View source for Multi Factor Password Authentication


install with:
 sudo apt install libpam-google-authenticator

configure with: (scan the barcode into your phone app while you are doing this)
 google-authenticator

edit file:
 sudo nano /etc/pam.d/sshd

add the following line to the bottom:
 auth required pam_google_authenticator.so

edit the ssh server configuration

 sudo nano /etc/ssh/sshd_config

change the line and make it look like this
 ChallengeResponseAuthentication yes

restart ssh