#%PAM-1.0
auth       required	/lib/security/pam_listfile.so item=user sense=deny file=/etc/ftpusers onerr=succeed
auth       required	/lib/security/pam_pwdb.so shadow nullok
auth       required	/lib/security/pam_shells.so
account    required	/lib/security/pam_pwdb.so
session    required	/lib/security/pam_pwdb.so