In this comprehensive video tutorial, we delve into the vital aspect of enhancing the security of your SSH connections on Ubuntu using Time-Based One-Time Password (TOTP) authentication with Google Authenticator. SSH (Secure Shell) is a fundamental tool for remote system administration, but ensuring its security is paramount in today's digital landscape. Throughout the video, we walk you through a step-by-step process, starting with the installation of Google Authenticator on your Ubuntu system. We explain how to configure SSH to use TOTP authentication, adding an extra layer of protection to your SSH access. Commands: sudo apt install -y libpam-google-authenticator google-authenticator sudo nano /etc/ssh/sshd_config Set KbdInteractiveAuthentication to yes sudo nano /etc/pam.d/sshd Look for @include common-auth add two-factor authentication via Google Authenticator auth required pam_google_authenticator.so sudo systemctl restart ssh Grate wright up on doing this NOT FROM ME https://www.linuxbabe.com/ubuntu/two-factor-authentication-ssh-key-ubuntu