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Kubernetes
Learn how Kubernetes keeps state with etcd and how normal Linux networking ties everything together in this Kubernetes course preview.

Keeping State and Networking in Kubernetes

In our previous installments of this series (see below), we learned a lot of neat things about Kubernetes. We learned that it is descended from the secret Google Borg project, its architecture, and why it is a good choice for your datacenter. Now we'll learn how Kubernetes keeps state with etcd,...
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The Cloud Foundry Approach to Container Storage and Security

Recently, The New Stack published an article titled “Containers and Storage: Why We Aren’t There Yet” covering a talk from IBM’s James Bottomley at the Linux Foundation’s Vault conference in March. Both the talk and article focused on one of the central problems we’ve been working to address in the...
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The Story of Getting SSH Port 22

The SSH (Secure Shell) port is 22. It is not a co-incidence. This is a story I (Tatu Ylonen) haven't told before. I wrote the initial version of SSH in Spring 1995. It was a time when telnet and FTP were widely used. Anyway, I designed SSH to replace both telnet (port 23) and ftp (port 21). Port 22...
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Protect Your Management Interfaces

When it comes to architecture design, one area that is often not given due consideration is the protection of the management interfaces used by administrators or operators to configure their infrastructure. These are the interfaces used to perform privileged actions on systems, and as such they're...
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Q&A with Mark Hinkle, the New Executive Director for the Node.js Foundation

These days, Node.js is under the hood of everything from the web, the Internet of Things and desktop applications to microservice architectures. Node’s 15 million-plus downloads per month, and more than a billion package downloads per week, render it the world’s biggest open source platform. The ...
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Introducing Moby Project

Since Docker democratized software containers four years ago, a whole ecosystem grew around containerization and in this compressed time period it has gone through two distinct phases of growth. In each of these two phases, the model for producing container systems evolved to adapt to the size and...
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5 Ways to Succeed at Learning a Programming Language

Whether you're taking up programming for the first time, or learning your 50th language, you might ask, "What's the best way to learn to program?" I surveyed dozens of people who taught themselves to program in Rust as part of my OSCON talk in 2016, and asked the expert autodidacts what advice they...
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Lessons Learned with Docker

I've been working with Docker on a semi-regular basis for a couple months now. I am the technical lead for a product that not only has the usual dev and test, but multiple user-facing deployments. These deployments may have 5 or 50 users (or more), and may be accessed over the internet by external...
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The Architecture of the Web Is Unsafe for Today's World

Twenty-eight years ago, British computer scientist Tim Berners-Lee proposed a system to link text documents across a computer network. It changed the way the world communicates and does business. From its humble beginnings, the Internet has become a complex, dynamic, and heterogeneous environment....
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Zephyr ELC
Fabien Parent and Neil Armstrong of BayLibre shared their experiences in developing a wearable device with Zephyr at Embedded Linux Conference.

Building a Wearable Device with Zephyr

The Linux Foundation’s open source Zephyr Project received considerable attention at this February’s Embedded Linux Conference (ELC). Although there are still no shipping products running this lightweight real-time operating system (RTOS) for microcontrollers, Fabien Parent and Neil Armstrong of...
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