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Ubuntu 18.04.2 Refreshes This Long-Term Support Linux Distro

Do you want the best compromise between the latest and greatest open-source software and the stability of an established Linux? If that's you, and you're an Ubuntu user, then you want Ubuntu 18.04.2. This latest version of Ubuntu 18.04, the Long-Term Support (LTS) edition, will be supported until...
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6 Must-Attend Talks at Cloud Foundry Summit on Serverless, Knative, Microservices

Tech conferences often feel the same to me. It’s all about the ratios. Too much technical stuff and you wonder how any of it actually applies to your business problems. Too much business-speak and you might end up looking for a slide deck escape hatch to take you to a code repository. Like...
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The Hard Part in Becoming a Command Line Wizard

I’ve long been impressed by shell one-liners. They seem like magical incantations. Pipe a few terse commands together, et voilà! Out pops the solution to a problem that would seem to require pages of code. Are these one-liners real or mythology? To some extent, they’re both. Below I’ll give a...
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Zowe
Zowe 1.0 offers a modern interface to interact with the power of z/OS on the mainframe.

Zowe Makes Mainframe Evergreen

Mainframes are, and will continue to be, a bedrock for industries and organizations that run mission-critical applications. In one way or another, all of us are mainframe users. Every time you make an online transaction or make a reservation, for example, you are using a mainframe. According to IBM...
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Why Data Scientists Love Kubernetes

Let's start with an uncontroversial point: Software developers and system operators love Kubernetes as a way to deploy and manage applications in Linux containers. Linux containers provide the foundation for reproducible builds and deployments, but Kubernetes and its ecosystem provide essential...
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First Look: Tuxedo InfinityCube Linux Desktop PC With Intel Core-i7 8700

I've played with Linux on several of my own machines, but I recently unboxed my first custom-built Linux PC courtesy of Tuxedo Computers. It's called the InfinityCube v9, and it's left me very impressed. In fact I've been leaning on it more than the beefy AMD Ryzen 1950X rig I built because it's...
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Getting Started with the cat Command

The Linux cat and zcat commands are more useful than you may realize. Cat is a fairly simple tool designed to concatenate and write file(s) to your screen, which is known as standard output (stdout). It is part of the GNU Core Utils released under the GPLv3+ license. You can expect to find it in...
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The Monty Hall Problem

The original and most simple scenario of the Monty Hall problem is this: You are in a prize contest and in front of you there are three doors (A, B and C). Behind one of the doors is a prize (Car), while behind others is a loss (Goat). You first choose a door (let’s say door A). The contest host...
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Runc and CVE-2019-5736

This morning a container escape vulnerability in runc was announced. We wanted to provide some guidance to Kubernetes users to ensure everyone is safe and secure. What Is Runc? Very briefly, runc is the low-level tool which does the heavy lifting of spawning a Linux container. Other tools like...
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Building Trust in Open Source: A Look Inside the OpenChain Project

Open source software provides businesses with a number of benefits including cost, flexibility and freedom. This freely distributed software can also be easily altered by any business that is familiar with its source code.  However, licensing issues do arise which could present a major hurdle for...
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