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today's leftovers

Submitted by Roy Schestowitz on Saturday 18th of December 2021 12:58:41 AM Filed under
Misc
  • Data centre networking: What is OVN? | Ubuntu

    With the development of open source software-defined networking solutions, virtualisation took a progressively more important place in modern data centres. Concepts like virtual switching and routing became part of the data centre networking scene, with OVS as a pioneering example. Virtual switches nevertheless did initially miss very important networking features and standards, which hardware-based network devices already had – and which were proven and widely implemented. OVN came to represent those network features in virtual switching environments and address their extensibility across multi-host clusters. Let’s first take a closer look in order to understand what OVN is.

  • Data centre networking: SmartNICs

    With the explosion of application traffic and the multiplication of data centre workloads during the last decade, east-west traffic greatly increased and ended up impacting the traditional north-south based architectures. This raised the need to review the entire data centre architecture while keeping the goal of meeting performance, security, and monitoring requirements.

    From a performance and security perspective, rather than shunting the traffic to centralised security and management blocks within the data centre (which might cause performance issues) or accepting uncontrolled zones, the forwarding and security intelligence can be distributed throughout the data centre.

  • Felix Häcker: #23 Modernized Settings

    Update on what happened across the GNOME project in the week from December 10 to December 17.

  • Farewell Telegram - Hello Signal! - Ignorance is bliss...

    In the last few years I started to use Telegram as my main messenger, beside good old SMS/e-mail.

    I never used WhatsApp as I try to stay away from the Facebook/Meta/… ecosystem.

    Telegram seemed like a good choice as a lot of people I know are there and we e.g. mirror our KDE channels often to Telegram for better outreach, too. And all old messengers like ICQ more or less were abandoned by everybody I know including myself ;=)

    Unfortunately, during the current pandemic, I met more and more people that went down into the rabbit hole thanks to totally uncontrolled Telegram groups.

    Yes, you can say: this is free speech.

    It is.

    But on the other side, I think it can’t really be tolerated that people start to live in some parallel universe that completely ignores any science/laws/facts of the real world.

  • Apple quietly deletes details of derided CSAM scanning tech from its Child Safety page without explanation [Ed: Apple does not care about the US Constitution; it'll treat all of its clients like pedophiles (until they prove otherwise)]

    Apple evidently has decided against forcing customers to run its sex crime detection software on their iPhones in order to refer those stashing illegal child abuse images in iCloud to authorities.

    We say "evidently" because the iTitan has simply erased the explanatory text it posted in August that describes its non-consensual image vetting system and has not responded to a request to clarify its plans.

    That month, Apple announced its intention to implement Child Sex Abuse Material (CSAM) Detection [PDF], one of two initiatives that it detailed on its Child Safety webpage. The other, a parental control for its Message app to "warn children and their parents when receiving or sending sexually explicit photos," debuted in iOS 15.2, which was released on Monday.

  • NVIDIA NVDEC Video Decode Support Sent Out For Linux 5.17, Better Power Management - Phoronix

    After the open-source NVIDIA Tegra DRM driver changes intended for Linux 5.16 weren't pulled due to timing, they are back around for Linux 5.17 with most notably the open-source Tegra driver feature pull request introducing NVDEC video decoding.

    NVIDIA's Thierry Reding sent out the Linux 5.17 Tegra DRM driver changes to DRM-Next today. Like the work that was intended for Linux 5.16 but un-merged, the big items are a rework to buffer object handling to better match DMA-BUF expectations and then the NVDEC driver.

»

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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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