Enable Two-Factor Auth for Cockpit with Google Authenticator | Cockpit is the awesome web interface to manage a Linux VM or server. For best security, one can setup two-factor auth with google authenticator for Cockpit. Here is a how-to for Fedora Linux 25!
Use Google Authenticator For Two-Factor SSH Authentication in Linux | For a very secure and convenient way to add two-factor ssh auth to your Linux server, you can use Google Authenticator. I’ll show you how to set this up!