Linux-based intercept and analysis of the stream of network

Aim To intercept and seize the stream of network.Methods Through the passive stream snooping which can intercept the data and analyze the protocols to obtain the stream on every layer of the protocol.Results The program can intercept or read the data on every layer of protocols inside the OSI protocol mode.Conclusion This method can be easily implemented based on Linux.Much information can be gained through the intercept and analysis of the stream of network,including that of network security,performance of network′s service,as well as the possibility of potential attack and vulnerability.