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Quick Roundup

Type Title Author Replies Last Postsort icon
Story Programming Leftovers Roy Schestowitz 27/10/2020 - 8:43pm
Story Flatkill and Latest Security Patches Roy Schestowitz 27/10/2020 - 8:33pm
Story Linux 5.10-rc1 Roy Schestowitz 7 27/10/2020 - 8:24pm
Story Snap speed improvements with new compression algorithm! Roy Schestowitz 1 27/10/2020 - 8:23pm
Story Python Programming Roy Schestowitz 27/10/2020 - 8:05pm
Story Chemtool: Open-source Chemical Structure drawing program Roy Schestowitz 27/10/2020 - 8:02pm
Story today's howtos Roy Schestowitz 27/10/2020 - 7:51pm
Story Cosmo Communicator’s Linux OS gains new cover screen features Roy Schestowitz 27/10/2020 - 7:44pm
Story Best Linux server distributions of 2020 Rianne Schestowitz 1 27/10/2020 - 7:35pm
Story today's leftovers Roy Schestowitz 27/10/2020 - 6:01pm

Samsung 980 PRO PCIe 4.0 NVMe SSD Linux Performance

Filed under
Graphics/Benchmarks

The Samsung 980 PRO PCIe 4.0 NVMe solid-state drives are now available from Internet retailers. For those wondering how these SSDs compare with EXT4 under Linux against other PCIe 4.0/3.0 drives, here are a variety of benchmarks.

While Samsung hasn't sent out NVMe SSDs for Linux testing at Phoronix, we continue purchasing the new models due to their high performance state and needing some additional drives for various systems in the lab. When the Samsung 980 PRO reached retail channels this month I picked up the Samsung 980 PRO 500GB and 1TB drives and ran a series of benchmarks on them prior to commissioning.

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My Open Source meltdown, and the rise of a star

Filed under
OSS

There comes a time when you feel that you don’t fit anywhere. Where your ideas, principles, motivation and struggles simply don’t align with anyone else. For years, I felt part of something that was larger than myself, had the motivation to use a huge part of my free time to contribute to projects and in several cases, make personal sacrifices to help others, and even envisioned a future for myself in places where I thought it was impossible.

It’s that struggle trying to find our place in this huge Open Source world what usually ends up in personal meltdown and professional burnout. It’s not a secret that as fast as technologies evolve, the faster we end up being obsolete, unless we dedicate most of our time to keep up to date on every break through.

I’m not the exception to this, and after being an active contributor for almost 15 years, and then have my “time off” to be a full time mom and employee, what happened in the Projects I used to Contribute left me feeling way far from my comfort zone. I’m grateful that most of the places where I’ve contributed has been because people asks for my help, and even after a long absence it was not different from before.

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What Linux needs to make it a better mobile desktop

Filed under
Linux

I have a bit of a confession to make. Although Linux is my operating system of choice on the desktop, I tend to skip over my open source-powered laptop in favor of either a MacBook Pro or Chromebook when I'm working beyond my desk. I know...blasphemy, right? I've reached a point in my career and life where I need the tools to be able to get my jobs done as efficiently as possible and without frustration or headache.

To be absolutely fair, primary reasons why I overlook my one Linux laptop are because it's too big and the keyboard is absolutely terrible. Given I am a writer by profession, a bad keyboard can be a deal-breaker. Once again, in favor of honesty, the 2016 MacBook Pro keyboard isn't much better. The "butterfly" keys are loud and way too prone to sticking. My 2015 Pixel was, at one point, an absolute dream machine, but the battery life is waning, and sometimes ChromeOS can be a bit flaky with the trackpad.

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Linux and open-source jobs are hotter than ever

Filed under
Linux
OSS

The Linux Foundation and , the leading online course company, released the 2020 Open Source Jobs Report on October 26. Once again, despite the COVID-19 pandemic, the demand for open-source technology skills is growing. 37% of hiring managers say they will hire more IT professionals in the next six months.

Specifically, 81% of hiring managers say hiring open source talent is a priority going forward. 56% of hiring managers plan to increase their hiring of open source pros in the next six months

Why? The answer to that is simple. As a recent Red Hat survey found, 86% of IT leaders said the most innovative companies are using open-source software, citing higher quality solutions, lower cost of ownership, improved security, and cloud-native capabilities as the top reasons for usage. So, even in these bad times, the demand for open-source savvy is higher than ever.

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Vote for the Debian GNU/Linux 11 “Bullseye” Desktop Artwork Now

Opened to submissions since early August, the artwork proposals for Debian GNU/Linux 11 “Bullseye,” the next major release of the popular Debian GNU/Linux operating system, has reached its deadline last week on October 15th, and now the community can vote for the winner.

