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today's leftovers

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  • Are "Mainstream" Linux Distros Better?

    Sometimes, I ramble on for long periods of time in front of the camera. Today's video is a great example of this. I read a viewer email that asks several important questions regarding transitioning from "noob" to "power user", if distros matter, and if desktop environments matter.

  • First experience with XFCE

    Today, we're going to take a look at the last major desktop environment that I have never really touched, and that's XFCE. This is the first video in a series that will cover the desktop, the default apps, and the customization options.

  • The Floor Moves!

    You can imagine the microprocessors needed to control all of this are pretty minimal. The team used an Arduino, I'd opt for the Raspberry Pi Pico, but you could use whatever you wanted - it's not a difficult control problem.

  • Utkarsh Gupta: Hello, Canonical! o/

    Today marks the 90th day of me joining Canonical to work on Ubuntu full-time! So since it’s been a while already, this blog post is long due. Smile

    [...]

    Those who know, they know that this is really very exciting for me because Canonical has been a dream company for me, for real (more about this below!). And hey, this is my first job, ever, so all the more reason to be psyched about, isn’t it? ^_^

  • Window decorations revisited (or: using the right tool for the job)

    KDE’s approach is so much better and more sane than the CSDs in GNOME. CSDs have wreaked havoc in the world of GTK desktops, with Xfce in particular suffering hard due to its use of Xfwm, causing a giant rift between the looks of Xfwm and the CSDs of many GTK applications. The main issue here is that a title bar is a title bar for a reason – I don’t want it littered with buttons and other widgets that belong to the application, not the window.

  • 3 reasons to learn Java in 2021 | Opensource.com

    Java was released in 1995, making it 26 years old as I'm writing this. It was proprietary at first, but in 2007, Java was released as open source under the GPL. To understand what makes Java important, you have to understand the problem it claims to solve. Then you can understand why and how it benefits developers and users.

    The best way to understand what Java solves is to develop software, but just using software is a good start, too. As a developer, your troubles are likely to begin when you send software that works perfectly on your own computer to some other computer; it probably won't work. It should work, but as any programmer knows, something always gets overlooked. This is compounded when you try the software on another operating system (OS). It's why there are so many download buttons on any given software site: a button for Windows, for macOS, for Linux, for mobiles, and sometimes even more.

    [...]

    All the popular programming languages have great support systems in place. It's what makes popular languages popular. They all have lots of libraries; there are integrated development environments (IDEs) or IDE extensions for them, example code, free and paid training, and communities of developers. On the other hand, no programming language seems to have quite enough support when you get stuck trying to make something work.

    I can't claim that Java can differentiate itself from these two universal but contradictory truths. Still, I have found that when I need a library for Java, I inevitably find not just one but several options for a given task. Often I don't want to use a library because I don't like how its developer chose to implement the functions I need, its license is a little different from what I prefer, or any other trivial point of contention. When there's bountiful support for a language, I have the luxury of being very selective. I get to choose one—among many perfectly suitable solutions—that will best achieve any requirement, however trivial.

    Better yet, there's a healthy infrastructure around Java. Tools like Apache Ant, Gradle, and Maven help you manage your build and delivery process. Services like Sonatype Nexus help you monitor security. Spring and Grails make it easy to develop for the web, while Quarkus and Eclipse Che help with cloud development.

  • Toggling Spectre Mitigations On Xeon Scalable Ice Lake Show Little Runtime Difference

    As usual when getting my hands on a new processor family, I was curious about the performance difference if booting the Xeon Platinum 8380 "Ice Lake" processors with the Spectre security mitigations disabled at run-time. Ultimately there was very little difference when using the standard "mitigations=off" option for these new Intel server processors.

    Intel 3rd Gen Xeon Scalable "ice Lake" processors are not affected by Meltdown, MDS, L1TF, ITLB Multihit, SRBDS, or TAA, but do still require kernel protections involving Spectre V1/V2/V4. Spectre V1 mitigation on the Ice Lake server CPUs involve usercopy/SWAPGS barriers and __user pointer sanitization, Spectre V2 on these new CPUs involves enhanced IBRS (Indirect Branch Restricted Speculation) and conditional IBPB (Indirect Branch Prediction Barrier) and RSB (Return Stack Buffer) filling.

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.