Research And Implementation Of Network Application Content Audit Key Techniques Concerning HTTP

One of the most important features of the Twenty-First Century is informatization and networking.New technologies and capabilities keep emerging in Information Technology field.Free and rapid flow of information,interconnection of everything provides great support and protection for the high-speed,efficient and healthy development of national economy.Every aspect of people's life is also benefited.Whereas,with the rapid development of computer information networks,network technology-related risks and issues are becoming increasingly prominent,even more acute.On the one hand,the application of computer network,especially private network that used in research field or for office purpose being intentionally or unintentionally abused from time to time,Such as using illegal software,carry on activities without permitted,etc.On the other hand,confidential information theft,even malicious damage still exists within computer information network.Currently,on the network system level,organizations and institutions use computer network in such a depth,that network must supply efficient and reliable information service,so real-time detection and analysis of network status logs regularly to provide the basis for network maintenance is particularly important.As a matter of fact,the introducing of network audit system,constantly improving network audit applications become extremely necessary.In this thesis,a large amount of network application contents audit key technology innovation,optimization having been put forward,with a lot of research under new technical conditions basis.This thesis presents a of computer network terminal number and state detection technology,to further the audit of network application contents technique provides the basis for making the results of the network audit may correspond to the specific network terminal,thereby improving the network the accuracy and availability of audit results.And then,this thesis proposes a network audit information discovery and extraction technology concerning HTTP,which consists of two sections.The first section is an HTML document or Web page audit information element research,and implement information element extraction from two designate levels.The second section is research of HTTP packet information extraction which can be used for network auditing.Finally,distributed data processing technology is introduced to cope with the current complex,heterogeneous network situation.The integrated use of classical data mining algorithms analysis and updated data processing technology improves the efficiency and accuracy of Web content audit greatly,provided new prospect and direction for network content audit.