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Red Hat and CentOS Fix Kernel Bug in Latest OS Versions, Urge Users to Update

Submitted by Rianne Schestowitz on Wednesday 18th of July 2018 04:47:02 PM Filed under
OS
Red Hat
Security

It would appear the there was a bug in the previous Linux kernel update for the Red Hat Enterprise Linux 7.5 and CentOS Linux 7.5 releases, which was released to address the Spectre V4 security vulnerability, making connection tracking information to not function correctly, which could lead to connectivity loss and leaking of configuration properties related to the respective connection tracking into other namespaces.

"Previously, the connection tracking information was not cleared properly for packets forwarded to another network namespace," said Red Hat in an advisory. "Packets that were marked with the "NOTRACK" target in one namespace were excluded from connection tracking even in the new namespace. Consequently, a loss of connectivity occasionally occurred, depending on the packet filtering ruleset of the other network namespaces."

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Also: Red Hat Open-Sources Scanner That Checks Linux Binaries For Spectre V1 Potential

Red Hat Continues Driving Wonderful Innovations In Fedora Workstation

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Oracle Solaris 11.3 and Solaris 11.4

Submitted by Roy Schestowitz on Wednesday 18th of July 2018 09:48:56 AM Filed under
OS
  • Oracle Solaris 11.3 SRU 34 Brings GCC 7.3, Other Package Updates

    While Solaris 11.4 is still in the oven being baked at Oracle, the thirty-fourth stable release update of Solaris 11.3 is now available.

  • Oracle Solaris 11.3 SRU 34 released

    Full details of this SRU can be found in My Oracle Support Doc 2421850.1. For the list of Service Alerts affecting each Oracle Solaris 11.3 SRU, see Important Oracle Solaris 11.3 SRU Issues (Doc ID 2076753.1).

  • Oracle Solaris 11.4 Open Beta Refresh 2

    As we continue to work toward release of Oracle Solaris 11.4, we present to you our third release of Oracle Solaris 11.4 open beta.

  • Oracle Solaris 11.4 Public Beta Updated With KPTI For Addressing Meltdown

    In addition to sending down a new SRU for Solaris 11.3, the Oracle developers left maintaining Solaris have issued their second beta of the upcoming Solaris 11.4.

    Oracle Solaris 11.4 Open Beta Refresh 2 is an updated version of their public beta of Solaris 11.4 originally introduced in January. They say this is the last planned public beta with the general availability release now nearing availability.

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How to enable developer mode on a Chrome OS tablet (and install Linux using Crouton)

Submitted by Rianne Schestowitz on Monday 16th of July 2018 05:33:32 PM Filed under
OS
Linux
HowTos

Google’s Chrome OS is designed to be a relatively secure, simple operating system that’s easy to use and hard to mess up. But you can run stable channel, beta channel, or dev channel software on any Chromebook depending on whether you want the safest experience or buggy, bleeding-edge features.

There’s also an option called Developer Mode, which is different from the dev channel. It allows you to access files and settings that are normally protected and use a command shell to explore the system. It’s designed for developers and advanced users only, since it increases the chances that you’ll break your Chromebook. But enabling Developer Mode is also a prerequisite for using one my favorite Chrome OS hacks: a tool called Crouton that allows you to install Ubuntu or another GNU/Linux distribution and run it alongside Chrome OS.

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ReactOS 0.4.9 Available For Download

Submitted by Roy Schestowitz on Monday 16th of July 2018 03:48:23 PM Filed under
OS

ReactOS 0.4.9 has been working on various kernel improvements, better Win32 compatibility / regression fixes, various DLL enhancements, pulling in some updated DLLs from Wine-Staging, and a variety of other improvements. The extensive technical list of changes for ReactOS 0.4.9 can be found via this Wiki page.

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Canonical Announces the New Minimal Ubuntu OS for Public Clouds and Docker Hub

Submitted by Rianne Schestowitz on Monday 9th of July 2018 03:52:16 PM Filed under
OS
Ubuntu

Engineered to provide both a small footprint and package selection, the new Minimal Ubuntu operating system is designed and optimized for automated use by the masses on public clouds and the Docker Hub, promising to offer users state-of-the-art security, outstanding performance, stability, and reliability at all times.

If you want to use the smallest possible Ubuntu base image for automated cloud operations on public clouds, you need to use the new Minimal Ubuntu operating system, which is more than 50 percent smaller than the standard Ubuntu Server image and offers up to 40 percent faster booting.