Jonathan Carter announced today that it’s time for the Debian community to choose the desktop artwork to be used in Debian GNU/Linux 11 “Bullseye.” The review period for the final proposals starts today, October 26th, until November 9th, and winners will be unveiled in mid-November.

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Games: AntiMicroX in Linux, GOG, Life of Delta, 9 Monkeys of Shaolin, Gravity Ace

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Gaming

today's howtos

Filed under
HowTos
  • Installing Anbox on Linux to Run Android Apps – Linux Hint

    Anbox is an Android emulator that is available for any GNU/Linux operating system. An android emulator offers the environment necessary for installing and running Android apps. Such emulators do not offer the portability of an Android smartphone, but in exchange, more powerful hardware can be used.In this article, we will show you how to install Anbox on Linux.

  • How to set Timers, Alarms, and Stopwatches on CentOS 8

    In this article, I will show you how to set timers, alarms, and stopwatches on your CentOS 8 system. We will perform these actions using two different ways.

  • How to Install Docker on Raspberry Pi 4 – Linux Hint

    In this article, learn everything you need to know to get started with Docker and Docker Compose on Raspberry Pi 4.

  • How to Create Two Panel Layout in GNOME Shell Us – Linux Hint

    “Dash to Panel” is a GNOME Shell extension that can be installed in Ubuntu, Fedora and other GNOME Shell based Linux distributions. It aims to provide an alternative and much more customizable application dock / taskbar for managing pinned and running apps.

    Until recently, Dash to Panel was limited to a single panel that combined application menus, taskbar and system tray. However, a new update for Dash to Panel was released a couple of months back, allowing users to create two panels. Using this new option, you can now emulate the classic GNOME2 layout, featuring a two panel setup for managing system tray and taskbar. This article will explain how to create this two panel layout using Dash to Panel GNOME Shell extension.

  • How to Install LinuxFX Windowsfx 10 on VMware Workstation - SysAdmin

    This video tutorial shows how to install LinuxFX Windowsfx 10 on VMware Workstation step by step. This tutorial is also helpful to install LinuxFX Windowsfx 10 on physical computer or laptop hardware.

  • How to Install Heat Sinks on the Raspberry Pi – Linux Hint

    There is a relation between temperature and performance in every electronic device. The lower the temperature, the better the performance. The higher the temperature, the lower the performance. Within a certain boundary, this effect is visible in electronic devices like a Raspberry Pi. So, it is essential to keep the temperature of the Raspberry Pi within a certain boundary.

    Heat sinks are metal objects that are usually placed over the chips and processor of Raspberry Pi. The heat sinks help transfer the heat generated on the processors and other chips to the air. That way, the temperature of the processors and chips remain within a certain boundary that won’t hamper the productivity of the device.

    In this article, I am going to show you how to install heat sinks on the Raspberry Pi. So, let’s get started.

  • How to Create Hard Link and Soft Link in Linux? – Linux Hint

    In the Linux operating system, all the information about a file is stored in its respective inode. These inodes allow you to know all the metadata of a file. There is a concept of creating links to a file in Linux, just like we create pointers to the files in most of the popular programming languages. These links are basically of two types: the hard and the soft links. A hard link to a file is essentially an exact copy of the file, which means that a hard link to a file and the actual file will share the same inode. The biggest advantage of creating a hard link is that even if you accidentally delete the actual file, you will still be able to access its contents via its hard link.

    On the other hand, a soft link or a symbolic link works exactly like a pointer or a shortcut to a file. It is not an accurate copy of the file but only points to the original file. A soft link to a file and the actual file will have different inode values. Moreover, if you delete the actual file at any time, you will not be able to access its contents via its soft link. Today, we will share with you the methods of creating a hard link and soft link to a file in Linux.

    Note: We have used Linux Mint 20 for walking you through the methods shown below.

  • How to install VirtualBox on Ubuntu 20.04 Linux LTS - nixCraft

    Explains how to install the VirtualBox app on Ubuntu 20.04 LTS Linux for trying out new guest operating (Virtual Machines).

  • How to fix: Connection refused by port 22 Debian/Ubuntu – Linux Hint

    SSH provides a secure way to access and manage Linux servers. Sometimes while connecting to SSH servers, users often encounter “Connection refused” error by port 22. It happens because of several reasons like SSH service is not running, the port is blocked by the firewall, or the server is using a different port. It can also occur because of the IP conflict issue. In this article, we will discuss some of the solutions that you should try in order to fix the error.

