Google Authenticator For SSH

For a long time its been stated that to secure your Linux machine you should change the default port number of services such as SSH and your favorite web server. While this is still a good step to take if you’re overly paranoid (or tired of port scanning alerts???), there’s got to be better ways to do this, right? Well, you would be correct! Here we will secure SSH with Google Authenticator to create a two-factor authentication method.