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today's howtos

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HowTos
  • Fixing "cannot find signatures with metadata for snap" Error

    The other day I was trying to install massCode application. For installation, it provided a Snap file to download.

    [...]

    There are no signatures involved here.

    What happens is that you have downloaded a Snap installer file from a third party. The snap mechanism in Ubuntu expects you to get the snap packages from the official snap store.

    Since it doesn’t come from the snap store, you see the ‘cannot find signatures with metadata for snap’ error message. The error message is not descriptive, like most error messages.

  • How to Install WordPress with LAMP on SUSE Linux Enterprise

    Written in PHP, WordPress is one of the most popular and widely used CMS (Content Management Systems). It is free and open-source and is used for creating stunning websites by providing prebuilt feature-rich templates that are easily customizable. As such, you can create cool websites without the need to write any code.

    In this guide, we will demonstrate how to install WordPress with LAMP on SUSE Enterprise Server 15.

  • ow to install Visual Studio Code on Ubuntu 20.04|22.04 [Ed: No, do not install proprietary spyware from the company that attacks GNU/Linux. Use free/libre software which does not spy on the user and is not controlled by Microsoft]

    In this article we are going to learn how to install Visual Studio code also know as (VScode) on Ubuntu 22.04...

  • Manage your files in your Linux terminal with ranger | Opensource.com

    The most basic way to look at your files and folders is to use the commands ls and ll. But sometimes, I want to see not just the file metadata but also the contents of a file at a glance. For that, I use ranger.

    If you love working out of your console and using Vim or Vi, and you don’t want to leave your terminal for any reason, ranger is your new best friend. Ranger is a minimal file manager that allows you not only to navigate through the files but also to preview them. Ranger comes bundled with rifle, a file executor that can efficiently choose programs that work with a given file type.

  • How to Install Darktable on Fedora 36 Linux - LinuxCapable

    Darktable is a free and open-source photography application program and raw developer. Rather than being a raster graphics editor like Adobe Photoshop or GIMP, it comprises a subset of image editing operations specifically aimed at non-destructive raw image post-production. In addition to basic RAW conversion, Darktable is equipped with various tools for basic and advanced image editing.

    These include exposure correction, color management, white balance, image sharpening, noise reduction, perspective correction, and local retouching. As a result, Darktable is an incredibly powerful tool for photographers of all experience levels. Best of all, it is entirely free to download and use.

    In the following tutorial, you will learn how to install Darktable on Fedora 36 Linux workstation using the command line terminal.

massCode: A Free and Open-Source Code Snippet Manage

  • massCode: A Free and Open-Source Code Snippet Manager - It's FOSS

    If a tool makes things faster and efficient, that is a life-saver for many developers.

    While there are different services and platforms that try to make the coding experience quicker, you still have several other options to consider.

    For instance, a code snippet manager. With a snippet manager, you aim to save a section of code that you want to quickly access. It is more like assigning shortcuts to add the required code in your program.

    This is not a new concept, but the tools available for the job may not be entirely open-source.

    Fortunately, I stumbled upon a decent project that provides you with a free and open-source snippet manager, i.e., massCode.

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More in Tux Machines

This week in KDE: Major accessibility improvements

Though KDE’s goal-setting process is still ongoing, contributors have started working on Plasma accessibility in a major way! As of Plasma 5.26, all Plasma widgets will be fully compatible and usable with a screen reader, thanks to Fushan Wen with assistance from Harald Sitter! Read on

Today in Techrights

Security Leftovers

  • Chinese hackers backdoor chat app with new Linux, macOS malware [Ed: Nowadays the Microsofters in the media are calling "backdoors" things that are simply malware and one has to actually install; of course they like to blame "Linux" (because the user can add malware on top of it). Saying Linux isn't secure because it doesn't prevent you installing malware is like saying bridges are dangerous because you may commit suicide by jumping off them.]

