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today's leftovers

Submitted by Roy Schestowitz on Tuesday 21st of June 2022 10:17:38 PM Filed under
Misc
  • an optimistic evacuation of my wordhoard -- wingolog

    Good morning, mallocators. Last time we talked about how to split available memory between a block-structured main space and a large object space. Given a fixed heap size, making a new large object allocation will steal available pages from the block-structured space by finding empty blocks and temporarily returning them to the operating system.

    Today I'd like to talk more about nothing, or rather, why might you want nothing rather than something. Given an Immix heap, why would you want it organized in such a way that live data is packed into some blocks, leaving other blocks completely free? How bad would it be if instead the live data were spread all over the heap? When might it be a good idea to try to compact the heap? Ideally we'd like to be able to translate the answers to these questions into heuristics that can inform the GC when compaction/evacuation would be a good idea.

  • GNU Taler 2022-6: "A digital euro and the future of cash"

    The Central Bank of Austria has published a report in the context of a workshop celebrating 20 years of Euro-denominated cash. The report discusses the future of cash, including account- and blockchain-based designs, as well as GNU Taler.

  • Manage without Disruption: Introducing SUSE Manager 4.3

    In a world of disruptions, the new SUSE Linux Enterprise (SLE) brings innovation without disruption. Our new Linux helps our customers and partners stay ahead of cyberattacks with advanced supply chain security and confidential computing.

    But what is a secure system worth if you can’t keep it that way? Today, we’re excited to launch SUSE Manager 4.3 to keep your systems secure — no matter which Linux distro you are running or where it is located.

»

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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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