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April 2017

today's leftovers

Filed under
Misc

Leftovers: Software

Filed under
Software
  • The Atom Editor

    I didn’t set out to write a blog post about a text editor. I was going to write about one of the other awesome projects that the Ops team is doing here at Wombat. Along the way I decided to give Atom a chance again and I’m glad I did. I enjoyed it enough that I thought I would defer my post about automating my “Ops Environment” on a mac (I promise, I’ll do that one soon-ish) in favor of this.

  • Quick Update: ClipGrab and PlayOnLinux Applications Are Now Available For ALL Ubuntu Versions

    ClipGrab is fairly popular application to download video from famous sites of the Internet. It allows you to search video with in application and select to download the video or other way you can copy and paste the video URL to the application to download the video. Since famous video sites are supported by this application, if some site isn't officially supported, you may still be able to download the videos from it.

  • aTunes Enriched Audio Player Now Available For All Current Ubuntu/Linux Mint Versions

    There are wide variety of audio players available for Linux and you may have your favorite one installed on your system. aTunes is not new audio player but its initial release was way back in 2006 and the most recent version was released in June, 2014. In almost two years there is no news on the website or release from developers, well it is open-source released under GPL-V2 license and we don't see any other to carry on the development of this great application. It is written in Java programming language and it's cross-platform available for Linux, Unix, Windows and Mac. It uses Mplayer as its playback engine and supports wide variety of known formats such as: MP3, Ogg Vorbis, FLAC, WMA and other formats.

QNX 7 Can Be Fitted With A Qt5 Desktop

Filed under
OS
  • QNX 7 Can Be Fitted With A Qt5 Desktop

    While QNX remains targeted as an operating system for mobile/embedded solutions, a BlackBerry developer in his spare time has fitted QNX 7 with a Qt5 desktop.

    QNX 6 and prior had a desktop option, but was removed in QNX 7, which was released this past March. QNX 7.0 also brought support for 64-bit (and maintaining 32-bit) Intel x86 and ARM platforms along with C++14 support. For those wanting to experiment with QNX 7, a BlackBerry kernel developer has been working on making this operating system more desktop friendly.

  • Building a BlackBerry QNX 7 Desktop

    Having Qt allowed me to port one of my favourite applications, SpeedCrunch. It was a simple matter of running ‘qmake’ followed by ‘make’. Next, I ported the QTermWidget library so that I could have terminal windows.

Kernel Space/Linux

Filed under
Linux
  • Kernel explained
  • [Older] [Video] Audio on Linux: The End of a Golden Age?
  • State of Sway April 2017

    Development on Sway continues. I thought we would have slowed down a lot more by now, but every release still comes with new features - Sway 0.12 added redshift support and binary space partitioning layouts. Sway 0.13.0 is coming soon and includes, among other things, nvidia proprietary driver support. We already have some interesting features slated for Sway 0.14.0, too!

    Today Sway has 21,446 lines of C (and 4,261 lines of header files) written by 81 authors across 2,263 commits. These were written through 653 pull requests and 529 issues. Sway packages are available today in the official repos of pretty much every distribution except for Debian derivatives, and a PPA is available for those guys.

Supporting Burning Platforms

Filed under
GNU
Linux
Microsoft
  • Surface revenue does a U-boat, and dives

    Revenue generated by Microsoft's Surface hardware during the March quarter was down 26% from the same period the year before, the company said yesterday as it briefed Wall Street.

    For the quarter, Surface produced $831 million, some $285 million less than the March quarter of 2016, for the largest year-over-year dollar decline ever.

  • Acer said to me: "do not use our products with Linux. Find another manufacturer"

    Last year, I bought an Acer notebook and it came with Windows 10.

    As I didn't want spyware neither bloatware, I got Linux installed and asked for a refund of the OEM license. After a little of talking, they were wanting to charge me US$100 (to remove the license, which I already had wiped, as I got FDE Linux installed) to refund US$70 of the OEM license.

    This year, wondering to buy a new Acer notebook, I asked them again if they would refund me the OEM license without all the hassle (as they did pay me the US$70, without me having to pay the US$100).

Leftovers: OSS

Filed under
OSS
  • LibreOffice the better Office, really?
  • A serious bug in GCC

    This post is to inform you about a bug in GCC that may cause memory (or other resource) leaks in your valid C++ programs.

  • [Older] Supporting Bangladesh’s software industry with Indian cooperation

    It’s worth noting that the word “free” in free/open-source software implies not just free of cost, but also freedom from commercial dependence upon multi-national software vendors.

    To emphasise this, the biography of Richard Stallman, the founder of the free software movement which ultimately produced the Linux operating system, is titled Free as in Freedom.

    In fact, it is impossible to run a modern government without computers; so it should not be acceptable that sovereign nations like Bangladesh be forever dependent on foreign IT vendors, especially when the Linux alternative offers both freedom and zero-cost.

