SSH

SSH (Secure Shell) is a cryptographic network protocol for operating network services securely over an unsecured network. It provides a secure channel for remote login, command execution, file transfers, and tunneling other protocols. SSH is widely used by system administrators, developers, and IT professionals to manage servers and network devices.

Also known as: Secure Shell, ssh, OpenSSH, SSH protocol, SSH client

Why learn SSH?

Developers should learn SSH for securely accessing and managing remote servers, such as cloud instances, virtual machines, or production environments. It is essential for deploying applications, troubleshooting issues, and automating tasks via scripts. SSH is also crucial for secure file transfers with SCP/SFTP and port forwarding to access services behind firewalls.

Learning Resources

• docs: OpenSSH Documentation
• tutorial: SSH Essentials: Working with SSH Servers, Clients, and Keys
• video: How to Use SSH to Connect to a Remote Server
• book: SSH Mastery: OpenSSH, PuTTY, Tunnels and Keys