The area that people really want to focus on with this chapter is the part of network security that's unique to wireless networks: the airlink security. CT Limo
Traditionally, for those who have a computer network which is wired, the information travels from point A to point out B through those wires. Which means you have a phychical control over your information. You install them and also you know where they're going. You can lock the door and the windows and no-one can get access to them. Though the wireless LAN it is another story. The information is transmitted with the help of some radio signals. So, it's all gone about the physical control and security. The details are actually floating in the air.
There is no possible way to halt the radio waves emitted from your wireless LAN to step out of the house. But instead you'll be able to stop those persons who try to tune your radio waves within the purpose of hijacking your computer (scrutinize your e-mail, Web surfing habits, etc).
There are a few methods that enable you to secure your wireless LAN also to provide some airlink security on your own network
Introducing Wired Equivalent Privacy (WEP).
WEP is often a defender of WI-FI network and it's also based on a encryption system that scrambles (having an encryption key) every one of the data package that is sent over the airwaves network. So, despite the fact that your data is beamed right the way through the side of the house into that snooper's PC, it'll arrive in an unreadable form.
Another aim of the WEP (beside the the one which encrypts your data
that is transmitted over the airlink) is that it can be used to authenticate a persons connecting to the access point. Shortly, you do not need the WEP key only to decrypt your data, but you likewise require it to get your computer connected to the AP in the first place. No matter if the WEP is enabled or not, if you don't have the key you are unable to connect to the Internet.
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