August 2003
Beginner to intermediate
288 pages
6h 51m
English
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Are 802.11 Networks Really Secure?
One of the problems with wireless security is that you don’t need expensive tools to break into a wireless network. All you need in your toolbox is a computer, a wireless card, some suitable software, and perhaps a good antenna for receiving wireless signals.
The following is a list of software that you can use to detect wireless networks, sniff wireless packets in transit, and much more. These tools have numerous legitimate uses, such as detecting unauthorized access points, intrusion detection, network traffic analysis, and debugging networked applications such as a web server.
- NetStumbler (http://www.netstumbler.com/)
NetStumbler is a free application that allows you to detect the presence of wireless networks. Using NetStumbler, you can obtain information about a particular access point, the SSID used, whether WEP is enabled, and so on. Coupled with a GPS, you can even pinpoint the location of an access point. NetStumbler is often used for Wardriving, site surveys, and detecting rogue access points.
- AiroPeek NX (http://www.airopeek.com/)
AiroPeek is a wireless LAN analyzer from WildPackets. It is an extremely powerful wireless LAN analyzer that most security professionals use (be forewarned, this package costs $3499!). AiroPeek is able to sniff raw wireless packets transmitted through the air, which is why protecting your wireless network with 802.1X, a VPN, SSH, or even WEP is important. Data packets that are not encrypted can easily be sniffed ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.