Techniques of Hackers and IDS Computer Networks;

Analysis of harm of Hacker programmes and prevention;

Chinese word ,“黑客”, is from verb hack in English, which means cutting or chopping originally, and breaking up literally.

The tradition of the hackers is derived from the tradition of the elite, meanwhile, there is an inner relationship between the elite and the community.

Interpretation of the Symbols of Baudrillard Philosophy in "Matrix";

It cannot defend attacks as illegal invade,hacker attack,secret in.

This article introduces the fundamental mode of hacker attack,proposes the emergency response countermeasure,elaborates the invasion examination system with emphasis(IDS) and the technology of computer evidence collection,and puts forward its own idea to the constructing and system composing of network security management platform.

Security problem at present in the computer network exists which through the elaboration, has analyzed the hacker network attack general step, and has carried on the discussion and the analysis in this foundation in view of the network hacker attack concrete preventive measure.