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Programming Leftovers

Submitted by Roy Schestowitz on Thursday 2nd of December 2021 05:21:54 PM Filed under
Misc
  • Advent of Code 2021: Day 1 Three Ways

    True to tradition (further evidence here), I decided to solve the first day of this year's Advent of Code on my Amiga. I didn't stop there, however. As previously explained, I've been bitten by some kind of mainframe bug and also made an attempt in COBOL. But first of all, I solved it in Python. The three solutions are quite similar in their approach, yet I think they showcase some of the fundamentals and particularities of each language in a nice way.

  • This shouldn't have happened: A vulnerability postmortem

    The maximum size signature that this structure can handle is whatever the largest union member is, in this case that’s RSA at 2048 bytes. That’s 16384 bits, large enough to accommodate signatures from even the most ridiculously oversized keys.

    Okay, but what happens if you just....make a signature that’s bigger than that?

    Well, it turns out the answer is memory corruption. Yes, really.

  • [Old] doas insults

    There’s no question that doas does exactly what I need from a sudo replacement with simpler configuration, but there is one feature of sudo that I’ve found myself missing:

    Insults. sudo has a marvelous feature where, if enabled, it insults you upon getting your password incorrect or authorization failing for some other reason. doas in its effort to be a sudo replacement without all the bloat, neglects to implement this. Fortunately, it’s easy enough to work around.

  • Fortran newsletter: December 2021

    Welcome to the December 2021 edition of the monthly Fortran newsletter. The newsletter comes out at the beginning of every month and details Fortran news from the previous month.

  • This Week In Rust: This Week in Rust 419
  • Winter Blog Backlog: Recent Progress

    The purpose of these posts is to maintain continuity and skip the detail. They mainly have bullet points and links, including #zulip-links and #comments.

    [...]

    This first backlog post sketches recent progress and releases, and is more detailed. For context, the last release was Oil 0.9.4 - User Feedback, less than 2 weeks ago.

  • Raku Advent Calendar: Day 2 – Rotation of Log files in a nutshell

    Santa has a cloud-based application that helps him to deliver the gifts to the children. Once the gifts have been delivered Santa registers the delivery operation through the deliveries.log file. Just after the inspector elves review this log file comparing it with the list of children to ensure that all the children have received correctly their gifts.

  • UNIX Wars – The Battle for Standards

    The battle for Unix standardization continued into the 1990s, until a couple of events changed everything. First, in the early 1990s, the economy took a turn for the worst. “Bull, DEC, IBM, and the computer side of Siemens all lost money. AT&T resold its share of Sun.” Second, Microsoft entered the enterprise operating system with the release of Windows NT in 1993. “The proprietary NT was aimed squarely at Unix and was intended to extend Microsoft’s desktop hegemony to the data center and other places owned by the likes of Sun servers.”

    In an attempt to stop an exodus of users from Unix to Windows NT, Unix rivals created the Common Open Software Environment, which was another attempt to create a Unix standard.

»

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Dilution and Misuse of the "Linux" Brand

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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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