  • How to clone an object in PHP – Linux Hint

    Object cloning can be very useful for object-oriented programming. In this tutorial, we show you how to clone an object in PHP.

  • How to clear command history in Linux – Linux Hint

    The bash history stores the records of all terminal commands which are executed by a user on the command-line Linux system. Using the history feature, you can easily locate the previously executed commands on your Linux system through the arrow keys navigation. In this article, how to clear command history in Linux is explained.

It’s Official: Linux Kernel 5.10 Will Be an LTS Release

Filed under
Linux

According to a recent tweet from renowned Linux kernel developer Greg Kroah-Hartman, the next LTS (Long Term Support) kernel release will be Linux 5.10, which recently entered development with a first Release Candidate (RC) milestone already available for public testing.

This means that Linux kernel 5.10, which will probably see the light of day near the Christmas 2020 holidays, will receive updates for at least two years. But, as it happened with previous LTS kernel series, support could be extended to up to six years, probably until December 2026.

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Ubuntu 21.04 Is Slated for Release on April 22, 2021

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Ubuntu

Following the Ubuntu 20.10 (Groovy Gorilla) release, there will be Ubuntu 21.04, whose codename will start with the word “Hirsute” followed by an animal name, which will probably be voted by the community soon. If you want to give the Ubuntu developers some suggestions on the H animal, check out this Ubuntu Discourse topic.

Until the codename is decided, development on Ubuntu 21.04 will kick off later this week on October 29th with the toolchain upload, based, of course, on the current release, Ubuntu 20.10. And, as its version number suggests, the final release will be expected in April (04) 2021.

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Linus Torvalds Announces First Linux Kernel 5.10 Release Candidate

Filed under
Linux

As expected, Linus Torvalds announced the first Release Candidate (RC) of the upcoming Linux 5.10 kernel series, which looks to be yet another big release with almost 14k commits, but not as big as Linux kernel 5.8 was. However, Linus Torvalds assures us that the merge window didn’t cause any unusual issues and things went “fairly smoothly.”

The most interesting change in Linux kernel 5.10 appears to be the removal of setf_fs() function, which was used to set the FS segment register of an x86 processor. For now, it was only removed from the x86, PowerPC, s390, and RISC-V architectures, with the rest to follow soon.

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Programming Leftovers

Filed under
Development

  • Graphics in Qt 6.0: QRhi, Qt Quick, Qt Quick 3D

    Last year we had a three part blog series about Qt's new approach to working with 3D graphics APIs and shading languages: part 1, part 2, part 3. For Qt Quick, an early, opt-in preview of the new rendering architecture was shipped in Qt 5.14, with some improvements in Qt 5.15. With the release of Qt 6.0 upcoming, let's see what has happened since Qt 5.15. It will not be possible to cover every detail of the graphics stack improvements for Qt Quick here, let alone dive into the vast amount of Qt Quick 3D features, many of which are new or improved in Qt 6.0. Rather, the aim is just to give an overview of what can be expected from the graphics stack perspective when Qt 6.0 ships later this year.

  • Multi-Layer Perceptron & Backpropagation - Implemented from scratch

    Writing a custom implementation of a popular algorithm can be compared to playing a musical standard. For as long as the code reflects upon the equations, the functionality remains unchanged. It is, indeed, just like playing from notes. However, it lets you master your tools and practice your ability to hear and think.

    In this post, we are going to re-play the classic Multi-Layer Perceptron. Most importantly, we will play the solo called backpropagation, which is, indeed, one of the machine-learning standards.

    As usual, we are going to show how the math translates into code. In other words, we will take the notes (equations) and play them using bare-bone numpy.

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  • PyDev of the Week: William Horton

    This week we welcome William Horton (@hortonhearsafoo) as our PyDev of the Week! William is a Backend Engineer at Compass and has spoken at several local Python conferences. He is a contributor to PyTorch and fastai.

    Let’s spend some time getting to know William better!

    Can you tell us a little about yourself (hobbies, education, etc):

    A little about myself: people might be surprised about my educational background–I didn’t study computer science. I have a bachelors in the social sciences. So by the time I finished undergrad, the most programming I had done was probably doing regressions in Stata to finish my thesis. I decided against grad school, and instead signed up for a coding bootcamp (App Academy) in NYC. The day I’m writing this, September 28, is actually 5 years to the day that I started at App Academy.

    Since then I’ve worked at a few different startups in NYC, across various industries: first investment banking, then online pharmacy, and now real estate. I’m currently a senior engineer on the AI Services team at Compass, working on machine learning solutions for our real estate agents and consumers.

