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Linux

Leftovers: Screenshots

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Linux

New AVX/AVX2 Crypto Code For The Linux Kernel

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Linux

While we've already seen many AVX/AVX2 Linux kernel patches in recent months out of Intel's Open-Source Technology Center, there's still more ahead. The latest patches were published on Wednesday and provide an AVX and AVX2 version of AESNI-GCM encode/decode. Writing the specific code for the Advanced Vector Extensiuons is worthwhile as the reported performance gains can be nearly a 20% speed-up and the beenefits will be even greater on the upcoming Intel Broadwell processors.

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Knock: A Linux kernel patch for NAT-compatible, stealthy port knocking

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Linux

The point of a port knock tool is to make TCP servers respond to TCP SYN request only after a pre-defined sequence of packets have been sent and received. It’s like having a club house whose doors open only after a set number and sequence of knocks. There have been tools like in the past, but as far as I know, all have been in user space. Knock is thus likely the first port knock tool for Linux in kernel space.

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Will Canonical force Linux Mint to license Ubuntu binary packages?

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Linux

The article is being quite kind when it calls the possibility of licensing "short-sighted." I think it will anger many Linux users and developers. Whether or not Canonical has the right to do it is totally beside the point. The mere fact they are considering it indicates that the company may have totally lost touch with the true spirit of the open source community.

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What’s New In CentOS 6.5?

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Linux

The pace of development for CentOS can sometimes seem frustratingly slow. But, for an industry that values stability and predictability over access to bleeding edge features, a distribution that’s slow to change is a virtue. So, when CentOS does have an upgrade, it’s definitely worth paying attention to. In the most recent release, there are a number of features that will be of interest to web hosting companies and we are going to have a look at some of the major changes here.

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Linux Likely to Run Google Robots and Amazon Drones

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Linux

When Andy Rubin left his job heading up Google's Android team earlier this year, it turned out he was heading for an even more droid-like project: robots. Rubin revealed to The New York Times that the Google "moonshot" he's been working on is a robot project.

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MintBox 2 review – not as fresh, still as minty

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Linux

The MintBox 2 is here, and it’s more powerful than ever. Just how much power are you getting for nearly £400 though?

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Valve SteamOS set for launch on Friday

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Linux
Gaming

Valve's Linux-based gaming-centric operating system SteamOS will be with us by the weekend, as the company plans to get the first prototype Steam Machine boxes in front of beta testers tomorrow.

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Btrfs hands-on: Exploring the error recovery features of the new Linux file system

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This is my final post in this series about the btrfs filesystem. The first in the series covered btrfs basics, the second was resizing, multiple volumes and devices, the third was RAID and Redundancy,and the fourth and most recent was subvolumes and snapshots.

I think (and hope) that all of those together give a reasonable overview of what the btrfs filesystem is, what you can do with it, and how you can do some of those things. In this post I will wrap up a couple of loose ends - error recovery, and integration with other standard Linux utilities - and try to give a recap of the series as a whole. For complete and authoritative information, please refer to the Btrfs Wiki at kernel.org.

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Leftovers: OSS

OSS in the Back End

  • Open Source NFV Part Four: Open Source MANO
    Defined in ETSI ISG NFV architecture, MANO (Management and Network Orchestration) is a layer — a combination of multiple functional entities — that manages and orchestrates the cloud infrastructure, resources and services. It is comprised of, mainly, three different entities — NFV Orchestrator, VNF Manager and Virtual Infrastructure Manager (VIM). The figure below highlights the MANO part of the ETSI NFV architecture.
  • After the hype: Where containers make sense for IT organizations
    Container software and its related technologies are on fire, winning the hearts and minds of thousands of developers and catching the attention of hundreds of enterprises, as evidenced by the huge number of attendees at this week’s DockerCon 2016 event. The big tech companies are going all in. Google, IBM, Microsoft and many others were out in full force at DockerCon, scrambling to demonstrate how they’re investing in and supporting containers. Recent surveys indicate that container adoption is surging, with legions of users reporting they’re ready to take the next step and move from testing to production. Such is the popularity of containers that SiliconANGLE founder and theCUBE host John Furrier was prompted to proclaim that, thanks to containers, “DevOps is now mainstream.” That will change the game for those who invest in containers while causing “a world of hurt” for those who have yet to adapt, Furrier said.
  • Is Apstra SDN? Same idea, different angle
    The company’s product, called Apstra Operating System (AOS), takes policies based on the enterprise’s intent and automatically translates them into settings on network devices from multiple vendors. When the IT department wants to add a new component to the data center, AOS is designed to figure out what needed changes would flow from that addition and carry them out. The distributed OS is vendor-agnostic. It will work with devices from Cisco Systems, Hewlett Packard Enterprise, Juniper Networks, Cumulus Networks, the Open Compute Project and others.
  • MapR Launches New Partner Program for Open Source Data Analytics
    Converged data vendor MapR has launched a new global partner program for resellers and distributors to leverage the company's integrated data storage, processing and analytics platform.
  • A Seamless Monitoring System for Apache Mesos Clusters
  • All Marathons Need a Runner. Introducing Pheidippides
    Activision Publishing, a computer games publisher, uses a Mesos-based platform to manage vast quantities of data collected from players to automate much of the gameplay behavior. To address a critical configuration management problem, James Humphrey and John Dennison built a rather elegant solution that puts all configurations in a single place, and named it Pheidippides.
  • New Tools and Techniques for Managing and Monitoring Mesos
    The platform includes a large number of tools including Logstash, Elasticsearch, InfluxDB, and Kibana.
  • BlueData Can Run Hadoop on AWS, Leave Data on Premises
    We've been watching the Big Data space pick up momentum this year, and Big Data as a Service is one of the most interesting new branches of this trend to follow. In a new development in this space, BlueData, provider of a leading Big-Data-as-a-Service software platform, has announced that the enterprise edition of its BlueData EPIC software will run on Amazon Web Services (AWS) and other public clouds. Essentially, users can now run their cloud and computing applications and services in an Amazon Web Services (AWS) instance while keeping data on-premises, which is required for some companies in the European Union.

today's howtos

Industrial SBC builds on Raspberry Pi Compute Module

On Kickstarter, a “MyPi” industrial SBC using the RPi Compute Module offers a mini-PCIe slot, serial port, wide-range power, and modular expansion. You might wonder why in 2016 someone would introduce a sandwich-style single board computer built around the aging, ARM11 based COM version of the original Raspberry Pi, the Raspberry Pi Compute Module. First off, there are still plenty of industrial applications that don’t need much CPU horsepower, and second, the Compute Module is still the only COM based on Raspberry Pi hardware, although the cheaper, somewhat COM-like Raspberry Pi Zero, which has the same 700MHz processor, comes close. Read more