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today's howtos

Submitted by Roy Schestowitz on Saturday 18th of June 2022 10:18:58 AM Filed under
HowTos
  • Free associating from 'df' to RCE

    This chat lead to the inevitable topic of that time someone wrote an uninstaller that did something like "rm -rf $THING/", and sometimes $THING would be empty, so fun things happened. This generally put us in the mindset of "how can things go wrong", and "how can they can *be made* to go wrong, if you wanted to do that". The fact that a PATH was coming into play suggested system() or popen(), both of which run through a shell and thus introduce the possibility of injecting your own commands.

  • Summing and grouping values with jq

    Here's yet another note-to-self on using jq, this time to transform a flat list of order totals and dates into a summary of total order values by year.

    In doing some research for an upcoming live stream I was looking at the Northwind OData v4 service and in particular at the Summary_of_Sales_by_Years entity set. It is not what I initially expected; rather than be a summary of sales by year, it was a list of orders each with a shipping date, order ID and order total. There are over 800 entries, and I grabbed all of them and stored them in a single JSON file Summary_of_Sales_by_Years.json using a Bash shell script slurp that auto-follows the @odata.nextLink annotation trail on each chunk response.

  • SVG to PNG

    Here is a way to get a high-quality PNG image with R: save it as SVG first, then convert the SVG file to a PNG file, with the rsvg package.

  • How To Install LibreWolf Browser on Debian 11 - idroot

    In this tutorial, we will show you how to install LibreWolf Browser on Debian 11. For those of you who didn’t know, the LibreWolf web browser is designed to increase protection against tracking and fingerprinting techniques, while also including a few security improvements. LibreWolf is available on all desktop-based operating systems such as Windows, Mac, and Linux distributions

    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 LibreWolf Browser on a Debian 11 (Bullseye).

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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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