# ssh-keygen

> Generate ssh keys user for authentication, password-less logins, and other things

- generate a key interactively

`ssh-keygen`

- generate a DSA 2048 bit (default) key

`ssh-keygen -t dsa`

- generate an RSA 4096 bit key with your email as a comment

`ssh-keygen -t rsa -b 4096 -C "{{email}}"`

- Retrieve the key fingerprint from a host (useful for confirming the authenticity of the host when first connecting to it via SSH)

`ssh-keygen -l -F {{remote_host}}`