Language Selection

English French German Italian Portuguese Spanish

LWN

Syndicate content
LWN.net is a comprehensive source of news and opinions from and about the Linux community. This is the main LWN.net feed, listing all articles which are posted to the site front page.
Updated: 38 min 30 sec ago

EPEL 8.0 released

Wednesday 14th of August 2019 03:45:44 PM
EPEL 8.0 is out. "EPEL stands for Extra Packages for Enterprise Linux and is a subcommunity of the Fedora and CentOS projects aimed at bringing a subset of packages out of Fedora releases ready to be used and installed on various Red Hat Enterprise Linux (RHEL)." Beyond the update to RHEL (and CentOS) 8, this release features a new faster-moving "playground" package stream and support for the s390 architecture.

Kroah-Hartman: Patch Workflow With Mutt - 2019

Wednesday 14th of August 2019 03:21:18 PM
For those interested in the details of how one kernel developer works: Greg Kroah-Hartman has documented his email workflow in great detail. "The ability to edit a single message directly within my email client is essential. I end up having to fix up changelog text, editing the subject line to be correct, fixing the mail headers to not do foolish things with text formats, and in some cases, editing the patch itself for when it is corrupted or needs to be fixed (I want a Linkedin skill badge for 'can edit diff files by hand and have them still work')"

Security updates for Wednesday

Wednesday 14th of August 2019 02:53:55 PM
Security updates have been issued by Debian (kernel, linux-4.9, otrs2, and tomcat8), Fedora (igraph and jhead), openSUSE (ansible, GraphicsMagick, kconfig, kdelibs4, live555, mumble, phpMyAdmin, proftpd, python-Django, and znc), Oracle (kernel and openssl), Red Hat (kernel, openssl, and rh-mysql80-mysql), Scientific Linux (kernel and openssl), Slackware (kernel), SUSE (containerd, docker, docker-runc, golang-github-docker-libnetwork and mariadb-100), and Ubuntu (linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon, linux-aws, linux-aws-hwe, linux-lts-xenial, linux-aws, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon, linux-snapdragon, php5, php7.0, php7.2, and wpa).

[$] Corner cases and exception types

Tuesday 13th of August 2019 09:13:05 PM
Some unanticipated corner cases with Python's new "walrus" operator—described in our Python 3.8 overview—have cropped up recently. The problematic uses of the operator will be turned into errors before the final release, but just what exception should be raised came into question. It seems that the exception specified in the PEP for the operator may not really be the best choice, as a recent discussion hashed out.

[$] Long-term get_user_pages() and truncate(): solved at last?

Tuesday 13th of August 2019 06:53:58 PM
Technologies like RDMA benefit from the ability to map file-backed pages into memory. This benefit extends to persistent-memory devices, where the backing store for the file can be mapped directly without the need to go through the kernel's page cache. There is a fundamental conflict, though, between mapping a file's backing store directly and letting the filesystem code modify that file's on-disk layout, especially when the mapping is held in place for a long time (as RDMA is wont to do). The problem seems intractable, but there may yet be a solution in the form of this patch set (marked "V1,000,002") from Ira Weiny.

Security updates for Tuesday

Tuesday 13th of August 2019 02:32:18 PM
Security updates have been issued by Arch Linux (chromium, postgresql, and postgresql-libs), Debian (atril, chromium, evince, ghostscript, jackson-databind, kernel, and php5), Fedora (kf5-kconfig, mingw-sqlite, pam-u2f, and poppler), Mageia (kernel), openSUSE (aubio, chromium, kconfig, kdelibs4, nodejs10, osc, and zstd), Red Hat (ghostscript), and Ubuntu (ghostscript and MariaDB).

Xfce 4.14 released

Monday 12th of August 2019 05:05:13 PM
The Xfce desktop 4.14 is out. "In this 4.14 cycle the main goal was to port all core components to Gtk3 (over Gtk2) and GDBus (over D-Bus GLib). Most components also received GObject Introspection support. Along the way we ended up polishing our user experience, introducing quite a few new features and improvements."

LXD 3.16 released

Monday 12th of August 2019 04:15:31 PM
Version 3.16 of the LXD system container manager has been released. "This release includes a number of new features, configuration options and improvements to the command line tool. Behind the scenes, a lot of work has gone into reworking the infrastructure used for container devices with the nic, infiniband and proxy devices having switched over to the new logic. This should result in much cleaner code that is easier to debug, better tests and more thorough error handling and configuration validation."

GNU Radio 3.8.0.0 released

Monday 12th of August 2019 03:54:15 PM
GNU Radio is an extensive framework for software-defined radio development. The 3.8.0.0 release is finally available. "It's the first minor release version since more than six years, not without pride this community stands to face the brightest future SDR on general purpose hardware ever had."

Two stable kernels

Monday 12th of August 2019 02:35:59 PM
Stable kernels 4.9.189 and 4.4.189 have been released. They both contain important fixes and users should upgrade.

