knew how to use MySQL with Rails application. Today, we will see how to use PostgreSQL with Ruby on Rails application in Ubuntu Linux.

  • How to view and delete photo metadata - Tutorial

    Images be images. Photos be photos. A collection of pixels. But not just. Various image formats also support the inclusion of additional information in the image file, things like resolution, focal length, shutter speed, GPS data, and more. This extra stuff, commonly referred to as Exif data, can be useful for tagging and search, but it may not necessarily be the best thing when it comes to privacy.

    In this article, I'd like to show you a few useful methods for how to examine and then optionally remove Exif data from your photos or images, so that if you must share them with other people, they don't contain too much unnecessary information other than pretty pixels. I'll mostly focus on Linux, with some small extras for Windows folks. All right, follow me.

  • Get a handle on building WebAssembly microservices with this free Linux Foundation course - TechRepublic

    The Linux Foundation has announced a new online course designed to help developers learn to use WebAssembly modules "from the cloud to the edge," and it's currently free for anyone who wants to sign up.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

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.