Install Google Authenticator
Before you can configure SSH server to enable two-factor or multi-factor access, you must first install Google Authentication.Since we’ve already showed you how to install Google Authenticator Ubuntu and set up on your mobile device, please reference the post below so we don’t write it again.
Configure Two-factor SSH
Now that you have installed Google Authenticator on Ubuntu and your mobile device, continue below configure SSH server to use it.To setup SSH run the commands below to open its default configuration file on Ubuntu.
#ubuntu #google authenticator #ssh