Automatic network switching method and system

Abstract

The invention relates to the technical field of computer network security, and provides an automatic network switching method and an automatic network switching system. Data exchange between two networks is realized based on the physical isolation technology. The automatic network switching system comprises an outer net network, an intranet network, an exchange server and a network switching device, wherein the outer net network and the intranet network are respectively responsible for organizing outer net data and intranet data, and are used for the exchange server to extract and release thedata; the exchange server is used for controlling the switching of the network switching device and realizing the data exchange between the outer net network and the intranet network; and the networkswitching device is used for switching a network connected with the exchange server. The automatic network switching method and the automatic network switching system can realize the data exchange among different networks conveniently under the requirement of the physical isolation without generating interference on the prior network, and have low cost and simple and convenient use.

Description

technical field [0001] The invention relates to the technical field of computer network security, in particular to an automatic network switching method and system thereof. Background technique [0002] Physical isolation is used to solve network security problems. Especially when those confidential networks that require absolute security, private networks and special networks are connected to the Internet, in order to prevent attacks from the Internet and ensure the confidentiality, security, integrity, anti-repudiation and high security of these high-security networks Availability, almost all require the use of physical isolation technology. [0003] The academic community generally believes that the first to propose physical isolation technology should be the military of Israel and the United States. But so far, there is no complete definition and standard of physical isolation technology. It can also be seen from the terms used in different periods that physical isola...

AI Technical Summary

Problems solved by technology

[0005] 1. Block the direct connection of the network, that is, no two networks are connected to the isolation device at the same time;

[0006] 2. Block the Internet logical connection of the network, that is, the TCP/IP protocol must be stripped, and the original data will be transmitted through the isolation device through the P2P non-TCP/IP connection protocol;

[0007] 3. The transmission mechanism of the isolation device has the characteristics of non-programmability, so it does not have the characteristics of infection;

However, in the case of low security requirements, the c

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