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I used HP Learning Center when I was studying at graduate level in IT. It is a very good and useful web site providing what you need to know in IT business.
Suitable for a student and everyone who wants to understand IT from the basic.
There’s nothing more soothing than a good cup of java (lower-case) and a free WiFi connection at your local coffee shop. But watch that guy at the booth next door — he may be hacking into your laptop over that very same WiFi link.
Your users are even more at risk if their wireless card uses the Wireless Access Protocol (WAP), which is notoriously simple to hack. A hacker can use a sniffer and grab your corporate user name and password, for instance, or infect you with a worm, says Daniel Peck, a security researcher with SecureWorks. [Link]
Top five most hacked WAP’s
Have you every been annoyed using WiFi service offering range of networks with all high signal strength but you still got poor connectivity? The secret is interference from non-WiFi devices can degrade WiFi performance. Some networks are interfered but some not.
This cool gadget Wi-Spy can show you as ordinary Spectrum Analyzer.
