The
Secure Shell (SSH) protocol provides a means one can use for
secure, encrypted connections between systems for logins or file transfers.
One can use a username and password to login from an SSH client to an SSH
server or one can use a
public and private key combination where a public
key for a user's account is stored on a remote SSH server while a corresponding
private key is stored on the system from which the user will initiate the
SSH or SFTP connection. On
Linux systems,
private keys are normally stored in the .ssh directory
beneath the home directory for your account. If you haven't created
any keys yet, the directory may only contain a known_hosts
file that contains public keys for servers you've previously logged into
via SSH.
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