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December 2017

Making Vim Even More Awesome With These Cool Features

Filed under
Linux

​Vim is quite an integral part of Every Linux Distribution and the most useful tool (of course after the terminal) for Linux Users. At least, this theory holds for me. People might argue that for programming, Vim might not be a good choice as there are different IDEs or other sophisticated text editors like Sublime Text 3, Atom etc. which make the programming job pretty easier.

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Cloak's Transaction System Enigma is Open Source - A Milestone for Privacy

Filed under
OSS

ENIGMA, the in-house payment system is open source as of 31st December 2017. Anyone can now take advantage of CloakCoin's Transaction System.

At the heart of CloakCoin is ENIGMA, protecting you from access by third parties, such as hackers, official bodies or any unwanted parties. The blockchain payment system encrypts the transactions of users and prevents transaction tracking while providing secure transactions with a maximum processing time of 60 seconds.

Thus, CloakCoin's ENIGMA ensures full privacy combined with speed.

Many advantages that are hard to find at other cryptos and which are now easily accessible to you, the end user.

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Docker, Inc is Dead

Filed under
Server

To say that Docker had a very rough 2017 is an understatement. Aside from Uber, I can’t think of a more utilized, hyped, and well funded Silicon Valley startup (still in operation) fumbling as bad as Docker did in 2017. People will look back on 2017 as the year Docker, a great piece of software, was completely ruined by bad business practices leading to its end in 2018. This is an outside facing retrospective on how and where Docker went wrong and how Docker’s efforts to fix it are far too little way too late.

[...]

Docker’s doom has been accelerated by the rise of Kubernetes. Docker did itself no favors in its handling of Kubernetes, the open source community’s darling container orchestrator. Docker’s competing product, Docker Swarm, was the only container orchestrator in Docker’s mind. This decision was made despite Kubernetes preferring Docker containers at first. Off the record, Docker Captains confirmed early in 2017 that Kubernetes discussions in articles, at meetups, and at conferences was frowned upon by Docker.

Through dockercon17 in Austin this Kubernetes-less mantra held. Then, rather abruptly, at dockercon EU 17 Docker decided to go all in on Kubernetes. The sudden change was an obvious admission to Kubernetes’ rise and impending dominance. This is only exacerbated by the fact that Docker sponsored and had a booth at KubeCon + CloudNativeCon North America 2017.

[...]

The real problem with Docker is a lack of coherent leadership. There appears to have been a strategic focus around a singular person in the organization. This individual has been pushed further and further away from the core of the company but still remains. The company has reorganized and has shifted its focus to the enterprise. This shift makes sense for Docker’s investors (the company does have a fiduciary responsibility after all). But, this shift is going to reduce the brand’s cool factor that fueled its wild success. It is said that, “Great civilizations are not murdered. They commit suicide.” Docker has done just that.

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Programming: LLVM Clang, Debian Tools, OpenCV

Filed under
Development
  • LLVM Clang Gets Support For Configuration Files

    Ahead of next week's LLVM 6.0 feature freeze / code branching, the Clang C/C++ compiler front-end has picked up support for the concept of configuration files.

    Clang configuration files basically come down to a file that can store multiple parameters to pass to Clang, just as you would otherwise do via the command-line but can now be stored into a text file. The purpose of these Clang configuration files is maninly for cross-compiler arguments or other use-cases where you may otherwise be passing a ton of repeated arguments to Clang.

  • pam-krb5 4.8

    This is the default Kerberos PAM module for Debian and Ubuntu systems, and supports both MIT Kerberos and Heimdal. I'm not sure how many people still use straight Kerberos PAM modules these days, with sssd taking off, but I'm still maintaining it.

    This release fixes a somewhat obscure bug: if you configure the module to do expired password changes properly, it checks to see that the expired credentials can still get kadmin/changepw credentials to do the password change. However, it was setting credential options improperly on that call, which could cause it to spuriously fail if, say, krb5.conf is configured to request proxiable credentials but kadmin/changepw doesn't support proxiable credentials. Thanks to Florian Best for the excellent bug report.

