auth required pam_listfile.so item=user sense=deny file=/etc/security/blacklist onerr=succeed
auth required pam_listfile.so item=user sense=deny file=/etc/security/blacklist.xdm onerr=succeed
auth required pam_unix.so
auth required pam_listfile.so item=user sense=deny file=/etc/security/blacklist onerr=succeed
auth required pam_listfile.so item=user sense=deny file=/etc/security/blacklist.xdm onerr=succeed
auth required pam_unix.so