[CentOS] Google authenticator on C8

Hi folks

I have installed Google authenticator on a few C8 boxes This is working fine on all of them except one...

- google-authenticator is installed and the box is added to my Android app - /etc/pam.d/sshd contains auth sufficient pam_google_authenticator.so - /etc/ssh/sshd_config contains ChallengeResponseAuthentication yes - sshd restarted

When logging in, I'm prompted with the password (i.e. no request OTP request)

I have already uninstalled/reinstalled/rebooted and compared the config files across boxes... but I can't see what I have done wrong

Any clue about what I could have missed?

Thanks!