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November 2018

Debian and Ubuntu Leftovers

Filed under
Debian
Ubuntu
  • glBSP

    I was surprised to see glBSP come up for adoption; I found out when I was installing something entirely unrelated, thanks to the how-can-i-help package. (This package is a great idea: it tells you about packages you have installed which are in danger of being removed from Debian, or have other interesting bugs filed against them. Give it a go!) glBSP is a dependency on another of my packages, WadC, so I adopted it fairly urgently.

    glBSP is a node-building tool for Doom maps. A Map in Doom is defined in a handful of different lumps of data. The top-level, canonical data structures are relatively simple: THINGS is a list of things (type, coordinates, angle facing); VERTEXES is a list of points for geometry (X/Y coordinates); SECTORS define regions (light level, floor height and texture,…), etc. Map authoring tools can build these lumps of data relatively easily. (I've done it myself: I generate them all in liquorice, that I should write more about one day.)

  • How to Connect Your Android Phone to Ubuntu Wirelessly

    Easy: all you need is a modern Linux distro like Ubuntu and an open-source GNOME Shell extension called ‘GSConnect‘.

    GSConnect is a totally free, feature packed add-on that lets you connect your Android phone to Ubuntu over a wireless network, no USB cable required!

    In this post we talk about the features the extension offers, and show you how to install GSConnect on Ubuntu 18.04 LTS and above so that you can try it out for yourself!

Security: FSB and NSA in Linux, HTTPS is Not Enough, Microsoft Back Doors and Exploits (e.g. WannaCry), 5G China Scare

Filed under
Security
  • Linux 4.21 Positioned To Pickup Streebog Crypto Support Developed By Russia's FSB

    In addition to Linux 4.21 set to land Adiantum as the crypto algorithm backed by Google following the company's falling out with the NSA's Speck crypto for low-end data encryption, Streebog is also set to be introduced as a cryptographic hash function developed in large part by the Russian government.

    The Linux kernel patches introducing the Streebog code were posted back in October for review. Those patches were spearheaded by a developer from Russia's ALT Linux distribution. Those patches are now queued into the crypto subsystem's development branch ahead of the Linux 4.21 kernel.

  • HTTPS Is Almost Everywhere. So Why Isn’t the Internet Secure Now?

    Chrome used to display the word “Secure” and a green padlock in the address bar when you were visiting a website using HTTPS. Modern versions of Chrome simple have a little gray lock icon here, without the word “Secure.”

    That’s partly because HTTPS is now considered the new baseline standard. Everything should be secure by default, so Chrome only warns you that a connection is “Not Secure” when you’re accessing a site over an HTTP connection.

    However, the word “Secure” is also gone because it was a little misleading. It sounds like Chrome is vouching for the contents of the site as if everything on this page is “secure.” But that’s not true at all. A “secure” HTTPS site could be filled with malware or be a fake phishing site.

  • WannaCry: One year later, is the world ready for another major attack? [Ed: Somehow that neglects to mention that this was largely the result of a collusion involving Microsoft and the NSA]
  • UK gov report to raise fresh security concerns over Huawei's 5G kit

Linux Apps on Chromebooks Getting Google Drive, Play Store File Access Support

Filed under
GNU
Linux
Google

Linux apps on Chromebooks are slowly but surely gaining their legs. Sure, we’re still missing a few things here and there, but progress on this front is moving along at a nice, swift pace and today we are happy to be talking about another progression that will help the overall user experience in an important and meaningful way.

Read more

GNU: GCC and Wget Release

Filed under
GNU
  • GCC Compiler Picks Up New Option To Help With Live Kernel Patching

    Adding to the list of new features for GCC 9 due out early next year is a new -flive-patching= flag to help with scenarios like live Linux kernel patching.

    This GCC live-patching support addition was done by Oracle and is about controlling the optimizations/behavior when wanting to compile code for the context of applying it as a live patch. In particular, for Linux kernel live patching to avoid system reboots when applying security/maintenance updates. With Oracle the focus is on their own Ksplice live kernel patching to avoid reboots but this work should also be relevant to the likes of SUSE's kGraft and Red Hat's Kpatch kernel live patching.