    Versions of a cross-platform instant messenger application focused on the Chinese market known as 'MiMi' have been trojanized to deliver a new backdoor (dubbed rshell) that can be used to steal data from Linux and macOS systems.

  • Linux Threats: A Black Hat 2022 Hot Topic? (Video) [Ed: Aside from patent trolling, Blackberry reinvented itself as anti-Linux FUD source in recent years. They intentionally overlook back doors (e.g. Windows) and blame everything on "Linux".]

    There are usually a few cyberthreat trends that seem to emerge as important themes at each year’s Black Hat conference. And this year, the increase in Linux threats may be one of them.

  • #StopRansomware: Zeppelin Ransomware [Ed: Ransomware is predominantly a Microsoft Windows problem]

    CISA and the Federal Bureau of Investigation (FBI) have released a joint Cybersecurity Advisory (CSA), #StopRansomware: Zeppelin Ransomware, to provide information on Zeppelin Ransomware. Actors use Zeppelin Ransomware, a ransomware-as-a-service (RaaS), against a wide range of businesses and critical infrastructure organizations to encrypt victims’ files for financial gain.

  • CISA Adds Two Known Exploited Vulnerabilities to Catalog

    CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risk to the federal enterprise. Note: to view the newly added vulnerabilities in the catalog, click on the arrow in the "Date Added to Catalog" column, which will sort by descending dates. 

  • Cisco Releases Security Update for Multiple Products

    This vulnerability could allow a remote attacker to obtain sensitive information. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories page.

today's leftovers

  • Portable Computer Pre-History: Portable Before Laptops

    Portability is relative. When former Texas Instruments employees Rod Canion, Jim Harris and Bill Murto created a portable version of the IBM PC in 1982, it was a hulking device that weight 28 pounds and was roughly the size of a sewing machine. If you sold a desktop computer that weighed 28 pounds in 2018, you’d be laughed off the block. But the device, called the Compaq Portable, was revolutionary for its time and thrust the company that made it into the mainstream. It wasn’t too long before then that a portable computer was so embarrassingly large that you would probably break your legs if you used it as a laptop. Tonight’s Tedium ponders a time when portable computing meant something just a little bit bigger.

  • Fedora Sway OSTree Spin name

    The Fedora Sway SIG is working to create an immutable version of the Sway Spin (also work in progress) using OSTree. Those immutable spins of Fedora are becoming more common following Silverblue and Kinoite’s success. As it often happens, one of the most challenging things to do in creating something is to come up with clever names. This task is made even more complex by the relatively small amount of people active in this conversation. For this reason, during the last SIG meeting, it was decided to socialize this decision so that more people could suggest their ideas.

  • Output requirements.txt packages pinned to latest version
  • How to install OpenSCAD on a Chromebook

    Today we are looking at how to install OpenSCAD on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

  • Stupid SMP Tricks: A Review of Locking Engineering Principles and Hierarchy: paulmck — LiveJournal

    Daniel Vetter put together a pair of intriguing blog posts entitled Locking Engineering Principles and Locking Engineering Hierarchy. These appear to be an attempt to establish a set of GPU-wide or perhaps even driver-tree-wide concurrency coding conventions. Which would normally be none of my business. After all, to establish such conventions, Daniel needs to negotiate with the driver subsystem's developers and maintainers, and I am neither. Except that he did call me out on Twitter on this topic. So here I am, as promised, offering color commentary and the occasional suggestion for improvement, both of Daniel's proposal and of the kernel itself. The following sections review his two posts, and then summarize and amplify suggestions for improvement.

  • Ubuntu Unity 22.04 Quick overview #linux #UbuntuUnity - Invidious
  • FOSS Force Open Source News Quiz (8/12/22) - FOSS Force

    How closely did you follow the news about Linux and free and open source software this week? You can get an idea about how well informed you are (and have some fun in the process) by taking our Open Source News Quiz. Once you’re done, scroll down to the comments section and let us know how you did!