Sniffer, is a kind of passive protected reliably against detective based on principle of network analysis method. Use this technique means, can monitor the network state, data flow and Internet transmission of information.
introduction
When the information in the form of expressly on the network transmission, they can use network monitoring ways to attack. Will network interface set in monitoring mode, can online transmission constant flow of information intercepted. Sniffer technology are often hackers to intercept user's password, it is said that a backbone network router nets section once hackers scored, and Sniffer to many user password. But actually Sniffer technology has been widely used in network fault diagnosis and protocol analysis and application performance analysis and network security, etc.