    I like to spend my free time on a few different hobbies. I’m a competitive powerlifter, so I like to get into the gym a few times a week (although with the pandemic in NYC I didn’t lift for six months or so). I’ve actually found powerlifting to be a pretty common hobby among software engineers. Every time someone new joined my gym, it seemed like they came from a different startup. I love to play basketball. And I’m passionate about music: I’ve been a singer almost my whole life, and most recently was performing with an a cappella group in NYC. And in the last year I’ve picked up the guitar, after not touching it since I was a teenager, and that has been very fulfilling.

  • Malayalam fonts: Beyond Latin font metrics | Soliloquies

    This year’s annual international conference organized by TeX Users Group — TUG2020 — was held completely online due to the raging pandemic. In TUG2020, I have presented a talk on some important Malayalam typeface design factors and considerations.

    The idea and its articulation of the talk originated with K.H. Hussain, designer of well-known fonts such as Rachana, Meera, Meera Inimai, TNJoy etc. In a number of discussions that ensued, this idea was developed and later presented at TUG2020.

    Opening keynote to TUG2020 was delivered by Steve Matteson, about the design of Noto fonts. He mentioned that Noto was originally envisaged to be developed as a single font containing all Unicode scripts; but that was changed due to a couple of reasons: (1) huge size of resulting font and (2) the design of many South/South-East Asian characters do not fit well within its Latin font metrics.

  • Jérôme Gardou hired full-time to work on the memory manager

    I proudly announce that ReactOS Deutschland e.V. has hired Jérôme Gardou to work full-time on the ReactOS kernel’s memory manager for the next 3 months.

    Jérôme is a ReactOS veteran who has been contributing to the project since 2009. He has deep expertise into nearly all parts of ReactOS, ranging from various user-mode components (mostly related to low-level graphics) over their kernel-mode counterparts and down to bare-metal components like the kernel memory manager.

    During the upcoming months, Jérôme is going to overhaul the Mm (Memory Manager) and Cc (Cache Controller) components of the kernel. Both of them are core parts of the operating system, which are involved in every memory request and file operation. Improving them is expected to have a substantial effect on the overall stability and performance of ReactOS.

  • "Open-Source Windows" ReactOS To See Improved Memory Management - Phoronix

    ReactOS Deutschland e.V. has hired one of their long-time contributors to work full-time on the "open-source Windows" implementation's memory management for the next quarter.

    ReactOS is funding longtime contributor Jérôme Gardou to work full-time for the next three months on the open-source operating system's memory manager and cache controller code within its kernel.

    ReactOS hopes this overhaul to the MM/CS code will yield "a substantial effect on the overall stability and performance of ReactOS."

Corsair Power Supplies May Soon See Sensor Support Exposed Under Linux

Filed under
Linux
Hardware

Select high-end Corsair power supplies such as their RMi / HXi / AXi series are able to expose various sensor metrics via USB interface to the system. To date this sensor functionality has only worked under Windows with their proprietary software but now an open-source driver is seeking mainline inclusion for supporting these sensors under Linux.

Independent developer Wilken Gottwalt reverse-engineered the micro-controller found on the Corsair RMi/HXi/AXi power supplies and found it to be a proprietary but simple USB HID protocol. The controller exposes temperatures, current, and voltage levels along with other information like power uptime, power used, and power supply fan speed. This protocol on select models can also allow configuring the fan mode and mono/multi-rail voltage handling, and over-current protection.

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Also: Qualcomm QCS610 micro SoM and devkit to power AI and ML smart cameras

Games: Nonsense Soccer, Bound By Blades and Halloween at Humble Store

Filed under
Gaming
  • Nonsense Soccer is a highly amusing local multiplayer platformer-soccer-hybrid | GamingOnLinux

    After your next local multiplayer game? Nonsense Soccer is out in Early Access and it's already a huge amount of fun if you're the competitive type.

    Nonsense Soccer takes the classic sport and turns it into a side-on platformer-soccer-hybrid and the result is chaotic. Simple enough for anyone young and old to pick up their favourite gamepad and get kicking. It's actually been available for a little while already, with the new Steam release being their second major update.

  • Check out the fresh demo of Bound By Blades and take down some fierce monsters | GamingOnLinux

    Bound By Blades might look welcoming with the sweet colourful style and wonderful music, but this action-RPG gets quickly intense.

    Inspired somewhat by Monster Hunter, it originally tried going through Kickstarter to gather funds back in 2019. It failed but the development has continued anyway. The idea is that you go through increasingly tough battles, slaying big creatures in the unique four-corner combat arena where you run between four corners, dodging enemy attacks and unleash your own. After a year of work, the new demo is out now.