  • GNU Wget 1.20 Released

    Noteworthy Changes in this release:
    Add new option `--retry-on-host-error` to treat local errors as transient and hence Wget will retry to download the file after a brief waiting period.
    Fixed multiple potential resource leaks as found by static analysis
    Wget will now not create an empty wget-log file when running with -q and -b switches together
    When compiled using the GnuTLS >= 3.6.3, Wget now has support for TLSv1.3
    Now there is support for using libpcre2 for regex pattern matching
    When downloading over FTP recursively, one can now use the

GameShell Linux-based Console Upgraded: New Board, 1GB Ram, HDMI Port

Filed under
GNU
Linux
Gaming
Gadgets

About a year ago, Clockwork put up a Linux-powered handheld gaming console called GameShell on Kickstarter website.

This portable retro console is shipped as a DIY kit that can let you play games, learn to code and also teach you a little about how the hardware works. And the best part is that it lets you upgrade the system without replacing it.

Read more

5 Reasons Why Linux OS Is A Hot Favorite Among Coders

Filed under
Development
GNU
Linux

Operating systems have come a long way in the past few decades. What was once dominated by Microsoft Windows or Apple MacOS is no longer the norm these days. After Y2K, a variety of OS have come into play as a result of people exploring the computing environment. One particular series of OS that has caught attention of the users is Linux. Although it was introduced way back in 1991, it gained popularity over time due to its decentralised development approach and a solid support from the software developer community as well.

Here we explore some reasons why Linux made it to the top among developers and tech enthusiasts.

Read more

Programming: Python, C++, Java and More

Filed under
Development
  • Amsterdam Python meetup, november 2018

    My summary of the 28 november python meetup at the Byte office. I myself also gave a talk (about cookiecutter) but I obviously haven't made a summary of that.

  • Trip Report: C++ Standards Meeting in San Diego, November 2018

    A few weeks ago I attended a meeting of the ISO C++ Standards Committee (also known as WG21) in San Diego, California. This was the third committee meeting in 2018; you can find my reports on preceding meetings here (June 2018, Rapperswil) and here (March 2018, Jacksonville), and earlier ones linked from those. These reports, particularly the Rapperswil one, provide useful context for this post.

    This meeting broke records (by a significant margin) for both attendance (~180 people) and number of proposals submitted (~270). I think several factors contributed to this. First, the meeting was in California, for the first time in the five years that I’ve been attending meetings, thus making it easier to attend for Bay Area techies who weren’t up for farther travels. Second, we are at the phase of the C++20 cycle where the door is closing for new proposals targeting to C++20, so for people wanting to get features into C++20, it was now or never. Finally, there has been a general trend of growing interest in participation in C++ standardization, and thus attendance has been rising even independently of other factors.

    This meeting was heavily focused on C++20. As discussed in the committee’s standardization schedule document, this was the last meeting to hear new proposals targeting C++20, and the last meeting for language features with significant library impact to gain design approval. A secondary focus was on in-flight Technical Specifications, such as Library Fundamentals v3.

    To accommodate the unprecedented volume of new proposals, there has also been a procedural change at this meeting. Two new subgroups were formed: Evolution Incubator (“EWGI”) and Library Evolution Incubator (“LEWGI”), which would look at new proposals for language and library changes (respectively) before forwarding them to the Evolution or Library Evolution Working Groups (EWG and LEWG). The main purpose of the incubators is to reduce the workload on the main Evolution groups by pre-filtering proposals that need additional work before being productively reviewed by those groups. A secondary benefit was to allow the attendees to be spread out across more groups, as otherwise EWG and LEWG would have likely exceeded their room capacities.

  • The Future of OpenJDK at Red Hat

    With the release of Java 11, the transition of Java into an OpenJDK-first project is finally complete. The days of most Java installations using the proprietary OracleJDK binaries are at an end. This increased focus on Open and Free Java naturally brings the contributions of companies other than Oracle into greater prominence. InfoQ recently spoke with Rich Sharples, Senior Director of Product Management for Middleware at Red Hat, to discuss OpenJDK and Red Hat's involvement with it.

  • PyBites: 3 Cool Things You Can do With the dateutil Module
  • Subtleties of Python

    A good software engineer understands how crucial attention to detail is; minute details, if overlooked, can make a world of difference between a working unit and a disaster. That’s why writing clean code matters a lot—and clean code isn’t just about neat indentation and formatting; it’s about paying attention to those details that can affect production.

    In this article, you’ll see a couple of short cases of problematic code in Python and how they can be improved. Please note that these are just examples and in no way must you interpret them to universally apply for real-world problems.

