- A computer running Ubuntu 16.04 LTS or above
- A phone running Android or iOS
- A configured SSH connection
- You should understand the danger of stolen passwords.
- You don’t need to know what two-factor authentication is and how it works. 🙂
Installing and configuring required packages
Start a terminal session and type:
sudo apt install libpam-google-authenticator
Configuring SSH
To make SSH use the Google Authenticator PAM module, add the following line to the /etc/pam.d/sshd file:
