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today's howtos

Submitted by Roy Schestowitz on Saturday 26th of June 2021 07:08:36 PM Filed under
HowTos
  • Remote: a little module for more elegant remoting with WebSockets

    Remote1 is a tiny (< 50 lines of code) module that creates a very lightweight façade over a socket connection, using convention over configuration to give you an expressive interface with which to send outgoing messages and handle incoming ones.

  • A couple of Linux top-like programs for network traffic

    I have an enduring interest in programs that give you some sort of top-like view of current network traffic, stemming in part from having our NFS fileservers, an active IMAP server, a sometimes quite used web server, all sorts of NFS clients, and so on. In the shiny future where we have Ubuntu 20.04 and 22.04 machines, this interest will probably be significantly met with eBPF based programs. But for now we're still mostly on Ubuntu 18.04 and 18.04 doesn't have good support for eBPF tools, so I have to get by with some old Linux standbys that work through more traditional means.

  • How to Convert File Formats With Pandoc in Linux

    In an earlier article, I covered the procedure to batch convert a handful of Markdown files to HTML using pandoc. In that article, multiple HTML files were created, but pandoc can do much more. It has been called “the Swiss army knife” of document conversion – and with good reason. There isn’t a lot that it can’t do.

    Pandoc can covert .docx, .odt, .html, .epub, LaTeX, DocBook, etc. to these and other formats, such as JATS, TEI Simple, AsciiDoc, and more.

  • How to Create a Sudo User in CentOS/RHEL – TecAdmin

    Sudo allows us to provide superuser privileges to a normal user with restrictions. It allows users to run programs with the privileges of the superuser. You can configure sudo to give root privileges to specific commands only.

  • How To Disable Camera Permanently on Firefox Browser

    To disable camera permanently on Firefox, open the menu button > Preferences > go to Privacy & Security settings > Permissions section > find Camera > click Settings > check Block new requests asking to access your camera > Save Changes > finished. Now every website requiring camera will automatically be blocked to access the camera. For example, it is useful if you often do screen sharing via video conferences but had been disabling manually every camera access so with this trick now you will have it disabled automatically in every conference while all other features like microphone (voice) and text (chat) still work normally. Another important benefit is that now you can disable your camera without putting a sticker to cover it physically. Happy conferencing!

  • Install Audacity 3.0.2 From PPA in Ubuntu 20.04, Ubuntu 21.04 | UbuntuHandbook

    Audacity audio editor and recorder is easy to install in Ubuntu Software via Snap package. For those prefer the classic deb package, the Ubuntu PPA has updated for the latest Audacity 3.0.2.

    Since Audacity 3.0, it requires the development branch of wxWidgets toolkit 3.1.x. However, Ubuntu provides only the stable v3.0 series packages.

    Thanks to Pascal de Bruijn, I’ve successfully built wxWidgets 3.1.3 for Audacity. So the audio editor packages updated for Ubuntu 18.04, Ubuntu 20.04, Ubuntu 21.04, and Linux Mint 20.

  • systemd on Linux: Intro and Unit Files

    The first video in the systemd series, covering the basics of Linux init and systemd, including how to create systemd unit files for services.

  • Top 5 Interesting and Funny Commands on Linux (Fun Terminal)

    For a linux user, the terminal or command line is a powerful and important tool for work. A lot of things on linux are done inside the terminal.

    When working on a linux server, the command line shell is the only interface to work with, most of the time. But the terminal is also very textish and a bit non-interesting at time.

    The linux terminal is not always dull and boring. There are commands to make it do some funny acts to entertain the user.

»

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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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