Research And Realization Of Terminal Admission Control System

Along with development of network technology, the safe problem of network is increasingly serious. According to statistics, the attack and the breakage that computer network suffer annually 80% is an internal personnel result in. Therefore, the safe problem of terminal has already become the most important problem to insure network safety. According to the research and analysis of the safe present condition,this paper put forward a kind of terminal admission control system. This system concentrates on solves threat that come from the network inner part. This system carry out a safe strategy check to the user terminal by client, safe strategy server,access device and repair device. So it can strengthen the ability of defense, and raise the safety of a network.This system is made of four parts, include client, proxy server, access device and safe strategy server. Client is software that installs on the user terminal. When the user tries to access to the network, it is responsible for starting a safe attestation. The proxy server is responsible for correspondence between client and safe strategy server. This can prevent from the malice attack to the server effectively. The safe strategy server is the whole core of system; it carries out the safety validation, send message to the proxy server etc. The access device controls the access ability of users.