Network Information Monitoring And Controlling System Based On Application Protocol Analysis

With the development of internet and network technology, Internet has become more and more popular around the world. It makes the people's daily life easy to use various kinds of information. And by and by, people can't depart away from it any more. It's a serious problem that the employees in the corporation and students in the campus take too much time for work and study to do something else through Internet. It affects the normal producing activity of corporation and education of college. So the government, corporation and college etc raise the requirement of monitoring and controlling the network user's action.From the aspect of the application protocol analysis technology based on content characteristic, this paper implements a method based on the application protocol analysis of data-stream content as a limitation of the technology which makes use of simple protocol's character,From the aspect of the application protocol analysis technology based on behavior characteristic. This paper puts forward a P2P protocol analysis method based on behavior characteristic.In the end, this paper designs and implements a network information monitoring and controlling system based on the application protocol analysis with both technologies above. The system can check the data packet's validity, and analyze the protocol's content with sensitive keywords. It can monitor P2P flow rate with the behavior characteristics' analysis method, and break the illegal connection. The system's operating result is obvious, it's worth to employ and popularize.