  • Animated line drawings with OpenCV

    OpenCV is a pretty versatile C++ computer vision library. Because I use it every day it has also become my go-to tool for creating simple animations at pixel level, for fun, and saving them as video files. This is not one of its core functions but happens to be possible using its GUI drawing tools.

  • rra-c-util 7.0

    This is my collection of utility libraries and support code for (mostly) C software.

    The major version bump is due a backwards-incompatible change: dropping the SA_LEN macro from portable/macros.h, including all the Autoconf machinery to probe for it. This macro came from INN's old portability code when porting to IPv6, but INN turned out to not really need it and it's never caught on. It was causing some warnings with GCC 7 that would otherwise have been hard to fix, so it was time for it to go.

  • C TAP Harness 4.2

    The functional change in this release of my test framework for C programs is the addition of a new is_blob test function. This is equivalent to ok(memcmp(...)) but it reports where the two memory regions differ as a diagnostic.

GNOME: Glade 3.21.0 and GNOME.Asia

Filed under
GNOME
  • Glade 3.21.0 Released!

    Glade 3.21.0 is the first development release in the 3.21 series

    It has a new modern UI for an improved, more streamline GUI design
    workflow.

  • Glade 3.21 Released For Whipping Up GTK3 Interfaces

    Glade 3.21 was released today as the latest development release of this tool for quickly designing GTK3/GNOME user-interfaces.

  • GNOME.Asia and Engagmeent update

    GNOME.Asia was an amazing event and I wanted to reach out to the organizers and thank them for the wonderful reception that I received while I was there. The trip to Chongqing was mostly uneventful other than the fact every Chinese official was gunning for my battery brick when going through airport security. After a long layover in Beijing, I was landed in Chongqing and met up with Mathias Clasen and proceeded to head to the hotel.

Android Apps on Chrome OS, postmarketOS Coming Along

Filed under
Android
  • Chromebooks Will Soon Support Parallel Android Apps with the Chrome OS 64 Update

    Google is reportedly bringing support for running multiple Android apps simultaneously on supported Chromebook models via an upcoming update of their Chrome OS Linux-based operating system.

    According to the ChromeUnboxed website, it would appear that the upcoming Chrome OS 64 operating system carries a new feature called "Android Parallel Tasks," which looks to let users run Android apps in the background on Chromebooks that support Google Play Store and Android apps.

    At the moment, Chrome OS pauses Android apps when the focus is no longer on them, which means that it's not possible to run multiple Android apps at the same time. The latest stable release of Chrome OS is version 63 and was released on December 15, a day after Google promoted Chrome OS 64 to the Beta channel.

  • 219 days of postmarketOS

    Most people around us have accepted that it is necessary to buy a new phone every other year. As a smartphone progresses through its own life cycle, manufacturer support for new features become rare, eventually stopping, and the device gets slower and slower. Even worse, after this period, the devices don't get security updates anymore. This means that in many cases the bored IT student next door is able to look up on the Internet how to turn your phone into a surveillance device. Unfortunately the only way to continue to receive security updates after this point is to purchase a new device. In lieu of any alternatives today, you really should purchase a new device to stay current with security updates.

    We want to have another option: postmarketOS is a Linux distribution based on (lightning fast) Alpine that aims for a ten year life-cycle. Instead of having binaries and forked source code for every device, we unify them as much as possible. That allows us to provide updates for all devices at once. The project is still in an early stage (no, you still can't make calls with it.) But it would be a mistake to wait for phone call functionality without informing you about all the breakthroughs we have had. Read on for the exciting changes since day one hundred!

LinuxConsole 2018 Gaming Operating System Released with TORCS and SuperTuxKart

Filed under
Linux
Gaming

Designed as a modern, gaming, and educational GNU/Linux distribution that can be easily installed on 32-bit or 64-bit computers and comes pre-installed with ready-to-use software and games, LinuxConsole 2018 brings up-to-date components like Linux kernel 4.9.66 LTS (64-bit) and Linux kernel 4.1.48 LTS (32-bit).

