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Red Hat, IBM and Fedora's Kernel

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  • CodeReady Workspaces devfile, demystified

    With the exciting advent of CodeReady Workspaces (CRW) 2.0 comes some important changes. Based on the upstream project Eclipse Che 7, CRW brings even more of the “Infrastructure as Code” idea to fruition. Workspaces mimic the environment of a PC, an operating system, programming language support, the tools needed, and an editor. The real power comes by defining a workspace using a YAML file—a text file that can be stored and versioned in a source control system such as Git. This file, called devfile.yaml, is powerful and complex. This article will attempt to demystify the devfile.

  • Building freely distributed containers with Podman and Red Hat UBI

    DevNation tech talks are hosted by the Red Hat technologists who create our products. These sessions include real solutions and code and sample projects to help you get started. In this talk, you’ll learn about building containers with Podman and Red Hat Universal Base Image (UBI) from Scott McCarty and Burr Sutter.

    We will cover how to build and run containers based on UBI using just your regular user account—no daemon, no root, no fuss. Finally, we will order the de-resolution of all of our containers with a really cool command. After this talk, you will have new tools at the ready to help you find, run, build, and share container images.

  • Backfitting SLES 12 for IBM z15 – It’s in Our DNA

    For 20 years, SUSE has partnered with IBM to advance Linux on Z. From the early days of the IBM Linux Tech Center to an elaborate open source ecosystem, you might say that supporting IBM Z is part of our DNA.
    Several months ago, SUSE included support for the newly announced IBM z15 and IBM LinuxONE III systems as part of SLES 15. Now, with SUSE Linux Enterprise Server for IBM Z and LinuxONE 12 SP5, we are backfitting all the latest IBM Z support for pervasive encryption and more.
    The latest IBM z15 system is designed to support your mission-critical initiatives and allow you to be innovative as you design and scale your environment. Combined with SUSE Linux Enterprise Server for IBM Z and LinuxONE, these state-of-the-art systems provide an ultra-secure data serving platform to support the global economic growth we are seeing today.

  • Contribute at the Fedora Test Week for Kernel 5.4

    The kernel team is working on final integration for kernel 5.4. This version was just recently released, and will arrive soon in Fedora. This version has many security fixes included. As a result, the Fedora kernel and QA teams have organized a test week from Monday, December 09, 2019 through Monday, December 16, 2019. Refer to the wiki page for links to the test images you’ll need to participate. Read below for details.

Fedora Prepares To Roll-Out Linux 5.4 Kernel Update

  • Fedora Prepares To Roll-Out Linux 5.4 Kernel Update But Needs Help Testing

    Fedora users eager to see the Linux 5.4 stable kernel can engage by helping to test their newly-spun 5.4-based kernel image prior to it officially landing as a stable release update.

    Fedora remains one of the few non-rolling-release distributions that is willing to send down major kernel updates as part of their stable release updates for existing distributions. They are in the process of sending down Linux 5.4 but are hoping for more widespread testing first.

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More in Tux Machines

Devices: Xtra-PC, Arduino and Inventor Coding Kit

  • Xtra-PC Reviews – Best Linux USB-Stick? - Product Review by Rick Finn

    The Xtra-PC Linux USB-Stick might be your solution if you have problems with your old and slow PC. It's a small flash drive stick and it's using Linux OS to boost you PC's operations. Check out now.

  • Arduino Blog » Old keyboard turned into a new children’s learning toy

    Peter Turczak’s toddler son loves “technical stuff,” especially things like keyboards and computers that adults use. After discussing this with other likeminded technical parents, the idea of giving new life to an old (PS/2 or AT) keyboard as a teaching tool was hatched.

  • SiFive Helping To Teach Kids Programming With RISC-V HiFive Inventor Coding Kit

    SiFive in cooperation with Tynker and BBC Learning have launched a Doctor Who themed HiFive Inventor Coding Kit. This Initial HiFive Inventor Coding Kit is intended to help kids as young as seven years of age get involved with computer programming through a variety of fun exercises and challenges involving the RISC-V powered mini computer and related peripherals like LED lighting and speaker control. [...] So for those looking to get their kids involved with computer programming and looking for an IoT-type device with some fun sensors and various themed exercises to get them experimenting, the HiFive Inventor Coding Kit is worth looking into further. More details on the programming platform can be found via Tynker.com and on the hardware at HiFiveInventor.com. The HiFive Inventor Kit is available from Amazon.com and other Internet retailers for $75 USD.