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SmartOS Announces New Builds Geared Toward VM & Cloud Server Administrators

Submitted by Roy Schestowitz on Sunday 8th of July 2018 09:30:57 AM Filed under
OS

Developers from the SmartOS project announced the release of build #20180705, which promises to help spread Solaris-based software on the headless server market. Most of the media attention regarding free and open-source operating systems these days focuses primarily on implementations of GNU/Linux and *BSD.

illumos, a fork of OpenSolaris, is set to take the world by storm however. It’s perhaps best known for the unusual lack of capitalization in its name, but developers are now really promoting it as a stable Unix system for extremely secure environments.

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SteamOS has a minor update to test the waters before a bigger update

Submitted by Roy Schestowitz on Sunday 8th of July 2018 07:52:37 AM Filed under
OS
Debian
Gaming

Really good to see this. SteamOS had a small update recently, which is testing the waters towards a bigger update.

If you've been wondering why SteamOS updates had been so quiet, it seems Valve has been working on updating their build infrastructure. They have another updating coming, to finally update the graphics drivers and kernel versions which will also be great to have.

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Direct: SteamOS update 2.151 pushed to brewmaster beta

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Test 100+ Linux And Unix Operating Systems Online For Free

Submitted by Roy Schestowitz on Friday 6th of July 2018 02:41:46 AM Filed under
OS

A while ago, we have covered about OSBoxes, a website that offers a collection of free, ready-to-use Linux and Unix VMs. You can download and try them on your Linux system using VirtualBox or VMWare workstation. Today, I stumbled upon a similar service named “DistroTest”. Unlike OSBoxes, DistroTest allows you to try the live Linux and Unix operating systems for free. You can test 100+ Linux and Unix operating systems online without having to install them locally. Just visit the website, choose the Linux/Unix distro of your choice and fire it up!

Two good Samaritans named Andy Klemann and Tobias Forster have hosted this web service using Debian using Qemu. There is no restrictions to use the public distros listed here. You can use all functions of the system as the way you do in your local system. You can install and uninstall software. You can test installed programs and
even delete or format the hard disk or system files. In a nutshell, DistoTest lets the distro hoppers to decide,

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First impressions of PureOS

Submitted by Roy Schestowitz on Friday 6th of July 2018 02:31:29 AM Filed under
OS
GNOME

Because it's GNOME, the desktop was immediately familiar to me. I've been a GNOME user for a long time, and I work with GNOME in testing usability of new features. So the GNOME desktop was a definite plus for me.

It's not a stock GNOME, however. PureOS uses a custom theme that doesn't use the same colors as a stock GNOME. GNOME doesn't use color very often, but I noticed this right away in the file manager. Clicking on a navigation item highlights it in a sort of rust color, instead of the usual blue.

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CentOS Linux 6.10 Released with Retpoline-Based Mitigations for Spectre V2 Flaw

Submitted by Rianne Schestowitz on Thursday 5th of July 2018 05:44:26 PM Filed under
OS
Red Hat

Based on Red Hat Enterprise Linux 6.10, CentOS Linux 6.10 incorporates a new GCC (GNU Compiler Collection) update that supports retpolines to better protect users against the second variant of the well-known Spectre security vulnerability affecting billions of computers powered by modern processors.

The CentOS Linux 6.10 release also rebases the gcc-libraries, clufter, and pacemaker packages on newer upstream releases, updates the iptables-services package to read configuration files from the /etc/sysctl.d folder, and updates BIND with a new root KSK for the forthcoming DNSSEC Root Zone Key-Signing-Key rollover.

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More in Tux Machines

Linux Foundation, AGL and Linux Security

  • Deutsche Telekom joins Linux Foundation as platinum member
    Deutsche Telekom has joined The Linux Foundation Networking (LFN) as a Platinum member. Telekom will support LFN’s efforts to accelerate the development and adoption of open-source networking technologies and contribute to new network technologies enabling 5G services, said LFN. LFN said its projects now enable nearly 70 percent of all global mobile subscribers with the addition of Deutsche Telekom, and the company’s membership in LFN will drive the LFN initiative into new regions and promote the adoption of open standards and source.
  • Deutsche Telekom Goes Platinum at Linux Foundation
    Linux Foundation Networking (LFN) continues its membership growth with the addition of its newest Platinum member, Deutsche Telekom, one of the world’s leading integrated telecommunications companies. Deutsche Telekom joins LFN to support its efforts in accelerating the development and adoption of open source networking technologies. With the addition of Deutsche Telekom, LFN projects now enable nearly seventy percent of all global mobile subscribers. With its collaboration and extensive global footprint, Deutsche Telekom will help accelerate LFN globally, contributing to emerging network technologies critical to enabling 5G services. LFN supports the momentum of open source networking, integrating governance of participating projects in order to enhance operational excellence, simplify member engagement, and increase collaboration. Deutsche Telekom is also an active participant in the ONAP project and plans to contribute to the next platform release, Casablanca.
  • Automotive open source virtualization: Bringing open source virtualization in AGL
    The AGL Software Defined Car Architecture white paper defines how the AGL target platform for software defined vehicles can be implemented by using virtualization techniques, presented in the document along with their automotive benefits, challenges, use cases and requirements. From the beginning, this work objective was to provide an architecture for a virtualization platform that can be used, extended or customized by Tier-1 or OEM companies to reduce time to market.
  • Meltdown Protection For x86 32-bit Aligned For The Linux 4.19 Kernel
    Those still relying upon x86 32-bit Linux kernels for aging hardware and continuing to update to the latest software will find mitigation for the Meltdown CPU vulnerability with the upcoming Linux 4.19 kernel cycle. You'll find this mitigation but at the cost of performance. While x86_64 Linux was mitigated back in January for Meltdown, it's taken a while for x86 32-bit support for KPTI, Kernel Page Table Isolation. This is basically applying the same page table isolation approach seen on Linux x86_64 and ARM to now the 32-bit x86 kernel code. Obviously it hasn't been a priority with many Linux distributions not even bothering with i686 install images in recent years.

