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I'm trying to understand how to use Wireshark right now, but the official manual isn't a fun read at all when starting out. Its too detailed, and the details are going right over my head because of the information overloading :)
What are some more didactic tutorials out there?
Thanks!
Edit: WireShark is a network packet sniffer, and it's very useful for debugging network applications. I'm working on networked applications, and plan to use it as a Debugging tool to make my job as a programmer happier. I guess this is about programming related as asking for tutorials about gbd, valgrind or mdb, dtrace, prstat, cat, visual studio or eclipse.
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Wireshark is legal to use, but it can become illegal if cybersecurity professionals attempt to monitor a network that they do not have explicit authorization to monitor.
Cybersecurity professionals often use Wireshark to trace connections, view the contents of suspect network transactions and identify bursts of network traffic. It's a major part of any IT pro's toolkit – and hopefully, the IT pro has the knowledge to use it.
If you're on the same Wi-Fi network, it's as simple as opening Wireshark and configuring a few settings. We'll use the tool to decrypt WPA2 network traffic so we can spy on which applications a phone is running in real time.
I wouldn't start with a tutorial on Wireshark itself necessarily. Reading the Wireshark manual first is kind of like reading the help guide to Visual Studio; if you already knew the basics of how programming is done the IDE would naturally make a lot of sense.
If you google and find some tutorials on Ethernet in general (the structure of packets, how TCP and UDP data gets from point A to point B, etc) then the information Wireshark presents will make sense naturally.
For extra bonus points check out Cisco's OSI model - if you can understand each layer of that then you'll have a deep understanding of what Wireshark is telling you.
If you just want a quickstart: http://www.youtube.com/watch?v=0bazkLeY6b4
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