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Stumbling and Sniffing Wireless Networks in Linux, Part 3

Nov 16, 2009, 19:34 (0 Talkback[s])
(Other stories by Eric Geier)

"Visually sniffing with Wireshark

"If you don't particularly enjoy the command-line or are a Linux newbie, you might want to stick with using a GUI-based sniffer. Additionally, using a visual application can provide a faster and more in-depth inspection of your network traffic. We're going to look at Wireshark, a popular cross-platform network analyzer, formally named Ethereal.

"Once you open Wireshark, click Capture > Interfaces and click the Start button for the desired interface to start capturing. Packets should start appearing, such as seen in Figure 1. To inspect a packet, select it from the list. Then you can browse through the packet details and see the actual contents in HEX and ASCII.

"To prevent Wireshark from resolving hostnames or port names, click Capture > Interfaces and hit the Options button for the desired interface. Then in the bottom-right corner of the Options window, change the Name Resolution settings as you wish."

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