Security updates for Monday

Monday 12th of August 2019 02:31:31 PM
Security updates have been issued by Debian (fusiondirectory, gosa, kconfig, kernel, pango1.0, and python-django), Fedora (aubio, icedtea-web, java-1.8.0-openjdk, kernel, kernel-headers, kernel-tools, libslirp, openqa, os-autoinst, and upx), Gentoo (JasPer, libvncserver, and redis), Mageia (cyrus-imapd and php), Oracle (kernel), Red Hat (chromium-browser, cockpit-ovirt, Red Hat Virtualization, and rhvm-appliance), SUSE (ImageMagick, libvirt, python, and wireshark), and Ubuntu (poppler).

Kernel prepatch 5.3-rc4

Monday 12th of August 2019 01:34:29 PM
The 5.3-rc4 kernel prepatch has been released for testing. "I mentioned last week that rc3 was unusually small. Well, we fixed that."

Stable kernels 5.2.8, 4.19.66, and 4.14.138

Friday 9th of August 2019 05:58:42 PM
Greg Kroah-Hartman has announced the release of three new stable kernels: 5.2.8, 4.19.66, and 4.14.138. As usual, the kernels contain important fixes, so users should upgrade.

[$] Akaunting: a web-based accounting system

Friday 9th of August 2019 04:31:27 PM
One of these years, LWN will have a new accounting system based on free software. That transition has not yet happened, though, despite the expending of a fair amount of energy into researching alternatives. Your editor recently became aware of a system called Akaunting, so a look seemed worthwhile. This tool may have the features that some users want, but it seems clear that your editor's quest is not done yet.

A Kubernetes security assessment

Friday 9th of August 2019 04:12:23 PM
The Kubernetes community has posted the extensive results [PDF] of a security assessment performed earlier this year. "Overall, Kubernetes is a large system with significant operational complexity. The assessment team found configuration and deployment of Kubernetes to be non-trivial, with certain components having confusing default settings, missing operational controls, and implicitly defined security controls. Also, the state of the Kubernetes codebase has significant room for improvement. The codebase is large and complex, with large sections of code containing minimal documentation and numerous dependencies, including systems external to Kubernetes. There are many cases of logic re-implementation within the codebase which could be centralized into supporting libraries to reduce complexity, facilitate easier patching, and reduce the burden of documentation across disparate areas of the codebase."

Security updates for Friday

Friday 9th of August 2019 01:47:46 PM
Security updates have been issued by Debian (postgresql-11, postgresql-9.4, and postgresql-9.6), Fedora (exiv2), openSUSE (python-Django and vlc), Oracle (kernel), Red Hat (qemu-kvm-rhev), SUSE (evince, nodejs10, python, and squid), and Ubuntu (postgresql-10, postgresql-11, postgresql-9.5).

The Document Foundation announces LibreOffice 6.3

Thursday 8th of August 2019 06:00:11 PM
The Document Foundation has announced the release of LibreOffice 6.3. This new version of the free-software office suite has lots of new features, better performance, and more interoperability with proprietary formats. In particular, documents can now be redacted to hide sensitive information before they are shared or exported, there are user-interface changes to make it more compact and easier to work with, a FOURIER function has been added to Calc, editable PDFs can be designed more easily, multiple improvements have been made in the Microsoft Office format handling, and more. Beyond that: "Writer and Calc performance has been improved by an order of magnitude based on documents provided by end users: text files with different bookmarks, tables and embedded fonts, large ODS/XLSX spreadsheets, and Calc files with VLOOKUP load and render more quickly. Saving Calc spreadsheets as XLS files is also faster."

[$] Grand Schemozzle: Spectre continues to haunt

Thursday 8th of August 2019 03:08:33 PM
The Spectre v1 hardware vulnerability is often characterized as allowing array bounds checks to be bypassed via speculative execution. While that is true, it is not the full extent of the shenanigans allowed by this particular class of vulnerabilities. For a demonstration of that fact, one need look no further than the "SWAPGS vulnerability" known as CVE-2019-1125 to the wider world or as "Grand Schemozzle" to the select group of developers who addressed it in the Linux kernel.

Security updates for Thursday

Thursday 8th of August 2019 01:46:13 PM
Security updates have been issued by Arch Linux (exim, python-django, python2-django, and sdl2), Debian (proftpd-dfsg), Fedora (php and sqlite), openSUSE (proftpd), Red Hat (kernel), Slackware (kdelibs), SUSE (nodejs10, squid, and tcpdump), and Ubuntu (php5 and ruby-rack).

Linux Journal ceases publication

Thursday 8th of August 2019 03:16:34 AM
It is with sadness that we report that Linux Journal has ceased publication. The magazine announced its demise at the end of 2017, then was happily reborn in early 2018, but apparently that was not to last. Editor Kyle Rankin posted "An Awkward Goodbye" on August 7. "After dying and being revived, it was finally starting to look like some day soon we would be able to walk on our own. Unfortunately, we didn't get healthy enough fast enough, and when we found out we needed to walk on our own strength, we simply couldn't. So here we are giving our second, much more awkward, goodbye. What happens now? We gave each other a proper hug during the first goodbye, do we hug again this time? Do we do the hand-shake-that-turns-into-a-single-arm-hug thing? Do we just sort of wave and smile?" LJ will be missed.

