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Programming Leftovers

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  • Using ProxyCannon-NG to Create Unlimited Rotating Proxies

    The modern age of computers is amazing to me. In a few mere minutes we can spin up a seemingly unlimited number of virtual servers on any one of the hundreds of cloud providers out there around the world.

  • CVE-2020-10029: Buffer overflow in GNU libc trigonometry functions?!?

    Earlier this year we uncovered bugs in the glibc functions cosl, sinl, sincosl, and tanl due to assumptions in an underlying common function, leading to CVE-2020-10029. These bugs, after being dormant for 8 years (introduced in 2012, in this commit) are now fixed in glibc 2.32.

  • Combine GraphQL with Java to build a flexible and modern API

    In the past few years, developers have used RESTful web services over HTTP(s) to expose business functions using an API. The REST API uses server-driven fixed data responses, which means a developer (client) can't determine the result of a response. Instead, the server sends all the data back to the client, which is called over-fetching. The developer (client) needs to invoke multiple REST APIs after the first call until the client gets the required data, which results in under-fetching.

    To create new microservices, developers using these REST APIs have been looking for ways to minimize over-fetching and under-fetching when retrieving data along with business logic.

    GraphQL provides a client-driven query language and runtime to prevent this overhead on the client side and instead retrieve the exact data that the REST API requires. When GraphQL came out, many developers thought that it could replace existing REST API specifications. However, it's not a replacement but an alternative.

  • The surprising thing you can do in the D programming language

    Software development can be a very complex process. As the code you write increases in size and complexity, it is important to keep it readable and easy to understand. In open source software development, many people collaborate on code with several interconnected and, quite often, frequently moving parts. This can make it hard for potential contributors to understand the codebases.

    The effort required to wrap your head around a codebase may have a direct impact on contributions, as a lot of people have a limited window for contributing, many doing it in their free time. This makes it essential for a codebase to be easy to understand for both seasoned and new contributors.

  • Now Out: Uno Platform 3.0 (C# + WinUI), Previewing Linux Support [Ed: When Microsoft says it "loves Linux" it means it's trying to impose proprietary vendor lock-in on it]
  • Excellent Free Tutorials to Learn Kotlin

    Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. Kotlin is a more modern version of Java. It adopts functional ideas such as immutability and first-class functions, out of the box, and it is also object oriented.

    Kotlin is designed to interoperate fully with Java, and the JVM version of its standard library depends on the Java Class Library, but type inference allows its syntax to be more concise. Kotlin mainly targets the JVM, but also compiles to JavaScript or native code (via LLVM).

    Kotlin has been making waves since it was open sourced by JetBrains in 2011; it has been praised by developers across the world and is being adopted by companies.

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.