  • A Tale of Two Commits

    I’ve discussed and linked to articles about the advantages of splitting patches into small pieces to the point that I don’t feel the need to reiterate it here. This is a common approach at Mozilla, especially (but not just) in Firefox engineering, something the Engineering Workflow group is always keeping in mind when planning changes and improvements to tools and processes.

    Many Mozilla engineers have a particular approach to working with small diffs, something, I’ve realized over time, that seems to be pretty uncommon in the industry: the stacking of commits together in a logical series that solves a particular problem or implements a specific feature. These commits are generally authored, reviewed, updated, and even landed as a set. They tell a complete story; indeed, you could view this process as similar to writing a novel: the book is written, edited, and published as a complete unit.

  • Common architectural elements for modern integration architectures

    In Part 1 of this series, we explored a use case around integration being the key to transforming your customer experience.

    I laid out how I’ve approached the use case and how I’ve used successful customer portfolio solutions as the basis for researching a generic architectural blueprint. The only thing left to cover was the order in which you’ll be led through the blueprint details.

Free-floating Ubuntu social bot chats up astronauts on International Space Station

Filed under
Ubuntu

An Ubuntu-powered social robot called CIMON (Crew Interactive Mobile CompaniON) has begun work on the International Space Station. The self-navigating bot recognizes faces and answers questions relayed to a ground-based IBM Watson computer.

A social robot with an Ubuntu OS has launched on the International Space Station (ISS) to answer astronauts’ questions via voice and an 8-inch display. On Nov. 15, German astronaut Alexander Gerst demonstrated the CIMON (Crew Interactive Mobile CompaniON) robot in action, showing off its facial recognition, voice assistance, and ability to autonomously navigate in the weightless environment of the ISS. CIMON can also play music, document results of experiments, or search for objects using its image recognition capability.

Read more

Graphics: Sway 1.0 Closer, AMDGPU FreeSync / Adaptive-Sync Update

Filed under
Graphics/Benchmarks
  • Sway 1.0 Beta 2 Rolls Out For Feature-Rich i3-Compatible Wayland Compositor

    The release of Sway 1.0 as the popular i3-compatible Wayland compositor is one step closer with the latest beta update.

    Sway 1.0 Beta 2 offers various i3 compatibility updates, implements the Wayland presentation-time protocol, introduces multi-seat support to the Swaylock, supports additional i3 window types, and has other usability enhancements while for the most part is made up of bug fixes. Bug fixes for Sway 1.0 Beta 2 range from XWayland fixes, Swaybar output hotplug handling, and a variety of other corrections.

  • AMDGPU FreeSync / Adaptive-Sync Is Set To Land For Linux 4.21

    AMD developers have a miraculous Christmas present for their open-source Linux users, particularly Linux gamers with FreeSync/Adaptive-Sync displays... This last major feature missing from AMDGPU DRM driver that's long been sought after is finally set to land in the mainline Linux kernel!

    It has been a long time coming but the FreeSync support (or VESA Adaptive-Sync / HDMI VRR) is finally set to be merged with the upcoming Linux 4.21 kernel cycle. FreeSync/Adaptive-Sync/VRR as a reminder is about adjusting monitor refresh rates dynamically without any mode change to reduce stuttering, tearing, and input lag. Previously this support was just available for Radeon Linux users via the AMDGPU-PRO components and not from the standard Linux kernel driver.

More in Tux Machines

DragonFlyBSD's HAMMER2 Gets Basic FSCK Support

While the Copy-on-Write file-system shouldn't technically require fsck support, basic file-system consistency checking support has been implemented anyhow. In the initial implementation, the fsck code for HAMMER2 cannot repair any damaged file-system but can only verify that the file-system is intact. Read more

A Look at KDE Plasma 5.17 Beta and Report From Akademy 2019

  • KDE Plasma 5.17 Beta Run Through

    In this video, we look at KDE Plasma 5.17 Beta, enjoy!

  • TSDgeos' blog: Akademy 2019

    It's 10 days already since Akademy 2019 finished and I'm already missing it :/ Akademy is a week-long action-packed conference, talks, BoFs, daytrip, dinner with old and new friends, it's all a great combination and shows how amazing KDE (yes, the community, that's our name) is. On the talks side i missed some that i wanted to attend because i had to extend my time at the registration booth helping fellow KDE people that had forgotten to register (yes, our setup could be a bit easier, doesn't help that you have to register for talks, for travel support and for the actual conference in three different places), but I am not complaining, you get to interact with lots of people in the registration desk, it's a good way to meet people you may not have met otherwise, so please make sure you volunteer next year ;) One of the talks i want to highlight is Dan VrĂĄtil's talk about C++, I agree with him that we could do much better in making our APIs more expressive using the power of "modern" C++ (when do we stop it calling modern?). It's a pity that the slides are not up so you'll have to live with KĂŠvin Ottens sketch of it for now.

