Week 5: SSH Deep Dive & Secure Shell
🎯 Goal Master SSH for secure remote access, authentication hardening, port forwarding, and tunneling. Learn to configure SSH servers securely, use key-based authentication, and leverage SSH tunnels for accessing internal networks. 1. SSH Fundamentals & Key-Based Authentication Why SSH Keys Over Passwords? Passwords are weak: Vulnerable to brute force attacks Can be keylogged or phished Easily forgotten or reused SSH keys are strong: 4096-bit RSA or ed25519 provide cryptographic security Private key never leaves your machine Cannot be brute forced in reasonable time Generate an SSH Key Pair Recommended: Ed25519 (modern, fast, secure) ...