cups.pamd

   1 auth            required        pam_listfile.so item=user sense=deny file=/etc/security/blacklist onerr=succeed
   2 auth            required        pam_listfile.so item=user sense=deny file=/etc/security/blacklist.cups onerr=succeed
   3 auth            required        pam_unix.so nullok
   4 account         required        pam_unix.so