I’m trying to use DUO in my Redhat 6.8 - Gnome GUI. When I lock Gnome and log in back, it doesn’t use pam_duo.so at all (since there’s no log saying success or failed, neither connection to DUO was made). I found this in log /var/log/message:
gnome-screensaver-dialog: Couldn’t open /etc/duo/pam_duo.conf: Permission denied
Don’t know why this one has permission denied, while SSH/sudo work perfectly. pam_duo.conf has mod 400 since installation.
What can I do ?