The PAM config files are the same on both systems, here is the contents auf common-auth
auth [success=2 default=ignore] pam_sss.so forward_pass
auth [success=1 default=ignore] pam_unix.so use_first_pass
# here's the fallback if no module succeeds
auth requisite pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
auth required pam_permit.so
I've prepared two tarballs with full logs of both a successful attempt to login on
sssd 1.15.1/Ubuntu 16.04 and an unsuccessful attempt on 1.16.1/18.04. I would like to send
you these tarballs in private. Can you provide me with an e-mal adress to send to?