VPN Concepts & Configuration
Understand Virtual Private Networks (VPNs), their types, and how to configure a basic VPN client or server.
What is a VPN?
A Virtual Private Network (VPN) creates a secure, encrypted connection over a less secure network, like the internet. Think of it as a private tunnel through public space.
VPNs are essential for protecting your online privacy and security. They help keep your data safe from snoopers and allow you to access resources as if you were physically on a private network.
How VPNs Create a Secure Tunnel
When you connect to a VPN, your device establishes an encrypted connection to a VPN server. All your internet traffic then travels through this encrypted 'tunnel'.
- Encryption: Your data is scrambled, making it unreadable to anyone without the correct key.
- Tunneling: Your original data packets are wrapped inside new, encrypted packets, hiding your true IP address and location.
All lessons in this course
- Advanced Firewall Rules (nftables)
- VPN Concepts & Configuration
- Network Intrusion Detection (IDS)
- SSH Hardening and Key-Based Authentication