Wireshark v1.4.4 Publishing network packet analysis software

Wireshark (formerly known as Ethereal) is a network packet analysis software. The function of network packet analysis software is to retrieve network packet, and display the most detailed network packet data as far as possible. The function of the network packet analysis software can be imagined as "electrician technicians use electric meters to measure current, voltage, resistance"-just porting the scene to the network and replacing the wire with the network cable.
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In the past, the network packet analysis software is very expensive, or specifically belongs to the use of the software business. Ethereal's appearance changed all this. Under the scope of the GPL general license, users can obtain the software and its source code at no cost, and have the right to modify the source code and custom. Ethereal is one of the most extensive network packet analysis software in the world.

Network administrators use Wireshark to detect network problems, network security engineers use Wireshark to check for information security-related issues, developers use Wireshark to debug new communication protocols, and ordinary users use Wireshark to learn about network protocols, of course, 　　Some people will be "malicious" to use it to find some sensitive information ... Wireshark is not an intrusion detection software (intrusion detectionsoftware,ids). For abnormal traffic behavior on the network, Wireshark does not produce alerts or any prompts. However, a careful analysis of the packets extracted by Wireshark can help users to have a clearer understanding of the behavior of the network. Wireshark will not change the content of the network packet, it will only reflect the current flow of packet information. Wireshark itself will not send packets to the network.

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