Virtual Private Networks (VPNs) create secure connections over public networks from "summary" of Data Communications and Networking by Behrouz A. Forouzan
Virtual Private Networks (VPNs) utilize encryption and tunneling techniques to create secure connections over public networks. Encryption involves encoding data in such a way that only authorized parties can access and decipher it. By encrypting data before it is transmitted over a public network, VPNs ensure that sensitive information remains confidential and secure. Tunneling, on the other hand, involves encapsulating data within another data packet as it travels from the sender to the receiver. This creates a secure "tunnel" through which data can pass safely, protecting it from potential eavesdroppers or hackers. Additionally, VPNs use authentication mechanisms to verify the identities of users before allowing...
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