Security system for computer network

Abstract

The invention discloses a security system for a computer network. The security system comprises a host, a virtual switch, a core physical switch and a bypass firewall, wherein encryption modules are respectively arranged in the host and the virtual switch; an identity verification module is also arranged in the virtual switch; a key of each encryption module is updated once at each access; the security system further comprises a virus characteristic matching module, a port audit module, a traffic statistics module, a network anomaly assessment module, a virus isolation module, an emergency channel module, a restoration module and a data isolation uploading module, According to the security system, the network traffic is monitored and audited, so that the network is maintained in good condition; through analysis and memory of an unknown invasion behavior, the network immunocompetence is improved; the key is updated once at each access, so that the security of the network is further improved, and meanwhile, the system has data protection capability, so that a condition that a user is away from a computer to cause information loss is also avoided.

Description

technical field [0001] The invention relates to the field of computer networks, in particular to a security system for computer networks. Background technique [0002] With the rapid development of computer technology and network, computer has become an indispensable tool in people's work, study and life. Similarly, the development of computer networks has also brought hidden dangers to the security of users' computer information. Network information theft, information attacks, virus transmission, etc. exist and occur all the time. [0003] Network security is a key issue that has been studied in the field of computer network and its application. However, the traditional network security theory and technology have the following three insurmountable defects. Firstly, the method of centralized control seems powerless for the current distributed network environment; secondly, the network has isomorphism, which cannot prevent suspicious intruders and viruses from spreading rapi...

AI Technical Summary

Problems solved by technology

Firstly, the method of centralized control seems powerless for the current distributed network environment; secondly, the network has isomorphism, which cannot prev

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