May 4 03:17:01 example CRON: PAM adding faulty module: /lib/security/pam_smbpass.soWhat's up?
May 4 04:17:01 example CRON: PAM unable to dlopen(/lib/security/pam_smbpass.so)
May 4 04:17:01 example CRON: PAM [error: /lib/security/pam_smbpass.so: cannot open shared object file: No such file or directory]
For some reason the Ubuntu gods have decided by default to include PAM configuration for the PAM SMB password module without actually installing the PAM SMB password module.
Hence the complaints in your logs.
Make it go away!
Sure, simply install the libpam-smbpass package or edit two config files on your system like this:
$ perl -p -i -e 's/(auth\s+optional\s+pam_smbpass.so migrate)/#$1/' /etc/pam.d/common-auth
You can find some more info on this boog here.