Introduction - If you have any usage issues, please Google them yourself
Sniffer is usually a combination of hardware and software. Dedicated sniffer prices very expensive. On the other hand, although free sniffer does not need to spend any money, but very little support. General sniffer program to capture a different keyboard. Keyboard capture program to capture in the terminal input keys, and the sniffer will capture the true message of the network. Sniffer by its exposure to the network interface to achieve this objective- for example, Ethernet card set to miscellaneous collection mode. (In order to understand how miscellaneous collection mode is going on, first of all explain how the work of local area network).