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Tips and Tricks

Safety First

Safety First We have all heard about the Dark Web, but not many people really understand its uses. Unfortunately, one of the many things it is often used for, is the illegal trade of stolen information – yours and mine! Let me digress for a moment… Back in history, travel was one of the most…

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The Invisible Achilles’ Heel of Network Security

The Invisible Achilles’ Heel of Network Security Not too long ago, we tweeted an article about the biggest hacks of 2018 and yet another has just been revealed. This is becoming commonplace. The trend seems to be indicating that too many people have become complacent in their security protection. Hacking of any company’s data is BIG business –…

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WLC and AP Power settings

AP Power settings made easy To fully understand and sometimes troubleshoot our wireless networks, we need to know exactly what is going on with our APs, especially what power they are outputting. So in this post we are going to look at AP Power settings made easy. The Problem – Different AP models each have…

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Exactly what is Duty Cycle?

So what exactly is Duty Cycle? and what have Zombies got to do with it….  I want talk about the Duty Cycle that we see on our Spectrum Analyzers. Since it’s Halloween, and everyone loves a good horror story, I thought I’d try and explain what Duty Cycle is, with the use of Zombies! A lot…

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Tracking sequence numbers and flags in Wireshark

Tracking sequence numbers and flags in Wireshark One of the things I learned a while back was a really good tip when using Wireshark. I find people sometimes get tied up tracking the sequence numbers and the wireless frame flags in Wireshark. Having to open the frames and look for flags and following sequence numbers…

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Homer and Bart and WiFi

I find myself explaining layer 1 physical spectrum analysis quite a lot these days. Spectrum Analysis is everywhere today. There is Cisco Spectrum Expert, and CleanAir (now the chip is installed in every Enterprise Cisco AP). There is also Metageek Chanalyzer, and of course Cisco Meraki has it built in. Identifying the different signals can…

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An easy way to remember V and H

V and H – An easy way to remember Short blog entry this month but, I hope, quite an important one because I want to give you . This month I want to give you an easy to remember tip, concerning antenna coverage pattern charts. Directionality of antennas is quite important. When planning a design,…

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