Based on response after the attack incidents, a method of network attack process analysis by dynamic vulnerability linking is designed.

The security of system was influenced by ASP s leak;

Show Leak of Access & ASP Web Build and Keep Away From Attack;

Safe loophole in ASP and its protection;

Research and Implementation of Active Scanner Against Loophole Embedded in Web Application Program;

In this paper,the computer network security problems are analyzed from several aspects,including the operating system loophole,the loopholes in the TCP/IP protocol that can be used by hackers,the computer viruses,and the security problems related with users.

ActiveX vulnerability exploiting technique based on Fuzzing;

Design and Implementation of a Network-based Vulnerability Scanner;

Research of automatic worm signature generation based on vulnerability;

Analysis of common hole in windows NT/2000operation system;

In this paper,through analyzing negative selection algorithm and the reason of appearing "holes",an multi-level negative selection algorithm of generating different scales mature detectors is put forward.

The computer network system has a lot of holes and vulnerabilities,from the point of initiative recovery,we analyze the necessity of using the attack tools to test the security of the network system,research the attack database and attack toolkit,propose multi-attribute attack tool classification,and then design the attack database oriented to security test.

This paper analyzes security bugs with the search engine and puts forward corresponding technical countermeasures.

This article is mainly to introduce t he structure of security informatio n system and the common network platform bug,besides,it also describes some methods to protect the secu rity of the system when facing with th e network attack.

The thesis discusses security bugs of Internet OS and Internet application, and gives security measures to these bugs.