ssh-helper

name	ssh-helper
description	Secure Shell (SSH) configuration and key management.
metadata	{"navig":{"emoji":"🔑","requires":{"bins":["ssh","ssh-keygen"],"config":["~/.ssh/config"]}}}

SSH Helper Skill

Manage your SSH keys and configurations to ensure secure and seamless connectivity to all your hosts.

Core Operations

Key Management

# Generate a new secure key (Ed25519 is comprehensive best practice)
navig run "ssh-keygen -t ed25519 -C 'agent@navig' -f ~/.ssh/id_navig_ed25519 -N ''"

# View public key for distribution
navig file show ~/.ssh/id_navig_ed25519.pub

Config Management

Optimize your SSH connection sharing and timeouts.

Recommended Config (~/.ssh/config):

Host *
    ControlMaster auto
    ControlPath ~/.ssh/sockets/%r@%h-%p
    ControlPersist 600
    ServerAliveInterval 60
    ServerAliveCountMax 3

Apply Config:

# Upload standard config
navig file add ./templates/ssh/config ~/.ssh/config --mode 600

Connection Testing

# Debug a connection
navig run "ssh -v user@host 'echo Connection Successful'"

Best Practices

1. Use Ed25519: Preferred over RSA for security and performance.
2. Multiplexing: Use ControlMaster to speed up sequential commands by reusing the TCP connection.
3. Permissions: Always ensure ~/.ssh is 700 and keys are 600.