Cloud-Native/Kubernetes/Container/OpenShift

  • 10 Key Attributes of Cloud-Native Applications
    Cloud-native platforms, like Kubernetes, expose a flat network that is overlaid on existing networking topologies and primitives of cloud providers. Similarly, the native storage layer is often abstracted to expose logical volumes that are integrated with containers. Operators can allocate storage quotas and network policies that are accessed by developers and resource administrators. The infrastructure abstraction not only addresses the need for portability across cloud environments, but also lets developers take advantage of emerging patterns to build and deploy applications. Orchestration managers become the deployment target, irrespective of the underlying infrastructure that may be based on physical servers or virtual machines, private clouds or public clouds. Kubernetes is an ideal platform for running contemporary workloads designed as cloud-native applications. It’s become the de facto operating system for the cloud, in much the same way Linux is the operating system for the underlying machines. As long as developers follow best practices of designing and developing software as a set of microservices that comprise cloud-native applications, DevOps teams will be able to package and deploy them in Kubernetes. Here are the 10 key attributes of cloud-native applications that developers should keep in mind when designing cloud-native applications.
  • Google Embraces New Kubernetes Application Standard
    Once an organization has a Kubernetes container orchestration cluster running, the next challenge is to get applications running. Google is now aiming to make it easier for organizations to deploy Kubernetes applications, through the Google Cloud Platform Marketplace. The new marketplace offerings bring commercial Kubernetes-enabled applications that can be run in the Google cloud, or anywhere else an organization wants. All a user needs to do is visit the GCP marketplace and click the Purchase Plan button to get started. "Once they agree to the terms, they'll find instructions on how to deploy this application on the Kubernetes cluster of their choice, running in GCP or another cloud, or even on-prem," Anil DhawanProduct Manager, Google Cloud Platform, told ServerWatch. "The applications report metering information to Google for billing purposes so end users can get one single bill for their application usage, regardless of where it is deployed."
  • Challenges and Requirements for Container-Based Applications and Application Services
    Enterprises using container-based applications require a scalable, battle-tested, and robust services fabric to deploy business-critical workloads in production environments. Services such as traffic management (load balancing within a cluster and across clusters/regions), service discovery, monitoring/analytics, and security are a critical component of an application deployment framework. This blog post provides an overview of the challenges and requirements for such application services.

