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today's leftovers

Submitted by Roy Schestowitz on Monday 1st of February 2021 05:23:42 PM Filed under
Misc
  • [Older] OpenBSD Worrying RAID · irl.xyz

    I wanted to move a couple of USB hard drives from one OpenBSD machine to another. They are configured with softraid(4) as RAID 1 (mirrored). When I plugged the drives into the new machine though, nothing happened with softraid. This was pretty worrying.

  • OpenBenchmarking.org / PTS Adds Automated Per-Test Analysis Of CPU Instruction Set Usage - Phoronix

    For those wondering how say AVX heavy a particular program is being benchmarked or if a given program/benchmark supports making use of new instruction set extensions such as Vector AES or forthcoming AVX VNNI or AMX, the Phoronix Test Suite and OpenBenchmarking.org can now provide that insight on a per-test basis with common CPU instruction set extensions.

    [...]

    About nine years ago I wrote an initial CPU instruction analysis for OpenBenchmarking.org albeit was in rough shape and not of much priority. After last year's overhaul to OpenBenchmarking.org, I began toying with it again and rewrote the implementation and is now much more capable. These days it's more interesting as well in an AVX-512 era where it can have significant implications on per-core clock speeds. Plus with the forthcoming Advanced Matrix Extensions (AMX) among other more recent notable extensions, the feature makes more sense and usefulness these days.

    As of this weekend, the functionality is now restored on OpenBenchmarking.org. Test profiles will begin displaying what notable CPU instructions are used by a given test/benchmark. All flavors of AVX, AMX, AES, VAES, SERIALIZE, ENQCMD, MOVDIRx, FMA, and BMI2 are among the instructions being reported on the web interface.

  • I wish every program that wanted 'a SQL database' would let me use SQLite

    Why I want this is simple; if your program can use SQLite, I don't have to run a database server for it. When I don't have to run a database server, I also don't have to install it, set it up, manage the access passwords for it, make sure I'm properly backing it up, manage updates to it (including across upgrading the version of the operating system), and so on and so forth. Every actual database server (whether MySQL, PostgreSQL, or something else) comes with its own collection of necessary work to maintain it. As sysadmins, we can do all of that work, but we only have a finite amount of work time and we would really like to spend that time on more useful things.

  • Open Source for Everyone

    The beginnings of what is now most commonly referred to as “open source software” was an earlier movement that coined the term Free Software. While it’s mainly about free-ness akin to ‘free speech’ and not necessarily about being ‘free of charge’, the latter is almost always the case as well.

    By the 1980s, almost all software was proprietary, which means that it had owners who forbid and prevent cooperation by users.

    Source: https://www.gnu.org/gnu/gnu-history.html

    In response to the prevailing trend of closed software, a group of liberal-minded technologists devised The Free Software Definition. Think of it as a “Declaration of Code Freedoms”. It goes like this:

»

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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

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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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