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Fedora and Red Hat Leftovers

Submitted by Roy Schestowitz on Saturday 23rd of January 2021 12:46:07 AM Filed under
Red Hat
  • Peter Hutterer: Auto-updating XKB for new kernel keycodes

    This two-part approach exists so either part can be swapped without affecting the other. Swap the second part to an exclamation mark and paragraph symbol and you have the French version of this key, swap it to dash/underscore and you have the German version of the key - all without having to change the keycode.

    Back in the golden days of everyone-does-what-they-feel-like, keyboard manufacturers (presumably happily so) changed the key codes and we needed model-specific keycodes in XKB. The XkbModel configuration is a leftover from these trying times.

    The Linux kernel's evdev API has largely done away with this. It provides a standardised set of keycodes, defined in linux/input-event-codes.h, and ensures, with the help of udev [0], that all keyboards actually conform to that. An evdev XKB keycode is a simple "kernel keycode + 8" [1] and that applies to all keyboards. On top of that, the kernel uses semantic definitions for the keys as they'd be in the US layout. KEY_Q is the key that would, behold!, produce a Q. Or an A in the French layout because they just have to be different, don't they? Either way, with evdev the Xkb Model configuration largely points to nothing and only wastes a few cycles with string parsing.

  • Máirín Duffy: Fedora Design Team Sessions Live: Session #1

    As announced in the Fedora Community Blog, today we had our inaugural Fedora Design Team Live Session

    Thanks for everyone who joined! I lost count at how many folks we had participate, we had at least 9 and we had a very productive F35 wallpaper brainstorming session!

  • Knowledge meets machine learning for smarter decisions, Part 2

    Red Hat Decision Manager helps organizations introduce the benefits of artificial intelligence to their daily operations. It is based on Drools, a popular open source project known for its powerful rules engine.

    In Part 1 of this article, we built a machine learning algorithm and stored it in a Predictive Model Markup Language (PMML) file. In Part 2, we’ll combine the machine learning logic with deterministic knowledge defined using a Decision Model and Notation (DMN) model. DMN is a recent standard introduced by the Object Management Group. It provides a common notation to capture an application’s decision logic so that business users can understand it.

  • Four tactics to build Twitter followings for open source communities

    If you work in a role related to marketing, you’ve probably heard of brand personality, the human characteristics companies use to market themselves and their products. On Twitter, it’s fast food giant Wendy’s claim to fame, and it even drives impact on many of Red Hat’s own social accounts.

  • Part 1 - Rancher Kubernetes Engine (RKE) Security Best Practices for Cluster Setup | StackRox
  • Part 2 - Rancher Kubernetes Engine (RKE) Security Best Practices for Authentication, Authorization, and Cluster Access
  • Part 3 - Rancher Kubernetes Engine (RKE) Security Best Practice for Container and Runtime Security
»

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today's howtos

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    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.

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  • How To Install MongoDB on AlmaLinux 9 - idroot

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