Luke Hebert
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Welcome to the articles section, where business, technology, and everyday problem-solving meet. You’ll find practical how-tos, troubleshooting notes from the trenches, and the occasional take on whatever’s happening in the world. Some posts will save you time, some will spark ideas, and a few will just be me thinking out loud. Grab a coffee and dig in.

Xen Vitualization with Bridged Networking April 5, 2014

Xen Vitualization with Bridged Networking

Xen is an open-source type-1 or bare metal hypervisor, which makes it possible to run many instances of an operating system or entirely different operating systems in parallel on a single machine (or host).
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Where's all my RAM? March 21, 2014

Where's all my RAM?

Ever wonder why the output of free -m seems to make it look like your system is out of memory?
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Calculating Downtime On a Linux System March 15, 2014

Calculating Downtime On a Linux System

Whether you are an engineer or an end user, most of us who work on critical systems find ourselves concerned with the availability of services those systems provide every day.
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Centering September 6, 2012

Centering

Centering is the mindfulness practice of bringing your awareness into the present moment to establish mental stability and inner calm.
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The Inverted-U Model September 6, 2012

The Inverted-U Model

The inverted U-model, also known as the Yerkes-Dodson law, states that performance increases with physiological or mental arousal, but only up to an optimal point. When levels of arousal or stress become too high, performance begins to decline efficiency drops.
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Assertiveness January 27, 2012

Assertiveness

Do you consider yourself to be assertive? And what does being assertive mean to you? Does it mean exercising your rights all the time, every time?
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