Dual-machine computer system for information security protection

Abstract

The invention discloses a dual-machine computer system for information security protection. A subsystem A, a subsystem B, a share switching controller, an input gateway and an output gateway are arranged in one computer, wherein one of the subsystem A and the subsystem B is communicated with an external Internet and the other one is communicated with an internal local area network; the subsystem A and the subsystem B are connected to peripheral equipment of a computer by virtue of the switching of the share switching controller; the input gateway and the output gateway are connected with the subsystem A and the subsystem B in parallel; the input gateway is used as a transmission port for transmitting information of the external Internet to the internal local area network; and the output gateway is used as a transmission port for transmitting information of the internal local area network to the external internet. The dual-machine computer system has the advantages that information transmission between the external Internet and the internal local area network can be performed on the same computer; virus invasion from the external Internet and information leakage of the internal local area network can be prevented; the security and the use convenience of the computer are realized.

Description

technical field [0001] The invention relates to a protection system for computer information security. Background technique [0002] In modern society, computer networks and the Internet have become an indispensable part of people's work and life, and the whole world has become networked. It can be said that without the Internet, there will be no normal life and work. However, the life of a network lies in its security and reliability. While computer networks and the Internet bring convenience and rich information resources to people, they also bring convenience to network intruders. Various computer viruses and Trojan horses are easy to spread quickly through the network. To ensure information security, the computer network must have high security and reliability to resist the invasion of many viruses around the world. [0003] In order to prevent the invasion of computer network viruses, governments and enterprises all over the world have spent a lot of manpower and fina...

AI Technical Summary

Problems solved by technology

However, this security measure also has a big disadvantage and defect, that is, while it isolates external viruses and internal information leakage, it also completely restricts and deprives all users on the local area network of accessing the outside world of the Internet to obtain information. The use of two computers not only occupies a lot of space, but also is very inconvenient in actual use, affecting work efficiency

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