Real-time Online Network Isolation System Design And Realization

Of E-government in China to promote the application process, an increasing number of e-government network within the network users a choice of the computer of physical separation as a first choice of security solution. With the e-government and national security requirements evolve, users found that the physical isolation products can no longer meet the requirements, and physical isolation make the switch quickly to preserve the scene needs.This is the third generation of physical isolation technology-real-time dual-network isolation systems. Real-time online dual-network isolation system belongs to the PC of physical isolation.Both fast switching and physical characteristics of isolation to ensure that the computer's data no interaction between the two networks.This system uses the S3 (suspend to ram,a power state of ACPI), through the BIOS, hardware control cards, motherboards, and applications to cooperate to build a physical isolation of the dual-network environment. Through modifying the S3 process to achieve fast switching purposes.The typical switching process is as follows:When the computer into one of the network, hardware isolation card to ensure the hard drives, memory, and the networks is not connected with each other; When switching, the operating system hang and release the resources, and by the hardware switch control card save the switching information, wake up the other operation system that sleeped beforem. The fastest conversion speed up to 5 seconds, well positioned to meet the current needs of the market, opening up new areas of the terminal physical isolation.