Method for realizing network security and star network

Abstract

The invention discloses a method for realizing network security and a star network. In the scheme of the invention, a controller is added to the start network; the controller and a security server are connected in an authentication manner; the security server confirms the communication security between the security server and the controller by periodically sending a detection message; every time after receiving an access request from a server, the security server sends the security level of the file requested by the terminal and the IP (Internet protocol) address of the terminal to the controller; and the controller determines the confidential level of the terminal according to the security level of the file, stores the IP address and confidential level of the terminal in a security level mapping table, generates a communication rule of the terminal according to the security level and sends the communication rule to a switch so as to control communication between terminals. Through the technical scheme of the invention, the security of the star network is greatly improved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for realizing network security and a star network. Background technique [0002] Star network is the most common way of LAN connection in practice. figure 1 It is a schematic diagram of an existing star network. Such as figure 1 As shown in , the communication between terminals must pass through the switch, and the access of each terminal to the security server also needs to pass through the switch. [0003] The openness of the LAN makes it possible to figure 1 Important information resources in each terminal in the shown star network are in a high-risk state, and possible security problems include illegal intrusion of viruses and Trojan horses spread through the network, and information theft based on the network. [0004] In response to the above problems, traditional information security technologies, such as firewalls, intrusion detection systems, a...

AI Technical Summary

Problems solved by technology

Because most of these information security technologies are developed for hacking, they cannot monitor and block the leakage of internal confidential data in real time.

[0005] It can be seen that the security of the existing star network needs to be improved

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