More in Tux Machines

Audiocasts/Shows: Linux in the Ham Shack and Linux Headlines

  • LHS Episode #302: The End of Kenwood

    Welcome to Episode 302 of Linux in the Ham Shack. In this short topic episode, the hosts discuss the potential end of Kenwood in the amateur radio market, emcom in Montucky, Storm Area 51, HF on satellites, a huge update for PulseAudio, the Linux 5.3 kernel and much more. Thank you for listening and have a fantastic week.

  • 09/19/2019 | Linux Headlines

    Fresh init system controversy at the Debian project, a more scalable Samba, and a big release for LLVM. Plus GitHub's latest security steps and a new version of OBS Studio.

Android Leftovers

When Diverse Network ASICs Meet A Unifying Operating System

And it has also been a decade since switch upstart Arista Networks launched its Extensible Operating System, or EOS, which is derived from Linux. [...] The cross-platform nature of ArcOS, coupled with its ability to run in any function on the network, could turn out to be the key differentiator. A lot of these other NOSes were point solutions that could only be deployed in certain parts of the network, and that just creates animosity with the incumbent vendors that dominate the rest of the networking stack. Given the mission-critical nature of networking in the modern datacenter, it costs a great deal to qualify a new network operating system, and it can take a lot of time. If ArcOS can run across more platforms, qualify faster, and do more jobs in the network, then, says Garg, it has a good chance of shaking up switching and routing. “That totally changes the business conversation and the TCO advantages that we can bring to a customer across the entirety of their network.” Read more

Server: Kubernetes/OpenShift, OpenStack, and Red Hat's Ansible

  • 9 steps to awesome with Kubernetes/OpenShift presented by Burr Sutter

    Burr Sutter gave a terrific talk in India in July, where he laid out the terms, systems and processes needed to setup Kubernetes for developers. This is an introductory presentation, which may be useful for your larger community of Kubernetes users once you’ve already setup User Provisioned Infrastructure (UPI) in Red Hat OpenShift for them, though it does go into the deeper details of actually running the a cluster. To follow along, Burr created an accompanying GitHub repository, so you too can learn how to setup an awesome Kubernetes cluster in just 9 steps.

  • Weaveworks Named a Top Kubernetes Contributor

    But anyone who knows the history of Weaveworks might not be too surprised by this. Weaveworks has been a major champion of Kubernetes since the very beginning. It might not be too much of a coincidence that Weaveworks was incorporated only a few weeks after Kubernetes was open sourced, five years ago. In addition to this, the very first elected chair of the CNCF’s Technical Oversight Committee, responsible for technical leadership to the Cloud Native Foundation was also headed up by our CEO, Alexis Richardson(@monadic) (soon to be replaced by the awesome Liz Rice (@lizrice) of Aqua Security).

  • Improving trust in the cloud with OpenStack and AMD SEV

    This post contains an exciting announcement, but first I need to provide some context! Ever heard that joke “the cloud is just someone else’s computer”? Of course it’s a gross over-simplification, but there’s more than a grain of truth in it. And that raises the question: if your applications are running in someone else’s data-centre, how can you trust that they’re not being snooped upon, or worse, invasively tampered with?

  • Red Hat OpenStack Platform 15 Enhances Infrastructure Security and Cloud-Native Integration Across the Open Hybrid Cloud

    Red Hat, Inc., the world's leading provider of open source solutions, today announced the general availability of Red Hat OpenStack Platform 15, the latest version of its highly scalable and agile cloud Infrastructure-as-a-Service (IaaS) solution. Based on the OpenStack community’s "Stein" release, Red Hat OpenStack Platform 15 adds performance and cloud security enhancements and expands the platform’s ecosystem of supported hardware, helping IT organizations to more quickly and more securely support demanding production workloads. Given the role of Linux as the foundation for hybrid cloud, customers can also benefit from a more secure, flexible and intelligent Linux operating system underpinning their private cloud deployments with Red Hat Enterprise Linux 8.

  • Red Hat Ansible Automation Accelerates Past Major Adoption Milestone, Now Manages More Than Four Million Customer Systems Worldwide

    Red Hat, Inc., the world's leading provider of open source solutions, today announced that more than four million customer systems worldwide are now automated by Red Hat Ansible Automation. Customers, including Energy Market Company, Microsoft, Reserve Bank of New Zealand and Surescripts all use Red Hat Ansible Automation to automate and orchestrate their IT operations, helping to expand automation across IT stacks. According to a blog post by Chris Gardner with Forrester Research, who was the author of The Forrester Wave™: Infrastructure Automation Platforms, Q3 2019, "Infrastructure automation isn’t just on-premises or the cloud. It’s at the edge and everywhere in between."1 Since its launch in 2013, Red Hat Ansible Automation has provided a single tool to help organizations automate across IT operations and development, including infrastructure, networks, cloud, security and beyond.