I try to use several tutorials on how to make GA work in Linux Mint 19.1 but when I get to the bottom it says to enter this line and insert it then save an quit while in the pam vim file. Each time I try ESC+:+w+q or :wq and go back an look at the file it is NOT saved…even tried ESC+ZZ to no effect.
The tutorial is located at
the command …
sudo nano /etc/pam.d/common-auth
takes me to the file that I have to insert…
auth required pam_google_authenticator.so nullok
at the ‘end of the file’ which is very vague on where that exactly is…other posts say to put it just above auth [success=1 default=ignore] pam_unix.so nullok_secure but this post says to go to the ‘END OF THE FILE’ which to me is vague
any help on this I would greatly appreciate as I am doing it for someone else.