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September 2017

DragonFlyBSD 5.0 Branched As The Next Release

Filed under
BSD

We've known a new DragonFlyBSD release was being worked on for release soon. That release has now been branched, the first release candidate tagged, and it's being marked as version 5.0.

Succeeding DragonFlyBSD 4.8 will be DragonFlyBSD 5.0. 5.0.0-rc1 was tagged on Friday night while the code is branched for the 5.0 release undertaking. On Git master is now the DragonFly 5.1 development version.

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Our Last Time Benchmarking Ubuntu 32-bit vs. 64-bit

Filed under
Graphics/Benchmarks

Over the years we have looked at the 32-bit vs. 64-bit x86 Linux performance for curiosity sake, showing how x86_64 can be much faster than i686, and just providing these values for a reference look and if for some reason are still running 32-bit Linux software including the OS while the hardware is 64-bit capable. For this final benchmarking look are fresh numbers when doing a clean install of Ubuntu 17.10 32-bit compared to Ubuntu 17.10 64-bit.

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today's leftovers

Filed under
Misc
  • Linux To Get "Extended LTS" Releases, Kernel Support For Six Years

    Linux right now offers a "Long Term Support" release where support for the kernel branch is maintained for two years, which is nice compared to kernel releases usually dropping maintenance around N+1.1 after the release. But moving forward, Linux LTS releases will now be maintained for six years.

    The two-year Linux LTS cycle is suitable for many users, but one case where it's not long enough is the lifecycle of a smartphone and the status quo is many Android phones out there are still running on Linux kernels no longer receiving bug/security fixes. Via Google's Project Treble and cooperation with the upstream Linux community, that two year process is now being extended to six years.

  • Mesa 17.2.2 Set For Release Next Week

    For those not comfortable riding Mesa Git, Mesa 17.2.2 is set to be released early next week as the newest stable update for the open-source 3D graphics driver stack.

    Point release manager Juan Suarez Romero of Igalia is planning on releasing Mesa 17.2.2 next Monday, 2 October, if all goes well. So far there are 43 patches queued and a handful of more patches still possibly landing. Friday marked the release candidate for this newest point release.

  • SELinux (Security-Enhanced Linux)

    SELinux, or Security-Enhanced Linux, is a part of the Linux security kernel that acts as a protective agent on servers. In the Linux kernel, SELinux relies on mandatory access controls (MAC) that restrict users to rules and policies set by the system administrator. MAC is a higher level of access control than the standard discretionary access control (DAC), and prevents security breaches in the system by only processing necessary files that the administrator pre-approves.

  • Alpine Linux

    Alpine Linux is a small, security-oriented, lightweight Linux distribution based on the musl libc library and BusyBox utilities platform instead of GNU. It operates on bare-metal hardware, in a VM or even on a Raspberry Pi. The distribution is noncommercial and evolved for embedded and server-based workloads, although desktop OS use is possible.

  • Red Hat Inc. Is on a Roll
  • Attend a Fedora Women Day 2017 event

    Fedora Women Day (FWD) is a worldwide series of events initiated by the Fedora Diversity Team. The events are dedicated to female contributors of the Fedora Project. During this day of celebration, local communities gather to present the accomplishments of women in the Fedora Project and thank them. FWD is also a great chance to promote the participation of more women and raise awareness about the gender gap in tech communities. Furthermore, FWD and events like it show the importance of diversity in open source projects such as Fedora.

  • Keep the Trump administration out of your private life with Tails 3.2 Linux distribution

    As we learned from the great patriot Edward Snowden, the US government can and will spy on you. Not caring about that invasion of privacy, and dismissing it with the flawed statement of "I have nothing to hide," is flat out idiotic. Regardless of what you do on your computer, or on the internet, your privacy is sacred, and quite frankly, it was earned by our forefathers that fought for our freedoms.

    If you do care about your privacy, and you want to keep the heavy-handed Trump administration or other government agency out of your private business, please know you aren't powerless. There is a specific Linux-based operating system that aims to protect your privacy from corrupt governments and other evildoers, such as hackers and spies. Called "Tails," it always runs in a live environment from a DVD or flash drive. In other words, especially with an optical disk, it will help to hide your footprints. Today, version 3.2 sees release.

Servers: Kubernetes 1.8, Blockchain, Microservices, Clear Linux

Filed under
Server
  • Kubernetes 1.8 Improves Security With Role-Based Access Control

    Version 1.8 of the open-source Kubernetes container orchestration and management platform is now available, providing features that improve both scalability and security.

    Kubernetes 1.8, released on Sept. 28, is the third major milestone release for Kubernetes in 2017 and follows the 1.7 update that debuted in June. The Kubernetes project was originally started by Google and has been managed as a Cloud Native Computing Foundation (CNCF) effort since July 2015.

  • Blockchain skills: Don't Try to Block the Chain

    Blockchain technology is on the rise. Some might presume Bitcoin is the reason behind it. While it was developed for the digital currency, developers are finding other uses of blockchain technology. Most prominently is the open source project Ethereum. The use of Ethereum has brought about smart contracts, which have proven to be quite functional within the financial industry. With its decentralized structure, blockchain technology could be a paradigm shift with vast boundaries.

