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Linux and Linux Foundation: Teleport, APIStrat, Shrinking the Linux Kernel, and SDNs

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Linux
  • New Linux SSH server shows off Golang's infrastructure power

    Gravitational, maker of a software-as-a-service support system built with Kubernetes, has released the latest open source iteration of a key part of that system.

    Teleport, an SSH server that provides support teams with a simpler way to remotely manage server clusters, is an example of Google's Go language being used to devise safer but still performant replacements for critical infrastructure.

  • APIStrat Becomes a Linux Foundation and Open API Initiative Event

    The Linux Foundation, the nonprofit advancing professional open source management for mass collaboration, today announces that the API Strategy & Practice Conference has become a Linux Foundation event and will be jointly produced with the Open API Initiative (OAI), a Linux Foundation project. Linux Foundation events are where the world’s leading technologists meet, collaborate and innovate. APIStrat 2017 will take place October 31 – November 2 in Portland, OR.

  • Shrinking the Linux Kernel and File System for IoT

    At last year’s Embedded Linux Conference Europe, Sony’s Tim Bird warned that the stalled progress in reducing Linux kernel size meant that Linux was ceding the huge market in IoT edge nodes to real-time operating systems (RTOSes). At this February’s ELC North America event, another figure who has long been at the center of the ELC scene -- Free Electron’s Michael Opdenacker -- summed up the latest kernel shrinkage schemes as well as future possibilities. Due perhaps to Tim Bird’s exhortations, ELC 2017 had several presentations on reducing footprint, including Rob Landley’s Tutorial: Building the Simplest Possible Linux System.

    Like Bird, Opdenacker bemoaned the lack of progress, but said there are plenty of ways for embedded Linux developers to reduce footprint. These range from using newer technologies such as musl, toybox, and Clang to revisiting other approaches that developers sometimes overlook.

    In his talk, Opdenacker explained that the traditional motivator for shrinking the kernel was to speed boot time or copy a Linux image from low-capacity storage. In today’s IoT world, this has been joined with meeting the requirement for very small endpoints with limited resources. These aren’t the only reasons, however. “Some want to run Linux as a bootloader so they don’t have to re-create bootloader drivers, and some want to run to the whole system in internal RAM or cache,” said Opdenacker. “A small kernel can also reduce the attack surface to improve security.”

  • SDN dilemma: Linux kernel networking vs. kernel bypass

    If we've learned anything in the technology business in the last 25 years, it would be to never underestimate the Linux kernel. Why, then, have so many networking companies been so eager to bypass the Linux kernel -- or more specifically, the Linux kernel networking stack? What could be so wrong with the networking packet arteries in the Linux kernel that motivates so many of us to bypass them?

    There are two main reasons. First, the kernel networking stack is too slow -- and the problem is only getting worse with the adoption of higher speed networking in servers and switches (10GbE, 25GbE, and 40GbE today, and rising to 50GbE and 100GbE in the near future). Second, handling networking outside the kernel allows for plugging in new technology without the need to change core Linux kernel code.

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Dilution and Misuse of the "Linux" Brand

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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.