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today's howtos

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HowTos
  • Factorials and unscrambling words with bash on Linux

    In this post, we examine a bash script that takes a string of letters, rearranges them in every possible way and checks each permutation to identify those that are English words. In the process, we'll take a close look at the script and calculate how hard it might have to work.

    Note that, in the algorithm used, each letter arrangement must use all of the letters in the string provided. Words formed by substrings are not considered.

  • Grafana, Loki, syslog-ng: jump-starting a new logging stack

    Talking to syslog-ng users, I found that many of them plan to take a closer look at Grafana, due to the upheaval around the change of licensing terms for Elastic. Luckily, it is now possible to jump-start the complete, new logging stack – including Grafana, Loki, syslog-ng and tools to monitor this stack – with a single command. All you need to do is to point a couple of syslog clients at the included syslog-ng server and open Grafana in your browser. Of course, this setup is far from being production-ready, but it can speed up preparing a test environment for you.

    From this blog, you can learn how to install Grafana, Loki, syslog-ng stack, how to forward your log messages there, and how to check the results in Grafana.

  • rename anime fansubs
  • Oracle Linux Virtualization Manager: Managing Virtual Machines made easy with short training videos

    In last week’s Training Tuesday blog, we introduced you to the first in a series of training videos on Oracle Linux Virtualization Manager. Today, we continue with the second set of free, short videos on managing virtual machines (VM). These videos demonstrate deployment of VMs through the Administration Portal and VM portal graphical interfaces.

    In this set of videos, you learn about the physical, logical, and virtual components needed to create and run virtual machines. You learn how to use templates to simplify the deployment of similar virtual machines and how to create and use Open Virtual Appliance (OVA) files in Oracle Linux Virtualization Manager.

  • Disabling Tracker in Fedora

    I have realized that one of the tracker processes is dying every few seconds on my Fedora 33, I got ton of ABRT reports and system log filled with stacktraces. Bugs happen, however I don’t actually utilize this tool very much. Searching in contacts, files, browser history, photos, documents of files is nothing I use, maybe except accessing specific settings by typing “mouse”. But I can live with that.

  • Booting S390x libvirt VMs over network - Lukáš Zapletal

    I am exploring S390x provisioning support for Foreman and it looks like network booting S390x virtual machines could be a good start. Foreman can be used with or without libvirt compute resource to either run and customize an image via SSH finish template or booting from network.

    In QEMU environment, s390-ccw firmware is utilized to boot the operating system which is not as flexible as on Intel, but thanks to the recent work of Red Hat and IBM engineers in 2018 it offers two ways of booting from network via DHCP/BOOTP protocols.

  • Getting started with Flutter on Ubuntu

    Recently there was an announcement from Ubuntu that the desktop team are working on a replacement for the Ubiquity installer. The really interesting part of the post by Martin Wimpress, head of the Ubuntu Desktop team at Canonical, is that the new installer will be built using Flutter.

    Flutter is a cross-platform User Interface framework that can target Linux, macOS, Windows, Android, and iOS all from the same source code. I have been aware of Flutter for some time now but have been trepidatious in jumping in to sample the water, because I am completely unfamilier with the Dart programming language and was worried about making the time investment.

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.