  • DevOps Jobs: 5 must-reads for job seekers, hiring managers
  • Tools and Practices for Documenting Microservices
  • Clear Linux Can Run On AMD's EPYC Platform With Competitive Performance

    As part of our ongoing AMD EPYC Linux benchmarking, I've been working this week on a cross-distribution GNU/Linux comparison followed by some BSD testing... Of course, I couldn't help but to see if Intel's performance-oriented Clear Linux distribution would run on the AMD EPYC server.

OSS: Code for NFV (OPNFV), Code for '3D Selfies', Code for Beeline and More

Filed under
OSS
  • Network Functions Virtualization: All Roads Lead to OPNFV

    Previously in our discussion of the Understanding OPNFV book, we provided an introduction to network functions virtualization (NFV) and explored the role of OPNFV in network transformation. We continue our series with a look at chapters 4 and 5, which provide a comprehensive description of the various open source NFV projects integrated by OPNFV and the carrier grade features contributed back to these upstream projects by the community. In this article, we cover these two topics briefly and provide some related excerpts from the Understanding OPNFV book.

  • 3D selfies? What could possibly go wrong?

    The good news, then, is that this particular work only works on faces.

    The bad news? The code's on GitHub under an MIT licence.

  • Code for Beeline crowdsourcing transport app to be made open source

    The code for crowdsourcing transport app Beeline will be made open source from October onwards, in a move that could benefit app developers looking to develop new mobility solutions.

    [...]

    Announcing GovTech's plans to make the code open source on Saturday (Sep 30), the director of the agency's data science division, Liu Feng-Yuan, likened the move to sharing the "recipe" as to how the Government built the Beeline technology.

  • Facebook re-licenses React.js, a new open source tool from Oath, and more news

    Recently, Facebook drew the ire of the open source community by licensing React.js (a widely-used JavaScript library) under a so-called BSD + Patents license. That license drew fears of patent litigation and React.js was rejected by the Apache Foundation and WordPress decided to ditch it. As a result of the backlash, the social media giant has backtracked and re-licensed the library.

  • Syracuse Unbound releases second open source publication: CNY books and authors

    This is the second publication from the imprint, which offers open-access to the text through a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License, which means that the book is available for anyone to download and read for free. At last count the book has been downloaded 1,250 times  in 18 countries.

Security: Updates, EFI Mess, Clarence Birdseye

Filed under
Security
  • Security updates for Friday
  • An alarming number of patched Macs remain vulnerable to stealthy firmware hacks

    An alarming number of Macs remain vulnerable to known exploits that completely undermine their security and are almost impossible to detect or fix even after receiving all security updates available from Apple, a comprehensive study released Friday has concluded.

  • What Clarence Birdseye can teach us about container security

    Clarence Birdseye is generally considered to be the founder of the modern frozen food industry. In 1925, after a couple of false starts, he moved his General Seafood Corporation to Gloucester, Massachusetts. There, he used his newest invention, the double belt freezer, to freeze fish quickly using a pair of brine-cooled stainless steel belts. This and other Birdseye innovations centered on the idea that flash-freezing meant that only small ice crystals could form, and therefore cell membranes were not damaged. Over time, these techniques were applied to a wide range of food — including the ubiquitous frozen peas.

Graphics: Radeon, Intel, Mesa

Filed under
Graphics/Benchmarks

More in Tux Machines

today's leftovers

  • Learn more about distributed databases with ShardingSphere

    Apache ShardingSphere is an open source distributed database, plus an ecosystem users and developers need for their database to provide a customized and cloud-native experience. In the three years since it joined the Apache Foundation, the ShardingSphere core team has worked hard with the community to create an open source, robust, and distributed database and a supporting ecosystem. ShardingSphere doesn't quite fit into the usual industry mold of a simple distributed database middleware solution. ShardingSphere recreates the distributed pluggable system, enabling actual user implementation scenarios to thrive and contributing valuable solutions to the community and the database industry.

  • AWS DocumentDB not MongoDB-compatible, says MongoDB Inc
  • Winners in the Month of LibreOffice, November 2021!

    At the start of November, we revved up a new Month of LibreOffice, celebrating community contributions all across the project. We do these every six months – so how many people got sticker packs this time? Check it out…

Programming Leftovers

  • Cracking the Spotify Code

    Spotify offers a little picture that, when scanned, opens almost anything searchable with Spotify. Several lines are centered on the Spotify logo with eight different heights, storing information in octal. Many visual encoding schemes encode some URI (Uniform Resource Identifier) that provides a unique identifier for that specific song, album, or artist when decoded. Since many URIs on Spotify are pretty long (one example being spotify :show:3NRV0mhZa8xeRT0EyLPaIp which clocks in at 218 bits), some mechanism is needed to compress the URIs down to something more manageable. Enter the media reference, a short sequence encoding a specific URI, generally under 40 bits. The reference is just a lookup in a database that Spotify maintains, so it requires a network connection to resolve. The actual encoding scheme from media reference to the values in the bars is quite complex involving CRC, convolution, and puncturing. The CRC allows the program to check for correct decoding, and the convolution enables the program to have a small number of read errors while still having an accurate result. Puncturing is just removing bits to reduce the numbers encoded, relying on convolution to fill in the holes.

