Tuesday Sep 26

Posts Tagged ‘Wireless’

InfoSec World- Best, Worst and Common Practices for Securing Enterprise WiFi
Last Updated on Monday, 23 March 2015 12:00
Written by jj
Monday, March 23rd, 2015

The afternoon of Monday, March 23rd at InfoSec World in Orlando, I’ll be giving a talk in the mobile track titled “Best, Worst and Common Practices for Securing Enterprise WiFi“. Since the event site doesn’t post the full abstract, I figured I’d share it here for you, and I’ll tweet the crap out of it so you can find it. (more…)

Tags: , , ,   |  Posted under Events  |  Comments  1 Comment
Get the Real Scoop on Dynamic Frequency Selection (DFS) and 802.11ac
Last Updated on Tuesday, 5 November 2013 11:13
Written by jj
Monday, November 11th, 2013

The wireless world has been abuzz with talk of Dynamic Frequency Selection (DFS) and the complications with adhering to the DFS requirements while deploying a 5GHz-only high-speed 802.11ac network.

What is DFS? Why is DFS an issue? How does wireless impact radar, and vice versa? What are the added challenges when deploying 802.11ac WiFi? In my three-part series over at Network Computing, we take a dive in to these questions, and more. (more…)

The Best Damn 802.11ac Channel Allocation Graphics, Ever
Last Updated on Tuesday, 5 November 2013 11:23
Written by jj
Tuesday, November 5th, 2013

As I was writing a series of wireless articles recently, I searched for graphics. I wanted a graphic that could show the 802.11 5GHz channels, clearly denote DFS frequencies while correctly noting the Dopplar-avoidance rules, visually show channel width options and also included the newly-added 802.11ac channel. My requirements for this graphic were apparently too demanding. (more…)

Tags: , , , ,   |  Posted under Wireless  |  Comments  6 Comments
Why more APs aren’t always better
Last Updated on Thursday, 9 February 2012 12:42
Written by jj
Thursday, January 19th, 2012

Lately, I’ve been forced to dispel a volume of wireless myths, both in way of technology and vendors. I’m not sure if it’s a full moon, or some other astrological occurrence, but it’s gotten a little crazy recently. So, I thought I’d take a few blog posts to address some wireless myths, in brief, to keep in the back of your head as you explore wireless solutions and upgrades in your environment.

Here’s a thought on why more APs aren’t always better. (more…)

Tags: , ,   |  Posted under Wireless  |  Comments  1 Comment
Understanding collisions and duplex in wireless
Last Updated on Sunday, 12 February 2012 07:14
Written by jj
Wednesday, January 18th, 2012

For whatever reason, we all seem to live with the delusion that wireless networking works like a wired connection, but over the air. And, in that world, we also have leprechauns. The truth is the layer 1 (physical) properties of wireless and RF are completely different; (more…)

Tags: , ,   |  Posted under Wireless  |  Comments  No Comments

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