  • Humble Store has a big Halloween sale on right now | GamingOnLinux

    Prepare for Halloween with some new games? It's not like you're able to go out much with the COVID19 disease still raging on so staying in and playing games sound great to me.

    To help with that you can check out the Humble Store Halloween Sale, which has a number of big hits going on some pretty high discounts. While it's a Halloween sale, the majority of the titles oddly aren't really scary or much related to the event, still it's another good chance to build up your collection.

today's howtos

Filed under
HowTos
  • How To Install HAProxy on CentOS 8 - idroot

    In this tutorial, we will show you how to install HAProxy on your CentOS 8. For those of you who didn’t know, HAProxy is a free HTTP/TCP high availability load balancer and proxy server. It spreads requests among multiple servers to mitigate issues resulting from a single server failure. HA Proxy is used by a number of high-profile websites including GitHub, Bitbucket, Stack Overflow, Reddit, Tumblr, Twitter, and Tuenti, and is used in the OpsWorks product from Amazon Web Services.

    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 through the step by step installation HAProxy on a CentOS 8.

  • How To Install Python 3.9 on Ubuntu 20.04 – TecAdmin

    Python is an object-oriented, high-level programming language. It is an open source with a large community. Python is used as key languages among the top tech companies like Google.

    The Python 3.9 stable version has been released with several improvements and security updates. It included multiple new modules, improved existing modules and many other features.

    You can choose deadsnakes PPA for Python installation on Ubuntu 20.04 system.

    Use this tutorial to install Python 3.9 On Ubuntu 20.04 LTS Linux system via Apt-Get. You can also choose second method to install Python using source code.

  • YAML for beginners | Enable Sysadmin

    YAML Ain't a Markup Language (YAML), and as configuration formats go, it's easy on the eyes. It has an intuitive visual structure, and its logic is pretty simple: indented bullet points inherit properties of parent bullet points.

    But this apparent simplicity can be deceptive.

    It's easy (and misleading) to think of YAML as just a list of related values, no more complex than a shopping list. There is a heading and some items beneath it. The items below the heading relate directly to it, right? Well, you can test this theory by writing a little bit of valid YAML.

  • colorls – turbocharged alternative to ls

    The part of the operating system responsible for managing files and directories is called the file system. It organizes our data into files, which hold information, and directories (also called ‘folders’), which hold files or other directories. Several commands are frequently used to create, inspect, rename, and delete files and directories.

    One of these commands is ls, which prints the names of the files and directories in the current directory. A directory is really just a file. It’s a special file with special rules. The ls utility appeared in the first version of AT&T UNIX.

    Are you looking to liven up your shell? Want a bit more beauty on your terminal? colorls might be the ticket. colorls is a command-line utility that aims to improve on ls. color is written in Ruby.

Linux Patches Aim To Provide Fork'ing Brute Force Attack Mitigation

Filed under
Linux

Building off a set of "request for comments" patches from September, a set of patches were sent out on Sunday for providing brute force attack mitigation around the fork system call.

With attacks aiming to break Address Space Layout Randomization (ASLR) and similar attacks often relying on the fork system call in order to keep replicating the memory contents of the parent process, these patches aim to detect the behavior where fork is being exploited for these nefarious purposes.

This work is inspired in part by some patches carried by GrSecurity where a delay around the fork system call will be imposed if a child died from a fatal error. These patches propose collecting statistical data shared across all the processes with the same memory contents and analyzing the timing of any children processes crashing. When the code determines such an exploit may be underway leveraging fork, all of the processes using the same memory contents are killed to stop whatever malicious activity may be happening.

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Manage content using Pulp Debian

Filed under
OSS
Debian

Pulp is an open source repository management tool that helps you fetch, mirror, upload, and publish content within your organization. It can be used to manage various types of content such as software packages (from RPM packages to Ruby gems), as well as Ansible collections, container images, and even arbitrary files.

A typical workflow starts with fetching software packages from an existing repository (for example, http://mirror.centos.org/centos/7/os/x86_64/) or adding packages manually (for private packages built within your organization). Then Pulp helps you make arbitrary collections of software packages that are consumable by clients. With it, you...

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Wikiman: An Offline Search Engine For Arch Linux, Gentoo Wiki, And More

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OSS

Official documentation of applications or commands is always the best way to learn about them if you want to know every detail, which a blog or article can’t provide.

And in the Linux community, we can’t deny Arch Wiki is truly a go-to place for anything you want to learn about Linux. Besides Arch, there are other documentations as well which you may also want to prefer like Gentoo or FreeBSD.

