Virtual Private Network (VPN) is communication over the Internet. used as a channel for personal communication with the network or used to communicate between corporate networks via public networks or the Internet. By creating a private channel or tunnel, known as a tunnel, the data transmitted through the tunnel is encrypted. and packet traffic at the network layer is encapsulated. (Encapsulated) It can also be used to prove the rights of users of the network of the organization as well.Data communication and computer networks in business work : Assistant Professor Dr. Jaruay Sawithi
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