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Hello,

am trying to monitor network traffic on all opened ports on my system and filter or block some request based on the content of the data, but don't know where to start

can you please recommend any guide?
Posted

Take a look at A Network Sniffer in C#[^] for start.
 
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A decent tool to use is WireShark http://www.wireshark.org/[^]

We used Cace and Endace hardware at my previous job
http://www.cacetech.com/[^]

http://www.endace.com/[^]
 
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Comments
Cool Smith 10-Jun-11 3:53am    
are these open source
wizardzz 10-Jun-11 9:56am    
Wireshark is. My coworker had written many plugins to use with it.

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