ssh-keygen

command network

Generate SSH key pair

Required Packages

sudo apt install -y openssh-client

Options

Key type (-t)

Key bits (-b)

Only for RSA/ECDSA (Ed25519 has fixed size)

Output file (-f)

Key file path (default: ~/.ssh/id_<type>)

Comment (-C)

Usually email address

No passphrase (-N "") No passphrase (-N "")

For automation only — not recommended for interactive use

Action *

ssh-keygen -t ed25519