Security Leftovers

  • Security updates for Monday

    Security updates have been issued by Arch Linux (atftp, coturn, gitlab, mdbook, mediawiki, nodejs, nodejs-lts-dubnium, nodejs-lts-erbium, nodejs-lts-fermium, nvidia-utils, opensmtpd, php, python-cairosvg, python-pillow, thunderbird, vivaldi, and wavpack), CentOS (firefox and thunderbird), Debian (chromium and snapd), Fedora (chromium, flatpak, glibc, kernel, kernel-headers, nodejs, php, and python-cairosvg), Mageia (bind, caribou, chromium-browser-stable, dom4j, edk2, opensc, p11-kit, policycoreutils, python-lxml, resteasy, sudo, synergy, and unzip), openSUSE (ceph, crmsh, dovecot23, hawk2, kernel, nodejs10, open-iscsi, openldap2, php7, python-jupyter_notebook, slurm_18_08, tcmu-runner, thunderbird, tomcat, viewvc, and vlc), Oracle (dotnet3.1 and thunderbird), Red Hat (postgresql:10, postgresql:12, postgresql:9.6, and xstream), SUSE (ImageMagick, openldap2, slurm, and tcmu-runner), and Ubuntu (icoutils).

  • About CVE-2020-27348

    Well this is a doozey. Made public a while back was a security vulnerability in many Snap Packages and the Snapcraft tool used to create them. Specifically, this is the vulnerability identified as CVE-2020-27348. It unfortunately affects many many snap packages… [...] The problem arises when the LD_LIBRARY_PATH includes an empty element in its list. When the Dynamic Linker sees an empty element it will look in the current working directory of the process. So if we construct our search paths with an accidental empty element the application inside our Snap Package could be caused to load a shared library from outside the Snap Package’s shipped files. This can lead to an arbitrary code execution. It has been common to put a definition of the LD_LIBRARY_PATH variable into a Snap Package’s snapcraft.yaml that references a predefined $LD_LIBRARY_PATH as if to extend it. Unfortunately, despite this being common, it was poorly understood that SnapD ensures that the $LD_LIBRARY_PATH is unset when starting a Snap Package’s applications. What that means is that where the author tried to extend the variable they have inadvertantly inserted the bad empty element. The empty element appears because $LD_LIBRARY_PATH is unset so the shell will expand it to an empty string.

  • Wait, What? Kids Found A Security Flaw in Linux Mint By Mashing Keys!

    Security flaws can be incredibly stupid and dangerous. Of course, I’m not judging anyone, we are humans after all. But this little incident is quite funny.

Audiocasts/Shows: Blender 2.91, Server Security, Linux in the Ham Shack and More

IBM/Red Hat Leftovers

  • Davie Street Enterprises: A case study in digital transformation

    We would like to introduce you to Davie Street Enterprises (DSE). DSE is a fictitious 100-year-old multinational corporation that is beginning its digital transformation journey. In this post we will lay the groundwork for a series following DSE as an illustration of how some Red Hat customers are preparing for and succeeding at digital transformation to save money, become more efficient, and compete more effectively. The company isn't real, but its struggle is very real for many organizations. Throughout this series, we will explore the business problems any number of organizations are challenged with and how DSE, with the help of Red Hat and its partners, plan to solve those problems. To start, let’s learn more about DSE, its business, and some of the associates involved in its digital transformation journey.

  • Farewell 2020: A year of togetherness with our EMEA partners

    When reflecting on 2020, I do what many people do and think about what things were like prior to this year. For me, I immediately go back to a spring day three years ago. Red Hat was hosting our EMEA Partner Conference; a mix of distributors, independent software vendors (ISVs), system integrators and solution providers from across the region. Alongside the usual product updates and market insight sessions you might expect, we decided to do a little drumming. A lot of drumming, in fact — 900 people banging bongos and clashing cymbals. Other than the noise, what I remember was the genuine sense of togetherness; embarrassment and egos put to the side in the pursuit of the perfect tempo. It seems drumming is a good signal of solidarity. Even in a large group, it’s easy to notice someone beating to a different rhythm. Trainers and coaches use this drumming technique frequently to promote unity and coordination. Our coach that day later congratulated me on "having such a tight knit group of employees." When I told him they weren’t our employees but partners from 550 different companies, he couldn’t believe it.

  • Visualizing system performance with RHEL 8 using Performance Co-Pilot (PCP) and Grafana (Part 1)

    When it comes to performance metrics data collection and visualization on Linux, PCP metrics collection and visualization are key. Red Hat Enterprise Linux (RHEL) 8 provides an excellent framework for collecting performance metrics and visualizing them! The days of poring over command line output to try and figure out what is happening on a system are gone. In this series, I’d like to introduce the power of using Performance Co-Pilot (PCP) and Grafana to visualize system performance data in RHEL. By default, Performance Co-Pilot is not installed on RHEL 8. We believe in giving users choices and as such, you have to opt-in to using Performance Co-Pilot.