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today's leftovers

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  • Massimo Pascale and his Lemur Pro Explore Dark Matter Substructure with the Sunburst Arc

    Unleash Your Potential Program winner Massimo Pascale is a graduate student studying astrophysics at the University of California, Berkeley. Using his Lemur Pro, he’s studying early galaxies and dark matter in the sunburst arc, a distant galaxy magnified through a phenomenon called gravitational lensing. Read the whole interview for more details on the project and his experience with the Lemur Pro!


    Yeah exactly. I see a lot of parallels between System76 and the open source community as a whole, and how we operate here in astronomy and the rest of the sciences as well.

  • What is Calamares graphical installer?

    Calamares is an installation tool for GNU / Linux distributions. It strives to be lightweight, user-friendly, beautiful, pragmatic, dissimilar, and distro-independent. Flexible in settings, simple and user-friendly OS installer that does not relate to any one command. This is a vivid example of the philosophy of the GNU project, when developers from different teams jointly created one product. It is now used in dozens of distributions and a few others who are close to it.

    Calamares is maintained by the Calamares team. Most are also KDE developers, with contributions from BBQLinux, Fedora, KaOS, Kubuntu, Manjaro, Maui, Netrunner, and OpenMandriva.

  • Linux overview | SparkyLinux 6.0 "KDE" - Invidious

    In this video, I am going to show an overview of SparkyLinux 6.0 "KDE" and some of the applications pre-installed.

  • Evolution of Open-source EPC — A Revolution in the Telecom Industry

    Open-source projects gravitate to some common problems in the industry. The use of open-source projects accelerates product/solution development and cuts down the costs. Open-source projects for embedded systems to the cloud are commonplace.

    Until a few years ago, telecom technologies had not leveraged the power of the open-source. This blog aims to cover the open-source movement in telecom, focused on the telecom core. We will cover the capabilities, strengths, and limitations of several open-source telecom cores. The comparisons are made based on the needs of telecom operators (MNOs and MVNOs) and enterprises who need to deploy private LTE networks.

  • Ubuntu 21.10: Release the party

    There ain’t no party like an Ubuntu release party. You might think that you are a party animal, but have you seen an Impish Indri? Some time ago, it was common for the Ubuntu LoCos (local communities) to host and run ‘release parties’, meet-ups, and get-togethers where members of the wider community come together to talk about all things Ubuntu. This idea has somewhat disappeared. But what’s stopping it from coming back?

    For Ubuntu 21.10 we’d like to encourage you to get involved in a release party again. Let’s call it a warm-up for 21.10. Because of the re-rising number of cases of COVID-19 we recommend you run a virtual meet-up, reach out to people in the community you know or have worked with before, tell them to join and invite their friends, and share the Ubuntu love.

  • pg_dumpbinary v2.5 released

    pg_dumpbinary is a program used to dump a PostgreSQL database with data dumped in binary format. The resulting dump must be restored using pg_restorebinary that is provided with this tool.

    pg_dumpbinary 2.5 was released today, this new release adds support to data restoration in tables with altered structure.

    pg_dumpbinary will now create a file meta-schema.<tablename>.txt per table that stores the tables columns list at export time. At restore time pg_restore binary will read this file if present, or get the target columns list from the pre-data section dumped. The target list will be appended to the COPY FROM command to avoid error messages like "ERROR: row field count is 28, expected 29". This is necessary for tables from upgraded extensions with more columns or if you try to import data only into an existent table with more columns.

  • Intel's Cloud-Hypervisor 18.0 Brings AArch64 Improvements, VHDX Disk Image Support

    The Intel-led open-source Cloud-Hypervisor project building off Linux's KVM (and also supporting Microsoft MSHV) and being cloud-focused and leveraging the Rust programming language for greater security is out with its newest major release.

    Cloud-Hypervisor 18.0 was christened today as the newest version of this open-source Rust-based VMM. While originally x86_64 focused given Intel leading the project, in recent times there has been a lot of 64-bit ARM (AArch64) work contributed by Arm and other stakeholders. With Cloud-Hypervisor 18.0 there is now AArch64 support for VirtIO-MEM, CPU topology support, and power button support. Live migration support for AArch64 should also now be working.

  • Cro: Maintain it With Zig

    This blog post by Loris Cro makes the claim that the Zig language is the solution to a lot of low-level programming problems...

  • Maintain it With Zig

    C and C++ are kings when it comes to writing efficient software and the C ABI is the lingua franca of software interoperability, allowing C libraries to be used by almost any other language. This ubiquity, coupled with the rise of free and open source software development, has created over the course of the last 40 years a humongous collection of libraries and tools that make up what can be rightfully described as the critical infrastructure of modern software.

  • RPi Python Library Has Retro Chiptunes And Speech Covered | Hackaday

    The classic SP0256-AL2 speech chip has featured a few times on these pages, and if you’ve not seen the actual part before, you almost certainly have heard the resulting audio output. The latest Python library from prolific retrocomputing enthusiast [Nick Bild] brings the joy of the old chip to the Raspberry Pi platform, with an added extra trick; support for the venerable AY-3-8910 sound generator as well.

    The SP0256-AL2 chip generates vaguely recognisable speech using the allophone system. Allophones are kind of like small chunks of speech audio which when reproduced sequentially, result in intelligible phonemes that form the basis of speech. The chip requires an external device to feed it the allophones at a regular rate, which is the job of his Gi-Pi library.

  • The Rust Programming Language Blog: Announcing Rust 1.55.0

    The Rust team is happy to announce a new version of Rust, 1.55.0. Rust is a programming language empowering everyone to build reliable and efficient software.

    If you have a previous version of Rust installed via rustup, getting Rust 1.55.0 is as easy as...

  • Michael Cheng Joins the Linux Foundation Board of Directors [Ed: Linux Foundation openwashing malicious things, including surveillance, using the Linux(TM) brand]

    We’re pleased to announce that Michael Cheng joined the Linux Foundation Board of Directors earlier this year. Michael is a product manager at Facebook, currently supporting open source and standards work across the company. Michael is a former network engineer and M&A attorney. He previously led the product, commercial, and intellectual property functions on Facebook’s M&A legal team.

  • Security updates for Thursday

    Security updates have been issued by Fedora (lynx, matrix-synapse, and proftpd), openSUSE (ntfs-3g_ntfsprogs), Oracle (kernel), Red Hat (RHV-H), Scientific Linux (kernel), and Ubuntu (libapache2-mod-auth-mellon, linux, linux-aws, linux-aws-5.11, linux-azure, linux-azure-5.11, linux-gcp, linux-hwe-5.11, linux-kvm, linux-oracle, linux-oracle-5.11, linux-raspi, linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, and linux-azure-5.8, linux-oem-5.10).

  • Thousands of Credentials Stolen in Global Windows and Linux Hack

    The campaign, Chimaera, which was made public yesterday by AT&T Alien Labs, has been in operation since July.

    Windows users have been attacked, alongside various Linux distributions including Alpine, AWS, Docker and Kubernetes.


    To infect Windows systems, the attackers implemented a malicious script into the device that automatically downloads all the tools needed to mine data.

    Researchers have urged organisations to keep software updated and maintain minimal exposure to the internet on Linux servers.

More in Tux Machines

digiKam 7.7.0 is released

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

Samsung, Red Hat to Work on Linux Drivers for Future Tech

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.