MATE 1.18 is used as default desktop environment in LinuxConsole 2018, which makes it possible to manage Bluetooth devices and simplifies the configuration of wireless networks. It also comes with the latest Mozilla Firefox 57 Quantum web browser and supports Arabic locale.

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Gentoo-Based Calculate Linux 17.12 New Year's Eve Release Adds SoftRaid Support

Filed under
Gentoo

Coming six months after version 17.6, Calculate Linux 17.12 introduces some new features and improvements like SoftRaid support, better automatic partitioning of drives, support for third-party overlays, better application task scheduling with the MuQSS kernel patch, as well as less memory load with the UKSM kernel patch.

Under the hood, Calculate Linux 17.12 is powered by the latest Linux 4.14 LTS (Long Term Support) kernel and X.Org Server 1.19.5 display server, uses a PAE binary kernel for 32-bit computes, updates GCC (GNU Compiler Collection) to version 6.4, optimizes all server kernel settings, and it launches Calculate Utilities server through D-Bus instead of running in the background, for better performance.

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More in Tux Machines

Programming/Development: C++, Go, Mozilla/Firefox and Python

  • Deliverable 1 : [✓]
    Seems okay, far better than the initial results. Although I should say, I deviated from what I thought I would need to write. First I assumed that I don’t have to write another boost::graph wrapper for KisPaintDevice, but I had to. That was one heck of an experience. In one of the last few posts, I ranted on Dmitry’s interpretation of the Graph, turns out we were on the same page but I understood his explanation the wrong way. I should put more attention to details from now on I guess. All the pixels are connected to each other, but they only have an edge between them if they are adjacent. If in center, the out degree would be 8, if in corners, 3 and if in edges, 5. There are some other cases too, but I will leave them for the moment. While writing the wrapper, I also got to know some of the cool features and techniques of C++, which I will be writing posts on as soon as I get some time, concepts, traits, avoiding virtual functions and what not. It is commendable that how boost approaches boost::astar_search, there is not a single virtual function, you don’t have to inherit anything (you can though for safety), just templates and traits, you are done.
  • Go Creeping In
    I’ve seen the inside of the Google and Amazon tech stacks. There are common threads that run through them and also, I bet, through most BigTechCos. Here and there down the stack is a lot of C++ and vestigial remnants from earlier days, Perl or PHP or whatever. Out in front of humans, of course, JS. But in between, there are oceans and oceans of Java; to a remarkable degree, it runs the Internet. Except for, here and there, you find a small but steadily increasing proportion of Go.
  • Stand by for FPR14 SPR1 chemspill
    Mozilla has shipped a fix for MFSA2019-18 in Firefox 67.0.3 and 60.7.1. This exploit has been detected in the wild, and while my analysis indicates it would require a PowerPC-specific attack to be exploitable in official TenFourFox builds (the Intel versions may be directly exploited, however), it could probably cause drive-by crashes and we should therefore ship an urgent fix as well. The chemspill is currently undergoing confidence tests and I'm shooting to release builds before the weekend. For builders, the only change in FPR14 SPR1 is the patch for bug 1544386, which I will be pushing to the repo just as soon as I have confirmed the fix causes no regressions.
  • PyPI Now Supports Two-Factor Login via WebAuthn
  • Understanding Python assignment
  • How to Publish Your Own Python Package to PyPI
  • PyCoder’s Weekly: Issue #373 (June 18, 2019)
  • EuroPython 2019: Community Discounts
  • EuroPython 2019: Inviting European Python Conference Organizers