Programming Leftovers

  • DevNation Live: Event-driven business automation powered by cloud-native Java

    DevNation Live tech talks are hosted by the Red Hat technologists who create our products. These sessions include real solutions and code and sample projects to help you get started. In this talk, presented by Red Hat’s Maciej Swiderski, Principal Software Engineer, and Burr Sutter, Chief Developer Evangelist, you’ll learn about event-driven business automation using Kogito, Quarkus, and more. Kogito is a new Java toolkit, based on Drools and jBPM, that’s made to bring rules and processes to the Quarkus world. This DevNation Live presentation shows how Kogito can be used to build cloud-ready, event-driven business applications, and it includes a demo of implementing the business logic of a complex domain. Kogito itself is defined as a cloud-native business automation toolkit that helps you to build intelligent applications. It’s way more than just a business process or a single business rule—it’s a bunch of business rules, and it’s based on battle-tested capabilities.

  • NVIDIA Video Codec SDK 9.1 Brings CUDA CUStream Support, Other Encoder Improvements

    Following the February release of Video Codec SDK 9.0, NVIDIA recently did a quiet release of the Video Codec SDK 9.1 update that furthers along this cross-platform video encode/decode library.

  • Mike Driscoll: PyDev of the Week: Peter Farrell

    This week we welcome Peter Farrell (@hackingmath) as our PyDev of the Week! Peter is the author Math Adventures with Python and two other math related Python books. You can learn more about Peter by visiting his website.

  • Mutation testing by example: How to leverage failure
  • Reuven Lerner: Looking for Python podcast co-hosts

    As you might know, I’m a panelist on the weekly “Freelancers Show” podcast, which talks about the business of freelancing. The good news: The same company that’s behind the Freelancers Show, Devchat.tv, is putting together a weekly podcast about Python, and I’m going to be on that, too! We’ll have a combination of discussion, interviews with interesting people in the Python community, and (friendly) debates over the current and future state of the language.

  • Getting started with data science using Python

    Data science is an exciting new field in computing that's built around analyzing, visualizing, correlating, and interpreting the boundless amounts of information our computers are collecting about the world. Of course, calling it a "new" field is a little disingenuous because the discipline is a derivative of statistics, data analysis, and plain old obsessive scientific observation. But data science is a formalized branch of these disciplines, with processes and tools all its own, and it can be broadly applied across disciplines (such as visual effects) that had never produced big dumps of unmanageable data before. Data science is a new opportunity to take a fresh look at data from oceanography, meteorology, geography, cartography, biology, medicine and health, and entertainment industries and gain a better understanding of patterns, influences, and causality. Like other big and seemingly all-inclusive fields, it can be intimidating to know where to start exploring data science. There are a lot of resources out there to help data scientists use their favorite programming languages to accomplish their goals, and that includes one of the most popular programming languages out there: Python. Using the Pandas, Matplotlib, and Seaborn libraries, you can learn the basic toolset of data science.

Excellent Utilities: Liquid Prompt – adaptive prompt for Bash & Zsh

This is a new series highlighting best-of-breed utilities. We’re covering a wide range of utilities including tools that boost your productivity, help you manage your workflow, and lots more besides. There’s a complete list of the tools in this series in the Summary section. The Command Line Interface (CLI) is a way of interacting with your computer. And if you ever want to harness all the power of Linux, it’s highly recommended to master it. It’s true the CLI is often perceived as a barrier for users migrating to Linux, particularly if they’re grown up using GUI software exclusively. While Linux rarely forces anyone to use the CLI, some tasks are better suited to this method of interaction, offering inducements like superior scripting opportunities, remote access, and being far more frugal with a computer’s resources. For anyone spending time at the CLI, they’ll rely on the shell prompt. My favorite shell is Bash. By default, the configuration for Bash on popular distributions identifies the user name, hostname, and the current working directory. All essential information. But with Liquid Prompt you can display additional information such as battery status, CPU temperature, and much more. Read more