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QEMU 2.2-rc3 Released, Final Release Pushed Back By Couple Days

Filed under
Linux
Server

QEMU 2.2-rc3 was released today but there's still a few release-critical bugs that will warrant an unscheduled release candidate and thus push back the official QEMU 2.2 version, hopefully only by a few days.

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Docker Update Fixes Pair of Critical Security flaws

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Server
OSS

The open-source Docker container virtualization technology has emerged as one of the hottest and most hyped technologies of the year. Docker, however, isn't immune from security vulnerabilities, as a pair of recent updates illustrate.

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Linux admins: It's time to relearn the art of compiling apps

Filed under
GNU
Linux
Server

It used to be that open source software was released only as source code and had to be compiled wherever it was needed. Obviously, that's changed. Today, some will even tell you that compiling source is an improper and problematic way to install software. Tomorrow, it may become more standard than they think.

While compiling source is still the basis of many BSDs (though you can get binary packages easily enough), package management came to Linux early on with RPM and branched out everywhere ever since. Package support on Debian and Ubuntu is simply massive. Fedora has a huge number of packages, as do RHEL and CentOS, though the packages available for the latter are generally far older for legacy and stability reasons.

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Contain yourself: The layman's guide to Docker

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GNU
Linux
Server

Welcome to the age of containerization, where an ecosystem led by startup Docker is leading IT organizations to ineffable peaks of efficiency, helping them scale their workloads ever-higher, and probably baking them a nice cake to boot (it's my birthday, I have cake on the brain, sue me). Microsoft, Google and Amazon Web Services are all tripping over themselves to make sure prospective customers know that their clouds are the place to be if you want to get the most from Docker.

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SDN in action: Hands-on with Cumulus Linux

Filed under
Linux
Server

The stage is set for SDN (software-defined networking) to change the way we push data through our infrastructures, with the promises of more agile network provisioning and management, as well as more affordable network hardware. But for many, the SDN concept is still amorphous. What does SDN look like in practice?

To shed light on this question, I sat down with a few Dell Networking S6000 switches running Cumulus Linux 2.3. There are many approaches to an SDN solution, but one of the most significant is the advent of white-box switches and à la carte switch firmware. This is the essence of the solution offered by Cumulus Networks.

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Six Clicks: The six fastest computers in the world

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GNU
Linux
Server

In November 2014, the top six supercomputers all run Linux, but that's about the only thing they have in common.

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Linux still owns supercomputing

Filed under
GNU
Linux
Server

Once more the best of the best supercomputer experts came together to decide which are the fastest of the fast computers. Number one with a bullet continues to be Tianhe-2, aka Milky Way-2, a Chinese supercomputer developed by China’s National University of Defense Technology. Its operating system? Linux of course.

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4 ways Docker is remaking Linux

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GNU
Linux
Server

When containers first appeared in Linux, the natural assumption was that it would be yet another of many technologies that Linux has assimilated.

But then came Docker, a novel use of containers to make apps portable and self-contained. It's set Linux vendors scrambling, both to to rethink the way containers are implemented in Linux and to see how Linux can be reworked around Docker's application-centric model.

Here's how four major enterprise Linux distributions are readying themselves for a Docker-ized future.

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ownCloud Enables True Universal File Access via Cloud Service

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Server
OSS

ownCloud uses its own server-to-server sharing capability to bypass all the Web interfaces that trip up seamless file sharing across silos.

Anybody who says there's nothing new under the sun--or clouds--ought to read this story.

Cloud storage and collaboration service provider ownCloud (yes, with a lower-case "o") has found a way to sync up files from all over the place--from the cloud, to enterprise silos, to personal connected storage devices, to other disparate places--and make them easily available and sharable using its own cloud (hence, ownCloud) common file access layer.

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4MLinux Server Edition 10.1 Beta Is a Small Server with a Desktop Environment

Filed under
Linux
Server

The 4MLinux developer is managing the size of his distributions down to the last bit and he's doing the same with the server edition. In fact, 4MLinux distros are well known for the fact that they are very small, regardless of their purpose. The Server edition follows the same cardinal rule and weighs just 192 MB, which is almost ridiculous.

Also, it's worth pointing out that 4MLinux Server Edition comes with a desktop environment, which is rather unusual. Most of the Linux server distros don't have any kind of desktop and it's not really required. On the other hand, it's nice to see that a developer is going the extra mile to provide a friendly and easy to use interface for his users.

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Ubuntu 17.10 (Artful Aardvark) Reached End of Life, Upgrade to Ubuntu 18.04 LTS

Released nine months ago on October 19, 2017, Ubuntu 17.10 was dubbed "Artful Aardvark" by Canonical CEO Mark Shuttleworth because it was the first release of the Ubuntu Linux operating system to ship with the GNOME desktop environment instead of Unity on the Desktop edition. To due to the sudden move from Unity to GNOME, Ubuntu 17.10 brought several substantial changes, such as the switch to the next-generation Wayland display server by default instead of X.Org Server, a decision that was reverted with the release of Ubuntu 18.04 LTS (Bionic Beaver), and the discontinuation of the Ubuntu GNOME flavor. Read more

Android Leftovers

How to add Linux to your Chromebook

It's long been possible to run Linux on a Chromebook. That's no surprise. After all, Chrome OS is a Linux variant. But, doing it by using either Crouton in a chroot container or Gallium OS, a Xubuntu Chromebook-specific Linux variant, wasn't easy. Then, Google announced it was bringing a completely integrated Linux desktop to the Chromebook. Today, with a properly-equipped Chromebook and the bravery to run canary code, you can run Debian Linux on your Chromebook. Here's how to do it. This new Chromebook Linux feature is Crostini, the umbrella technology for getting Linux running with Chrome OS. Crostini gets enough Linux running to run KVM, Linux's built-in virtual machine (VM). On top of this, Crostini starts and runs LXC containers. You won't see it, unless you look closely, but it's in those containers that your Debian Linux instances are running. Read more

Linux File Server Guide

Linux file servers play an essential role. The ability to share files is a basic expectation with any modern operating system in the workplace. When using one of the popular Linux distributions, you have a few different file sharing options to choose from. Some of them are simple but not that secure. Others are highly secure, yet require some know-how to set up initially. Once set up on a dedicated machine, you can utilize these file sharing technologies on a dedicated file server. This article will address these technologies and provide some guidance on choosing one option over another. Read more