today's howtos

All Linux, all the time: Supercomputers Top 500

Starting at the top, two IBM-built supercomputers, Summit and Sierra, at the Department of Energy's Oak Ridge National Laboratory (ORNL) in Tennessee and Lawrence Livermore National Laboratory in California, respectively to the bottom -- a Lenovo Xeon-powered box in China -- all of them run Linux. Linux supports more hardware architectures than any other operating system. In supercomputers, it supports both clusters, such as Summit and Sierra, the most common architecture, and Massively Parallel Processing (MPP), which is used by the number three computer Sunway TaihuLight. When it comes to high-performance computing (HPC), Intel dominates the TOP500 by providing processing power to 95.6% of all systems included on the list. That said, IBM's POWER powers the fastest supercomputers. One supercomputer works its high-speed magic with Arm processors: Sandia Labs' Astra, an HPE design, which uses over 130-thousand Cavium ThunderX2 cores. And, what do all these processors run? Linux, of course. . 133 systems of the Top 500 supercomputers are using either accelerator or co-processor setups. Of these most are using Nvidia GPUs. And, once more, it's Linux conducting the hardware in a symphony of speed. Read more

Red Hat and SUSE Leftovers

  • Are DevOps certifications valuable? 10 pros and cons
  • Kubernetes 1.15: Enabling the Workloads
    The last mile for any enterprise IT system is the application. In order to enable those applications to function properly, an entire ecosystem of services, APIs, databases and edge servers must exist. As Carl Sagan once said, “If you wish to make an apple pie from scratch, you must first invent the universe.” To create that IT universe, however, we must have control over its elements. In the Kubernetes universe, the individual solar systems and planets are now Operators, and the fundamental laws of that universe have solidified to the point where civilizations can grow and take root. Discarding the metaphor, we can see this in the introduction of Object Count Quota Support For Custom Resources. In English, this enables administrators to count and limit the number of Kubernetes resources across the broader ecosystem in a given cluster. This means services like Knative, Istio, and even Operators like the CrunchyData PostgreSQL Operator, the MongoDB Operator or the Redis Operator can be controlled via quota using the same mechanisms that standard Kubernetes resources have enjoyed for many releases. That’s great for developers, who can now be limited by certain expectations. It would not benefit the cluster for a bad bit of code to create 30 new PostgreSQL clusters because someone forgot to add a “;” at the end of a line. Call them “guardrails” that protect against unbounded object growth in your etcd database.
  • Red Hat named HPE’s Partner of the Year at HPE Discover 2019
    For more than 19 years, Red Hat has collaborated with HPE to develop, deliver and support trusted solutions that can create value and fuel transformation for customers. Our work together has grown over these nearly two decades and our solutions now include Linux, containers and telecommunications technologies, to name just a few. As a testament to our collaboration, HPE has named Red Hat the Technology Partner of the Year 2019 for Hybrid Cloud Solutions.
  • Demystifying Containers – Part II: Container Runtimes
    This series of blog posts and corresponding talks aims to provide you with a pragmatic view on containers from a historic perspective. Together we will discover modern cloud architectures layer by layer, which means we will start at the Linux Kernel level and end up at writing our own secure cloud native applications. Simple examples paired with the historic background will guide you from the beginning with a minimal Linux environment up to crafting secure containers, which fit perfectly into todays’ and futures’ orchestration world. In the end it should be much easier to understand how features within the Linux kernel, container tools, runtimes, software defined networks and orchestration software like Kubernetes are designed and how they work under the hood.
  • Edge > Core > Cloud: Transform the Way You Want
    For more than 25 years, SUSE has been very successful in delivering enterprise-grade Linux to our customers. And as IT infrastructure has shifted and evolved, so have we. For instance, we enabled and supported the move to software-defined data centers as virtualization and containerization technologies became more prevalent and data growth demanded a new approach.
  • SUSE OpenStack Cloud Technology Preview Takes Flight
    We are pleased to announce that as of today we are making a technology preview of a containerized version of SUSE OpenStack Cloud available that will demonstrate a future direction for our product. The lifecycle management for this technology preview is based on an upstream OpenStack project called Airship, which SUSE has been using and contributing to for some time. This follows our open / open policy of upstream first and community involvement.