#%PAM-1.0                                                                                                                                                 
auth        requisite       pam_faillock.so  preauth silent deny=4 fail_interval=480 unlock_time=180 even_deny_root root_unlock_time=180                  
auth        requisite       pam_faillock.so  authfail silent deny=4 fail_interval=480 unlock_time=180 even_deny_root root_unlock_time=180