science education, military and other fields, in to the people and the country brings convenient, efficient information sharing at the same time, but also to the security of network information has brought many
In the modern world, it is no doubt that Internet is playing an important role in our daily lives. It not only brings us information but makes our lives convrnient as well. However, the security of th
business enterprise exterior net(Extranet), the system handle an ability exaltation of in the meantime, the conjunction ability of system also in the continuous at the time of linking a
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