SSH Deep Dive for Secure Server Access
A Deep Dive into How SSH Works SSH (Secure Shell) is a cryptographic network protocol used for secure remote server access and management . It allows users to connect to remote machines over an unsecured network securely. In simple terms: SSH lets you securely control a remote server from your local system. It is widely used in: DevOps Cloud computing Linux server management CI/CD pipelines Git deployments SSH provides encrypted remote access. Uses public-key cryptography . Default port is 22 . More secure than Telnet. Essential for DevOps and cloud engineers . 1. How SSH Works SSH works using: Client-Server Model Encryption Authentication 🔹 Step-by-Step SSH Process: Client requests connection. Server sends public key. Client verifies authenticity. Secure encrypted session begins. All communication is encrypted. 2. SSH Authentication Methods 🔹 1. Password Authentication ssh username@server_ip Simple but less secure. 2. Key-Based Authentication (Recommended) More secure...