So, whether you want to know about a command or jargon in Linux, you can refer to any of the Wiki sites available. But if you’re looking for something that can provide documentation not only of Arch Linux but also of Gentoo, FreeBSD, and others to read in an offline mode, meet Wikiman.

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Audiocasts/Shows: Open Source Security Podcast, GNU World Order, Linux in the Ham Shack and Linux Action News

Filed under
GNU
Linux
  • Episode 221 – Security, magic, and FaceID – Open Source Security

    Josh and Kurt talk about how to get started in security. It’s like the hero’s journey, but with security instead of magic. We then talk about what Webkit bringing Face ID and Touch ID to the browsers will mean.

  • GNU World Order 377

    Fedora Silverblue.

  • LHS Episode #375: No Deliveries | Linux in the Ham Shack

    Welcome to the 375th installment of Linux in the Ham Shack. In this short-topics episode, the hosts discuss the FCC relocating its offices, Logbook of the World, the new FST4 mode, Peertube, Hashicorp, RustyLinux, Ubuntu DragonOS, QRadioLink and much more. Thank you for tuning in and we hope you have a wonderful week.

  • Linux Action News 160

    Ubuntu 20.10 is out, with official Raspberry Pi 4 desktop support. We try it out and report back. And our thoughts on the youtube-dl takedown.

    Plus Edge is out for Linux, and PayPal gets bitcoin fever.

today's howtos

Filed under
HowTos
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Kernel: XFS and WiMAX in Linux

  • Prepare To Re-Format If You Are Using An Older XFS Filesystem - LinuxReviews

    Linux 5.10 brings several new features to the XFS filesystem. It solves the year 2038 problem, it supports metadata checksumming and it has better metadata verification. There's also a new configuration option: CONFIG_XFS_SUPPORT_V4. Older XFS filesystems using the v4 layout are now deprecated and there is no upgrade path beyond "backup and re-format". The Linux kernel will support older XFS v4 filesystems by default until 2025 and optional support will remain available until 2030. A new CONFIG_XFS_SUPPORT_V4 option in Linux 5.10. In case you want to.. still be able to mount existing XFS filesystems if/when you upgrade to Linux 5.10. We previously reported that XFS patches for Linux 5.10 delay the 2038 problem to 2486. That's not the only new feature Linux 5.10 brings to the XFS filesystem when it is released early December: It supports metadata checksumming, it has better built-in metadata verification and there is a new CONFIG_XFS_SUPPORT_V4 configuration option. Make sure you don't accidentally say N to that one if you have an older XFS filesystem you'd like to keep using if/when you upgrade your kernel.

  • The Linux Kernel Looks To Eventually Drop Support For WiMAX

    With the WiMAX 802.16 standard not being widely used outside of the Aeronautical Mobile Airport Communication System (AeroMACS) and usage in some developing nations, the Linux kernel may end up dropping its support for WiMAX but first there is a proposal to demote it to staging while seeing if any users remain. Longtime kernel developer Arnd Bergmann is proposing that the WiMAX Linux kernel infrastructure and the lone Intel 2400m driver be demoted from the networking subsystem to staging. In a future kernel release, the WiMAX support would be removed entirely if no active users are expressed. The Linux kernel WiMAX infrastructure is just used by the Intel 2400m driver for hardware with Sandy Bridge and prior, thus of limited relevance these days. That Intel WiMAX implementation doesn't support the frequencies that AeroMACS operates at and there are no other large known WiMAX deployments around the world making use of the frequencies supported by the 2400m implementation or users otherwise of this Linux kernel code.

  • Linux Is Dropping WiMAX Support - LinuxReviews

    It's no loss. There is a reason why you have probably never seen a WiMAX device or heard of it, WiMAX was a wireless last-mile Internet solution mostly used in a few rural areas in a limited number of countries between 2005 and 2010. There is very little use for it today so it is almost natural that Linux is phasing out support for WiMAX and the one WiMAX device it supports. WiMAX is a wireless protocol, much like IP by Avian Carriers except that it has less bandwidth and significantly lower latency. WiMAX (Worldwide Interoperability for Microwave Access) is a set of wireless standards that were used to provide last-mile Internet connectivity where DSL and other solutions were unavailable. WiMAX can work over long distances (up to 50 km), something WiFi can't. The initial design could provide around 25 megabit/s downstream, which was competitive when WiMAX base-stations and modems become widely available around 2005. That changed around 2010 when 4G/LTE become widely available. The WiMAX Forum, who maintains the WiMAX standard, tried staying relevant with a updated standard called WiMAX 2 in 2011. Some equipment for it was made, but it never became a thing. WiMAX was pretty much dead by the time WiMAX 2 arrived. The standard NetworkManager utility GNU/Linux distributions come with supported WiMAX until 2015. The Linux kernel still supports it and exactly one WiMAX device from Intel as of Linux 5.9, but that's about to change.

