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The Commodity Container Story

Wed, 12/20/2017 - 04:30

TL; DR: The focus maybe on AWS EKS, the managed Kubernetes offering. The future is with AWS Fargate and similar services

How to Sign a File on Linux with GPG

Wed, 12/20/2017 - 02:33

Jack Wallen shows you how to use the open source gpg to sign documents for a cost-effective way to ensure your clients the files you send them are, in fact, from you.

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Tue, 12/19/2017 - 13:12

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Migrating to Linux: Graphical Environments

Tue, 12/19/2017 - 10:03
Title: Migrating to Linux: Graphical Environments19 DecLearn more

4 Successful Open Source Business Models to Consider

Tue, 12/19/2017 - 05:30

When I first discovered open source, the idea of building a business around it seemed counterintuitive. However, as I grew more familiar with the movement, I realized that open source software companies were not an anomaly, rather a result of the freedoms open source offers. As GNU project founder Richard Stallman said of free software, it's "a matter of liberty, not price." Open source is, above all, about the unhindered liberty to create.

The Linux Commands You Should Never Use

Tue, 12/19/2017 - 05:03

Unless, of course, you like killing your machines.

Spider-Man's credo is, "With great power comes great responsibility." That’s also a wise attitude for Linux system administrators to adopt.

Linux And Windows Machines Being Attacked By “Zealot” Campaign To Mine Cryptocurrency

Tue, 12/19/2017 - 04:00

As the cryptocurrency craze is reaching new heights, cybercriminals are looking for new methods to steal digital coins. In the past, we have seen methods like crypto jacking and spearphishing attacks. In a related development, security researchers have found a new malware campaign to mine cryptocurrency.

What Is A Distributed System?

Tue, 12/19/2017 - 04:00

“Hello world!”

The simplest application to write and operate is one that runs in one thread on a single processor. If that’s so easy, why on earth do we ever build anything else? Usually because we also want operational and developmental performance. A single server is a physical and organisational limitation on what you can achieve with an application.

Machine Performance (AKA Things)

There are three main operational performance issues introduced by running on a single machine.

PowerfulSeal: A Testing Tool for Kubernetes Clusters

Tue, 12/19/2017 - 03:30

Bloomberg has adopted Kubernetes, the open source system for deploying and managing containerized applications which has gained a great deal of industry momentum, in its infrastructure. As a result, systems are becoming more distributed than ever before, running on machines scattered around the globe and across the cloud. This means there are more moving parts, any of which could fail for a long list of reasons.

As Kubernetes Surged in Popularity in 2017, It Created a Vibrant Ecosystem

Mon, 12/18/2017 - 09:50

For a technology that the average person has probably never heard of, Kubernetes surged in popularity in 2017 with a particular group of IT pros who are working with container technology. Kubernetes is the orchestration engine that underlies how operations staff deploy and manage containers at scale. (For the low-down on containers, check out this article.)

What Are Containers and Why Should You Care?

Mon, 12/18/2017 - 09:00
Title: What Are Containers and Why Should You Care?18 DecLearn more

How to Market an Open Source Project

Mon, 12/18/2017 - 08:30

The widely experienced and indefatigable Deirdré Straughan presented a talk at Open Source Summit NA on how to market an open source project.

Ops Checklist for Monitoring Kubernetes at Scale

Mon, 12/18/2017 - 06:00

By design, the Kubernetes open source container orchestration engine is not self-monitoring, and a bare installation will typically only have a subset of the monitoring tooling that you will need. In a previous post, we covered the five tools for monitoring Kubernetes in production, at scale, as per recommendations from Kenzan.

Xen Project Member Spotlight: Bitdefender

Mon, 12/18/2017 - 05:30

The Xen Project is comprised of a diverse set of member companies and contributors that are committed to the growth and success of the Xen Project Hypervisor. The Xen Project Hypervisor is a staple technology for server and cloud vendors, and is gaining traction in the embedded, security and automotive space. This blog series highlights the companies contributing to the changes and growth being made to the Xen Project, and how the Xen Project technology bolsters their business.

OpenStack SDN - OpenDaylight With BGP VPN

Mon, 12/18/2017 - 05:03

In this post I’ll demonstrate how to build a simple OpenStack lab with OpenDaylight-managed virtual networking and integrate it with a Cisco IOS-XE data centre gateway using EVPN.

Kali Linux 2017.3 Hands-On: The Best Alternative to Raspbian for Your Raspberry Pi

Mon, 12/18/2017 - 04:00

The latest release of this excellent security, forensic, and penetration testing Linux distribution is everything I have come to expect from the software and more, with both PC (32 and 64 bit) and Raspberry Pi images.

The new release, 2017.3, is primarily a roll-up, incorporating all patches and updates issued since the last release into a clean set of installation images. Remember, though, Kali is a rolling-release distribution, so if you already have it installed you don't need to reinstall from these new images; just make sure that you have the latest updates installed.

CableLabs Announces Two Open Source Projects for NFV

Mon, 12/18/2017 - 03:03

SNAPS is an overarching program at CableLabs to facilitate the adoption of software-defined networking (SDN) and network functions virtualization (NFV) within the CableLabs’ community. The organization says it spearheaded SNAPS to fill in gaps within open source to ease the adoption of SDN and NFV for its cable members.

Top 5 Linux Music Players

Fri, 12/15/2017 - 10:00
Title: Top 5 Linux Music Players15 DecLearn more

Linux Kernel Developer: Thomas Gleixner

Fri, 12/15/2017 - 08:30

Since the beginning of the Git era (that is, the 2.6.11 release in 2005), a total of 15,637 developers have contributed to the Linux kernel, according to the recent Linux Kernel Development Report, written by Jonathan Corbet and Greg Kroah-Hartman.

One of the top 30 developers is Thomas Gleixner, CTO at Linutronix GmbH, who serves in various kernel maintainer roles. In this article, Gleixner answers a few questions about his contributions to the Linux kernel.

This Week in Open Source News: Bell Launches Open Source ONAP, Bug Bounty via Euro Commission & More

Fri, 12/15/2017 - 08:00
Title: This Week in Open Source News: Bell Launches Open Source ONAP, Bug Bounty via Euro Commission & More15 DecLearn more