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today's leftovers

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  • Linux Pet Peeves: 5 Things That Really Grind my Gears
  • LHS Episode #293: Have Lawn Chair Will Broadcast

    Welcome to the 293rd installment of Linux in the Ham Shack! In the episode, the hosts tackle topics from upcoming RSGB contests on the new, hot FT-4 mode, the origin of "Mayday" as a distress call, magloop antennas, CoreCtrl, the vanishing floppy disk, DMR (Digital Mobile Radio) and much more. Thank you for tuning in and have a wonderful week.

  • DNS-over-HTTPS (DoH) Update – Detecting Managed Networks and User Choice

    At Mozilla, we are continuing to experiment with DNS-over-HTTPS (DoH), a new network protocol that encrypts Domain Name System (DNS) requests and responses. This post outlines a new study we will be conducting to gauge how many Firefox users in the United States are using parental controls or enterprise DNS configurations.

    With previous studies, we have tried to understand the performance impacts of DoH, and the results have been very promising. We found that DoH queries are typically the same speed or slightly slower than DNS queries, and in some cases can be significantly faster. Furthermore, we found that web pages that are hosted by Akamai–a content distribution network, or “CDN”–have similar performance when DoH is enabled. As such, DoH has the potential to improve user privacy on the internet without impeding user experience.

    Now that we’re satisfied with the performance of DoH, we are shifting our attention to how we will interact with existing DNS configurations that users have chosen.  For example, network operators often want to filter out various kinds of content. Parents and schools in particular may use “parental controls”, which block access to websites that are considered unsuitable for children. These controls may also block access to malware and phishing websites. DNS is commonly used to implement this kind of content filtering.

  • New CSS Features in Firefox 68

    Firefox 68 landed earlier this month with a bunch of CSS additions and changes. In this blog post we will take a look at some of the things you can expect to find, that might have been missed in earlier announcements.

  • How to Build a Career in Artificial Intelligence and Machine Learning?

    Math is just one of the skillsets that aspiring AI and ML professionals are expected to have. This is only one half the requirement, the other half is one’s expertise in programming languages, such as Java, C++, Python, and R.

    While C++ helps engineers increase the speed of their coding process, Python will help them understand and create complex algorithms. Python is also the go-to choice for ML developers, and also offers various libraries and frameworks to ease the process of creating an AI model. Similarly, R and Java help professionals understand stats and implement mappers, respectively. They are important considering the role of visualization in explaining AI.

More in Tux Machines

Open hardware smartphone PinePhone Pro starts to ship

Open-source-hardware vendor Pine64 has started shipping versions of its upgraded smartphone and new e-ink tablet – but so far, only to developers. There's more to affordable Arm hardware than the bare single-board computers (SBCs) from, for example, the Raspberry Pi Foundation, or TI's BeagleBone. Hong Kong vendor Pine64 started out with the crowd-funded $32 A64 SBC, but then started building this core design into laptops, smartphones, tablets, even smartwatches – with open designs that support multiple operating systems. Read more

Tender to optimize text layout performance for print and PDF export (#202112-01)

The Document Foundation (TDF) is the charitable entity behind the world’s leading free/libre open source (FLOSS) office suite LibreOffice. We are looking for an individual or company to optimize text layout performance for print and PDF export. The text layout performance as currently implemented in LibreOffice has lots of issues. All over the codebase text shaping is done over and over again, although it consumes quite some compute cycles. Text shaping is done each time for measuring the text, measuring parts of text, finding line breaks, drawing text on screen. Especially for more involved scripts than Latin, this is problematic. The above issues are especially problematic for printing or PDF export. The time to export a PDF or print a Latin text has doubled since the Harfbuzz implementation. Read more

Best Free and Open Source Alternatives to Apple Final Cut Pro

In 2020, Apple began the Apple silicon transition, using self-designed, 64-bit ARM-based Apple M1 processors on new Mac computers. Maybe it’s the perfect time to move away from the proprietary world of Apple, and embrace the open source Linux scene. Final Cut Pro is a commercial proprietary video editing application which lets users log and transfer video, edit, process the video, and output to a wide variety of formats. What are the best free and open source alternatives? Read more

Open source photo processing with Darktable

It's hard to say how good photographs happen. You have to be in the right place at just the right moment. You have to have a camera at the ready and an eye for composition. And that's just the part that happens in the camera. There's a whole other stage to great photography that many people don't think about. It used to happen with lights and chemicals in a darkroom, but with today's digital tools, post-production happens in darkroom software. One of the best photo processors is Darktable, and I wrote an intro to Darktable article back in 2016. It's been five years since that article, so I thought I'd revisit the application to write about one of its advanced features: masks. Darktable hasn't changed much since I originally wrote about it, which to my mind, is one of the hallmarks of a truly great application. A consistent interface and continued great performance is all one can ask of software, and Darktable remains familiar and powerful. If you're new to Darktable, read my introductory article to learn the basics. Read more