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Showing 226 results for the search term "John McDermott".


Using the Wifi Analyzer App to Examine Networks

One of my favorite tools on my Kindle and phone is Wifi Analyzer. It is a tool that shows information about Wi-Fi networks in range of the device. I am scheduled to teach Learning Tree’s Introduction to Networking soon, and this is a tool I demonstrate to participants. Of course, neither this post nor my […]



How to Practice Linux Skills for Free

Colleagues and friends often ask me how they can learn or practice Linux when they only have Windows at work and a single family Windows computer at home, for free. That’s a good question, and there are a couple of different answers. Before we get to the free methods, I want to acknowledge that there […]



Improve Your Facilitation by Using the PO Technique

One of my favorite tools to use when I am facilitating a meeting is PO, which is short for provocation operation. Edward de Bono coined the word PO for use in the lateral thinking process. The idea of PO is to help move thinking or a discussion onward by allowing out-of-the-box thinking. It is used to introduce an […]



Integrating Amazon Lex with Amazon Lambda – Instinctive Language in the Cloud

Amazon announced in a blog post on April 19 that they had made their natural language tool, Amazon Lex, generally available. First of all, Amazon Lex is – according to the Amazon website – “a service for building conversational interfaces into any application using voice and text.” Lex provides natural language understanding and speech recognition; […]



The Mirai Botnet and My Old Advice

Security expert and writer Brian Krebs was the victim of a distributed denial of service attack that used the Mirai botnet. His site discusses the source code used on the compromised computers. Others have provided analysis of the code. The software is used to infect Internet of Things or IoT devices. Examples include webcams, DVRs, […]


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