Security Leftovers

Filed under
Security
  • Is there any way to truly secure Docker container contents?

    All this adds up to a lot of work, which is not taken care of for you by default in Docker. It is no surprise that many Docker images are insecure, given this picture. The unfortunate reality is that many Docker containers are running with known vulnerabilities that have known fixes, but just aren’t, and that’s sad.

  • Compromise recovery on Qubes OS

    Occasionally fuckups happen, even with Qubes (although not as often as some think).

    What should we – users or admins – do in such a situation? Patch, obviously. But is that really enough? What good is patching your system if it might have already been compromised a week earlier, before the patch was released, when an adversary may have learned of the bug and exploited it?

    That’s an inconvenient question for many of us – computer security professionals – to answer. Usually we would mutter something about Raising the Bar(TM), the high costs of targeted attacks, attackers not wanting to burn 0-days, or only nation state actors being able to afford such attacks, and that in case one is on their list of targets, the game is over anyway and no point in fighting. Plus some classic cartoon.

    While the above line of defense might work (temporarily), it really doesn’t provide for much comfort, long term, I think. We need better answers and better solutions. This post, together with a recently introduced feature in Qubes OS 3.2 and (upcoming) 4.0, is an attempt to offer such a solution.

  • Top 5 Kali Linux Pentest tools for WiFi/network and exploits
  • Linux/Shishiga Malware Brute-Forces SSH Credentials

    A new strain of Linux malware has been detected. Dubbed Linux/Shishiga, the malware could transform into a dangerous piece of malware. Linux/Shishiga was officially discovered and examined by researchers at Eset.

  • Cybercriminals have taken notice of leaked government spying techniques
  • Microsoft Closes Word/Wordpad Hole—6 Months after Report
  • [Older] The Pentagon’s Bug Bounty Program Should Be Expanded to Bases, DOD Official Says [iophk: "any version of Windows at all is inappropriate"]

    “About 75 percent of the devices that are control systems are on Windows XP or other nonsupported operating systems,” said Daryl Haegley, program manager for the Office of the Assistant Secretary of Defense for Energy, Installations and Environment.

    [...]

    “A lot of these systems are still Windows 95 or 98, and that’s OK—if they’re not connected to the internet,” Haegley added.

  • Don’t Info Op Until You See The Whites of Their Eyes
  • CFP P70

    This is the official CFP for P70.

  • VM escape - QEMU Case Study

    In this paper, we provide a in-depth analysis of CVE-2015-5165 (a memory-leak vulnerability) and CVE-2015-7504 (a heap-based overflow vulnerability), along with working exploits. The combination of these two exploits allows to break out from a VM and execute code on the target host. We discuss the technical details to exploit the vulnerabilities on QEMU's network card device emulation, and provide generic techniques that could be re-used to exploit future bugs in QEMU.

  • CIA’s anti-leaking tool leaked as ‘whistleblowers watch the watchers’

    Former MI5 intelligence officer Annie Machon and retired US Army Colonel Ann Wright, who is also a retired US State Department official, shared their views on these and other questions with RT.

    On Friday, WikiLeaks released a series of documentations on a US Central Intelligence Agency (CIA) project known as ‘Scribbles,’ which was allegedly created to allow ‘web beacon’ tags to be embedded “into documents that are likely to be copied.”

    WikiLeaks began publishing a huge cache of secret documents on the CIA named ‘Vault 7’ in March.

  • Vault 7: CIA tool to track people through Word docs released

    The documentation says: "Scribbles (SCRIB) is a document watermarking tool that can be used to batch process a number of documents in a pre-seeded input directory. It generates a random watermark for each document, inserts that watermark into the document, saves all such processed documents in an output directory, and creates a log file which identifies the watermarks inserted into each document."

    It says the tool was successfully tested on Office 2013 (on Windows 8.1 x64), documents from Office versions 97-2016 (Office 95 documents will not work!) and documents that are not locked forms, encrypted, or password-protected.

    There is a limitation to the Scribbles system: if a document that has the watermarks in it and is opened in OpenOffice, LibreOffice the watermark images and URLs may become visible.

  • The US Takes On the World in NATO’s Cyber War Games

    Last year, Capt. Sean Ruddy and his team of operator-soldiers from the US Cyber Brigade entered a Locked Shields, a NATO-organized cyber-defense war game that pits teams from dozens of countries against “live-fire” attacks. It was their first time. And of the 19 countries represented, the US finished dead last. This week, they got their shot at redemption.

Anbox Runs Android In Your Linux Without Emulation

Filed under
Linux

​In a recent article, we talked about android emulators for Ubuntu or Linux in general. Most of the time we need to play a game or try some applications on android or even when we don’t have a smartphone we opt to use an emulator to try applications. A fan on facebook let us know about Anbox and asked for the tutorial on Anbox installation in Linux. So here you have how to install Anbox in Linux.

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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.