Fedora Elections and IBM/Red Hat Leftovers

  • Fedora 33 elections nominations now open

    Candidates may self-nominate. If you nominate someone else, please check with them to ensure that they are willing to be nominated before submitting their name. The steering bodies are currently selecting interview questions for the candidates. Nominees submit their questionnaire answers via a private Pagure issue. The Election Wrangler or their backup will publish the interviews to the Community Blog before the start of the voting period. Fedora Podcast episodes will be recorded and published as well. Please note that the interview is mandatory for all nominees. Nominees not having their interview ready by end of the Interview period (2020-11-19) will be disqualified and removed from the election.

  • 12 Tips for a migration and modernization project

    Sometimes migration/modernization projects are hard to execute because there are many technical challenges, like the structure of legacy code, customer environment, customer bureaucracy, network issues, and the most feared of all, production bugs. In this post I'm going to explain the 12-step migration / modernization procedure I follow as a consultant using a tip-based approach. I have some experience with this kind of situation because I’ve already passed by different kinds of projects with several kinds of problems. Over time you start to recognize patterns and get used to solving the hard problems. So, I thought: Wouldn't it be cool to create a procedure based on my experience, so that I can organize my daily work and give the transparency that the customers and managers want? To test this out, I did this for one customer in my hometown. They were facing a Red Hat JBoss EAP migration/modernization project. The results of the project were outstanding. The customer said they were even more satisfied with the transparency. The project manager seemed really comfortable knowing all about the details through the project and pleased with reducing the risk of unexpected news.

  • Awards roll call: June 2020 to October 2020

    We are nearly at the end of 2020 and while the pace continues to increase, we want to take a moment to acknowledge and celebrate some of the successes of Red Hat's people and their work. In the last four months, several Red Hatters and Red Hat products are being recognized by leading industry publications and organizations for efforts in driving innovation.

  • How developers can build the next generation of AI advertising technology – IBM Developer

    As we look across the most rapidly transforming industries like financial services, healthcare, retail – and now advertising, developers are putting open source technologies to work to deliver next-generation features. Our enterprise clients are looking for AI solutions that will scale with trust and transparency to solve business problems. At IBM®, I have the pleasure of focusing on equipping you, the developers, with the capabilities you need to meet the heightened expectations you face at work each day. We’re empowering open source developers to drive the critical transformation to AI in advertising. For instance, at the IBM Center for Open source Data and AI Technologies (CODAIT), enterprise developers can find open source starting points to tackle some of your thorniest challenges. We’re making it easy for developers to use and create open source AI models that can ultimately help brand marketers go deeper with AI to reach consumers more effectively.

Programming: Qt, PHP, JS and Bash

  • Qt 6 To Ship With Package Manager For Extra Libraries - Phoronix

    Adding to the list of changes coming with the Qt 6 toolkit, The Qt Company has now outlined their initial implementation of a package manager to provide additional Qt6 modules.

  • Qt for MCUs 1.5 released

    A new release of Qt for MCUs is now available in the Qt Installer. If you are new to Qt for MCUs, you can try it out here. Version 1.5 introduces new platform APIs for easy integration of Qt for MCUs on any microcontroller, along with an in-depth porting guide to get you going. Additionally, it includes a set of C++ APIs to load new images at runtime into your QML GUI. As with every release, 1.5 also includes API improvements and bug fixes, enhancing usability and stability.

  • KDDockWidgets v1.1 has been released! - KDAB - KDAB on Qt

    KDDockWidgets v1.1 is now available! Although I just wrote about v1.0 last month, the 1.1 release still managed to get a few big features.

  • KDAB TV celebrates its first year - KDAB

    A year ago KDAB started a YouTube channel dedicated to software development with Qt, C++ and 3D technologies like OpenGL. We talked to Sabine Faure, who is in charge of the program, about how it worked out so far and what we can expect in the future.

  • How to build a responsive contact form with PHP – Linux Hint

    Contact forms are commonly used in web applications because they allow the visitors of the website to communicate with the owner of the website. For most websites, responsive contact forms can be easily accessed from various types of devices such as desktops, laptops, tablets, and mobile phones. In this tutorial, a responsive contact form is implemented, and the submitted data is sent as an email using PHP.

