ssh

Use SSH for secure remote access, file transfers, and tunneling. Connect to server: Connect on specific port: Connect with specific identity: Config file location: Example config entry: Then connect with just: Execute single command: Execute multiple commands: Run with pseudo-terminal (for interactive): Copy file to remote: Copy file from remote: Copy directory recursively: Sync directory to remote: Sync from remote: With progress and compression: Dry run first: Local forward (access remote service locally): Local forward to another host: Remote forward (expose local service to remote): Dynamic SOCKS proxy: Connect through jump host: Multiple jumps: In config file: Generate new key (Ed25519, recommended): Generate RSA key (legacy compatibility): Copy public key to server: Copy specific key: Start agent: Add key to agent: Add with macOS keychain: List loaded keys: In ~/.ssh/config: Create socket directory: Remove old host key: Scan and add host key: Verbose output: Very verbose: Maximum verbosity: - Use Ed25519 keys (faster, more secure than RSA) - Set PasswordAuthentication no on servers - Use fail2ban on servers to block brute force - Keep keys encrypted with passphrases - Use ssh-agent to avoid typing passphrase repeatedly - Restrict key usage with command= in authorized_keys