PAM_LOG_DEBUG |
| Debugging messages. These messages are normally not logged unless the global integer variable _openpam_debug is set to a non-zero value, in which case they are logged with a syslog(3) priority of LOG_DEBUG. |
PAM_LOG_VERBOSE |
| Information about the progress of the authentication process, or other non-essential messages. These messages are logged with a syslog(3) priority of LOG_INFO. |
PAM_LOG_NOTICE |
| Messages relating to non-fatal errors. These messages are logged with a syslog(3) priority of LOG_NOTICE. |
PAM_LOG_ERROR |
| Messages relating to serious errors. These messages are logged with a syslog(3) priority of LOG_ERR. |
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