  • Day 7: Neural Nets in Raku (Part 1) – Raku Advent Calendar

    Thinky the Elf was sitting in his office, it had been a closet but he’d been given it as his office after the great baked beans incident. It wasn’t his fault. He was right that feeding the reindeer beans would give them a jet boost but Santa had not been all that happy about it. And his tendency to stare of into space while suddenly having a thought wasn’t great while working on the shop floor meant it was safer to put him out of the way to do some thinking. Recently he’d been thinking about how to sort children into naughty or nice. This was Santa’s big job all year and Thinky thought that there must be a way to simplify it, he’d spent some time watching videos on YouTube and there was one that gave a brilliant description of Neural Networks (jump to 20 minutes for that bit but it’s an interesting video). As Thinky watched this he couldn’t help thinking about Raku and how the connections between nodes felt like Supplies.

  • Rblpapi 0.3.12: Fixes and Updates

    The Rblp team is happy to announce a new version 0.3.12 of Rblpapi which just arrived at CRAN. Rblpapi provides a direct interface between R and the Bloomberg Terminal via the C++ API provided by Bloomberg (but note that a valid Bloomberg license and installation is required). This is the twelveth release since the package first appeared on CRAN in 2016. Changes are detailed below and include both extensions to functionality, actual bug fixes and changes to the package setup. Special thanks goes to Michael Kerber, Yihui Xie and Kai Lin for contributing pull requests!

  • LLVM Now Has "Official" Support For Targeting NEC's Vector Engine (VE) - Phoronix

    The LLVM compiler infrastructure supports not only a growing number of CPU architectures but continues to lead when it comes to its support for different accelerators. Back in 2019 NEC was working to upstream their SX-Aurora VE "Vector Engine" Accelerator and now as of this week that target is considered officially supported upstream. NEC originally launched the SX-Aurora Vector Engine (VE) back in 2018 as a PCI Express accelerator card and supporting up to eight vector processors per server. The NEC SX-Aurora has its own architecture for the "VE" and is backed by HBM2 memory. The current VE processor is rated for 1.53 TB/s of memory bandwidth and a double precision peak performance of 3.07 TFLOPS or 4.91 single precision TFLOPS.

  • 5 Excellent Free Books to Learn CSS - LinuxLinks

    Web pages are built with HTML, which specifies the content of a page. CSS (Cascading Style Sheets) is a separate language which specifies a page’s appearance. CSS code is made of static rules. Each rule takes one or more selectors and gives specific values to a number of visual properties. Those properties are then applied to the page elements indicated by the selectors. Here’s our recommended books to learn CSS.

SSH Key Rotation with the POSIX Shell - Sunset Nears for Elderly Keys

OpenBSD has recently stressed to us the value of key rotation by their use of “Signify” distribution release signatures. We have realized that SSH keys should also rotate, to reduce the risk of powerful keys that fall into the wrong hands which become “the gift that keeps on giving.” There have always been open questions on the retirement of SSH keys. These questions have grown in volume and many are joining the advocacy for SSH certificate authorities. To “rotate” an SSH key is to replace it, in such a way that it is no longer recognized, requiring removal from the authorized_keys file. SSH rotation is commonly addressed with Ansible, but this leaves many users on smaller systems or lacking privilege without recourse. A more basic and accessible method to migrate SSH keys is sorely lacking. Below is presented an SSH key rotation script written in nothing more than the POSIX shell. There is palpable danger in the misuse of such a tool. Many administrators control inaccessible systems that entail massive inconvenience in a loss of control. Demonstrated here are rotation schemes of increasing risk, for any holder of a key to choose, to their own tolerance. Hopefully, I have not made grave mistakes in the design. The most conservative users of this approach should tread with extreme caution, test carefully, and ensure alternate means of access prior to any deployment. As the author, I have no desire to assume any responsibility for a failed rotation, and its consequences. I especially disavow the “wipe” option below to remove entries from authorized_keys. It is presented as commentary, not working code. In any case, we foolishly rush in where the more prudent fear to tread. Read more

Amazon Linux 2022 Performs Well, But Intel's Clear Linux Continues Leading In The Cloud

AWS recently introduced Amazon Linux 2022 in preview form as the latest iteration of their Linux distribution now based on Fedora with various alterations to catering to their customers running it on EC2. Last week were benchmarks looking at Amazon Linux 2022 compared to Amazon Linux 2 and other distributions like CentOS and Ubuntu. In this article we are seeing how Amazon Linux 2022 can compete with Intel's own Clear Linux performance-optimized distribution. Read more