Abstract:
In order to benefit from the ubiquity of the Internet, work has been done to create a virtual private network VPN that effectively resists network attacks and allows businesses to actively and securely use open networks. As a result, in the early 1990s, the concept of a virtual private network VPN was created. The term "virtual" was coined to indicate that a connection between two nodes is considered temporary. In fact, this connection is permanent, not fixed, and only exists when traffic passes over an open network.
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