  • Applying JavaScript’s setTimeout Method

    With the evolution of the internet, JavaScript has grown in popularity as a programming language due to its many useful methods. For example, many websites use JavaScript’s built-in setTimeout method to delay tasks. The setTimeout method has many use cases, and it can be used for animations, notifications, and functional execution delays.Because JavaScript is a single-threaded, translative language, we can perform only one task at a time. However, by using call stacks, we can delay the execution of code using the setTimeout method. In this article, we are going to introduce the setTimeout method and discuss how we can use it to improve our code.

  • Removing Characters from String in Bash – Linux Hint

    At times, you may need to remove characters from a string. Whatever the reason is, Linux provides you with various built-in, handy tools that allow you to remove characters from a string in Bash. This article shows you how to use those tools to remove characters from a string. [...] Sed is a powerful and handy utility used for editing streams of text. It is a non-interactive text editor that allows you to perform basic text manipulations on input streams. You can also use sed to remove unwanted characters from strings. For demonstration purposes, we will use a sample string and then pipe it to the sed command.

Python Programming

  • Dissecting a Web stack - The Digital Cat

    Having recently worked with young web developers who were exposed for the first time to proper production infrastructure, I received many questions about the various components that one can find in the architecture of a "Web service". These questions clearly expressed the confusion (and sometimes the frustration) of developers who understand how to create endpoints in a high-level language such as Node.js or Python, but were never introduced to the complexity of what happens between the user's browser and their framework of choice. Most of the times they don't know why the framework itself is there in the first place. The challenge is clear if we just list (in random order), some of the words we use when we discuss (Python) Web development: HTTP, cookies, web server, Websockets, FTP, multi-threaded, reverse proxy, Django, nginx, static files, POST, certificates, framework, Flask, SSL, GET, WSGI, session management, TLS, load balancing, Apache. In this post, I want to review all the words mentioned above (and a couple more) trying to build a production-ready web service from the ground up. I hope this might help young developers to get the whole picture and to make sense of these "obscure" names that senior developers like me tend to drop in everyday conversations (sometimes arguably out of turn). As the focus of the post is the global architecture and the reasons behind the presence of specific components, the example service I will use will be a basic HTML web page. The reference language will be Python but the overall discussion applies to any language or framework. My approach will be that of first stating the rationale and then implementing a possible solution. After this, I will point out missing pieces or unresolved issues and move on with the next layer. At the end of the process, the reader should have a clear picture of why each component has been added to the system.

  • Introducing AutoScraper: A Smart, Fast and Lightweight Web Scraper For Python | Codementor

    In the last few years, web scraping has been one of my day to day and frequently needed tasks. I was wondering if I can make it smart and automatic to save lots of time. So I made AutoScraper!

  • django-render-block 0.8 (and 0.8.1) released!

    A couple of weeks ago I released version 0.8 of django-render-block, this was followed up with a 0.8.1 to fix a regression. django-render-block is a small library that allows you render a specific block from a Django (or Jinja) template, this is frequently used for emails when you want multiple pieces of an email together in a single template (e.g. the subject, HTML body, and text body), but they need to be rendered separately before sending.

  • Pyston v2: 20% faster Python | The Pyston Blog

    We’re very excited to release Pyston v2, a faster and highly compatible implementation of the Python programming language. Version 2 is 20% faster than stock Python 3.8 on our macrobenchmarks. More importantly, it is likely to be faster on your code. Pyston v2 can reduce server costs, reduce user latencies, and improve developer productivity. Pyston v2 is easy to deploy, so if you’re looking for better Python performance, we encourage you to take five minutes and try Pyston. Doing so is one of the easiest ways to speed up your project.

  • Pyston v2 Released As ~20% Faster Than Python 3.8 - Phoronix

    Version 2.0 of Pyston is now available, the Python implementation originally started by Dropbox that builds on LLVM JIT for offering faster Python performance. Pyston developers believe their new release is about 20% faster than the standard Python 3.8 and should be faster for most Python code-bases.

  • Python int to string – Linux Hint

    Python is one of the universal languages that support various types of data types like integer, decimal point number, string, and complex number. We can convert one type of data type to another data type in Python. This data type conversion process is called typecasting. In Python, an integer value can easily be converted into a string by using the str() function. The str() function takes the integer value as a parameter and converts it into the string. The conversion of int to string is not only limited to the str() function. There are various other means of int to string conversion. This article explains the int to string conversion with various methods.

  • Python isinstance() Function – Linux Hint

    Python is one of the best and efficient high-level programming languages. It has a very straightforward and simple syntax. It has very built-in modules and functions that help us to perform the basic tasks efficiently. The Python isinstance() function evaluates either the given object is an instance of the specified class or not.