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Virtual Private Networks (VPNs) Explained

Cyber Security Mastery: From Zero to Hero

Securing Remote Communication

A VPN extends a private network across a public network (like the internet), enabling users to send and receive data as if their computing devices were directly connected to the private network.

Core Functions of a VPN

  1. Tunneling: Creates a secure, private tunnel across the public internet.
  2. Encryption: All data traveling through the tunnel is encrypted, ensuring Confidentiality (usually using IPSec or SSL/TLS).
  3. Authentication: Ensures that only authorized users can access the private network.

VPN Use Cases

  • Remote Access: Allowing employees to securely connect to the corporate network from home.
  • Privacy: Hiding your IP address and encrypting your traffic from your ISP (Internet Service Provider) or public Wi-Fi eavesdroppers.
  • Site-to-Site: Connecting two geographically distant office branches into a single, cohesive network.