Software: Music Tagger MusicBrainz, Pulseaudio, COPR, AV1

  • Music Tagger MusicBrainz Picard 2.0 Ported To Python 3 And PyQt5, Brings Improved UI And More
    MusicBrainz Picard version 2.0 was released after more than 6 years since the previous major release (1.0). The new version was ported to Python 3 and PyQt5 and includes Retina and HiDPI support, improved UI and performance, as well as numerous bug fixes. [...] MusicBrainz Picard 2.0 was ported to Python 3 (requires at least version 3.5) and PyQt5 (>= 5.7). The release announcement mentions that a side effect of this is that "Picard should look better and in general feel more responsive". Also, many encoding-related bugs were fixed with the transition to Python 3, like the major issue of not supporting non-UTF8 filenames.
  • Pulseaudio: the more things change, the more they stay the same
    Such a classic Linux story. For a video I'll be showing during tonight's planetarium presentation (Sextants, Stars, and Satellites: Celestial Navigation Through the Ages, for anyone in the Los Alamos area), I wanted to get HDMI audio working from my laptop, running Debian Stretch. I'd done that once before on this laptop (HDMI Presentation Setup Part I and Part II) so I had some instructions to follow; but while aplay -l showed the HDMI audio device, aplay -D plughw:0,3 didn't play anything and alsamixer and alsamixergui only showed two devices, not the long list of devices I was used to seeing. Web searches related to Linux HDMI audio all pointed to pulseaudio, which I don't use, and I was having trouble finding anything for plain ALSA without pulse. In the old days, removing pulseaudio used to be the cure for practically every Linux audio problem. But I thought to myself, It's been a couple years since I actually tried pulse, and people have told me it's better now. And it would be a relief to have pulseaudio working so things like Firefox would Just Work. Maybe I should try installing it and see what happens.
  • 4 cool new projects to try in COPR for July 2018
    COPR is a collection of personal repositories for software that isn’t carried in Fedora. Some software doesn’t conform to standards that allow easy packaging. Or it may not meet other Fedora standards, despite being free and open source. COPR can offer these projects outside the Fedora set of packages. Software in COPR isn’t supported by Fedora infrastructure or signed by the project. However, it can be a neat way to try new or experimental software. Here’s a set of new and interesting projects in COPR.
  • SD Times Open-Source Project of the Week: AV1
    Open source supporters and companies are teaming up to offer the next general of video delivery. The Alliance for Open Media (AOMEDIA) is made up of companies like Mozilla, Google, Cisco, Amazon and Netflix, and on a mission to create an open video format and new codec called AV1. In a blog post about the AOMedia Video, or AV1, video codec, Mozilla technical writer Judy DeMocker laid out the numbers; within the next few years, video is expected to account for over 80 percent of Internet traffic. And unbeknownst to many, all of that free, high-quality video content we’ve come to expect all across the Internet costs quite a bit for the people providing it via codec licensing fees. The most common, H.264, is used all over the place to provide the compression required to send video quickly and with quality intact.
    •  

KDE and GNOME: Kubuntu 18.04 Reviewed, Akademy, Cutelyst and GUADEC

  • Kubuntu 18.04 Reviewed in Linux ( Pro ) Magazine
    Kubuntu Linux has been my preferred Linux distribution for more than 10 years. My attraction to the KDE desktop and associated application set, has drawn from Kubuntu user, to a tester, teacher, developer, community manager and councilor. I feel really privileged to be part of, what can only be described as, a remarkable example of the free software, and community development of an exceptional product. This latest release 18.04, effectively the April 2018 release, is a major milestone. It is the first LTS Long Term Support release of Kubuntu running the “Plasma 5” desktop. The improvements are so considerable, in both performance and modern user interface ( UI ) design, that I was really excited about wanting to tell the world about it.
  • Going to Akademy
    Happy to participate in a tradition I’ve admired from afar but never been able to do myself… until this year. My tickets are bought, my passport is issued, and I’m going to Akademy! Hope to see you all there!
  • System76's New Manufacturing Facility, Ubuntu 17.10 Reaches End of Life, Google Cloud Platform Marketplace, Stranded Deep Now Available for Linux and Cutelyst New Release
    Cutelyst, a C++ web framework based on Qt, has a new release. The update includes several bug fixes and some build issues with buildroot. See Dantti's Blog for all the details. Cutelyst is available on GitHub.
  • GUADEC 2018 Videos: Help Wanted
    At this year’s GUADEC in Almería we had a team of volunteers recording the talks in the second room. This was organized very last minute as initially the University were going to do this, but thanks to various efforts (thanks in particular to Adrien Plazas and Bin Li) we managed to record nearly all the talks. There were some issues with sound on both the Friday and Saturday, which Britt Yazel has done his best to overcome using science, and we are now ready to edit and upload the 19 talks that took place in the 2nd room. To bring you the videos from last year we had a team of 5 volunteers from the local team who spent our whole weekend in the Codethink offices. (Although none of us had much prior video editing experience so the morning of the first day was largely spent trying out different video editors to see which had the features we needed and could run without crashing too often… and the afternoon was mostly figuring out how transitions worked in Kdenlive).
  • GUADEC 2018
    This year I attended my second GUADEC in beautiful Almería, Spain. As with the last one I had the opportunity to meet many new people from the extended GNOME community which is always great and I can’t recommend it enough for anybody involved in the project. [...] Flatpak continues to have a lot of healthy discussions at these events. @matthiasclasen made a post summarizing the BoF so check that out for the discussions of the soon landing 1.0 release. So lets start with the Freedesktop 18.07 (date based versioning now!) runtime which is in a much better place than 1.6 and will be solving lots of problems such as multi-arch support and just long term maintainability. I was really pleased to see all of the investment in BuildStream and the runtime from CodeThink which is really needed in the long term.

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