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today's howtos

Submitted by Roy Schestowitz on Monday 22nd of March 2021 07:27:46 AM Filed under
HowTos
  • How to Create and Use Ansible Roles in Playbook

    Ansible is an opensource configuration management and orchestration tool that makes it easy to automate IT tasks in a multi-tier IT environment. With a single command, you can configure multiple servers and deploy applications without logging into each of the servers and doing the configuration by yourself. In doing so, Ansible simplifies tasks that would otherwise be time-consuming and tedious.

    With the increase in the number of playbook files executing various automation tasks, things can get a bit complex. And that’s where Ansible roles come in.

  • How To Install Swift Programming Language on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Swift Programming Language on Ubuntu 20.04 LTS. For those of you who didn’t know, Swift is a modern open-source high-performing programming language. Mainly it is used for iOS app development but, you can use it for systems programming, cloud services, and design other applications. It was developed by Apple and released in 2014. Swift was designed as a replacement for the older Objective-C language.

    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 Swift Programming Language 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 install RStudio on a Chromebook

    Today we are looking at how to install RStudio and R base on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

    This tutorial will only work on Chromebooks with an Intel or AMD CPU (with Linux Apps Support) and not those with an ARM64 architecture CPU.

  • Top 16 Tar Command with Examples in Linux

    Tar is an archiving software utility for the computer for compressing multiple files and directories into one archive file. It’s an acronym for Tape Archive that is broadly used in Linux/Unix. Tar archiving is mostly used for the purpose of data backup or distribution of source files or packages. Tar command is used for archiving, compressing, and extracting as it has a variety of its types, the most popular ones are tar, tar.gz, and tar.bz2.

    [...]

    As tar command supports various archive file formats but its default archive format is .tar. In order to create a .tar archive, you need to add the hyphen c (-c) option which denotes creating an archive and the hyphen f(-f) option which denotes archive name. Then, determine the archive name with extension (.tar). Lastly, provide filenames or directories you want to archive. You can also pass the -v option to view verbose of process operation.

  • Exporting LibreOffice Guides to XHTML (Part II)

    In the previous blog post I explained the reasons and some issues on exporting LibreOffice Guides to the xHTML format. Now it is time to give more technical details.

    I choose to use the extension writer2xhtml available in the Extension website, because the produced HTML5 look less cluttered than the native XHTML export. Nevertheless there it will be necessary to add some extra HTML5 lines, to load the CSS and a Javascript file.

    Invisible changes in chapter files that can go upstream

    There are some changes that should go upstream, because it does not change the resulting PDF or ODT book layout.

    Each image must be anchored “as character” in the document. The image becomes a character and must be single in the paragraph. The paragraph must be centered in the page, using a style that aligns in the center, for example, the “Figure” paragraph style. The image caption paragraph must have style “Caption”. The wrapping frame that holds the image and the caption must also be anchored “as character” in a paragraph with style “Figure” as well. This arrangement is transparent when producing ODT, PDF and HTML5 documents.

    Tips, Notes and Cautions headings use graphics as bullet. Many of these paragraphs have the bullet enabled by direct formatting and this is invisible to the user in LibreOffice, but will show when exporting to HTML5 with an ugly black circle.

»

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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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