LogsChapter 7 Administrative Basics 265Log Levels (Message Categories)For identification and filtering purposes, events logged by all CMS-supportedservices are classified into various categories. These are listed in Table 7-2. Eachcategory represents messages that are of the same or a similar nature or that belongto a specific functional area.In the CMS configuration, each message category corresponds to a specific loglevel. Log levels are represented by numbers (digits) 1 to 6, each digit indicatingthe level of logging to be performed by the server—that is, how detailed thelogging should be.• A higher priority level (a larger digit) means less detail because only events ofhigh priority are logged.• A lower priority level (a smaller digit) means greater detail because more kindsof events are recorded in the log file.Table 7-2 Classification of Log Entries or MessagesLog level Message category Description0 Debugging These messages contain debugging information.Generally, you would not want to set a log to thedebugging level since it would yield far too muchinformation for normal use.1 Informational(default selection foraudit log)These messages provide general information aboutthe state of CMS . For example, status messages suchas “Certificate Management System initializationcomplete” and “Request for operation succeeded”fall into this category.2 Warning These messages are warnings only and do notindicate any failure in the normal operation of theserver.3 Failure(default selection forsystem and error logs)These messages indicate errors and failures thatprevent the server from operating normally.Examples of messages that fall into this categoryinclude failures to perform a certificate serviceoperation (“User authentication failed” or“Certificate revoked”) and unexpected situationsthat can cause irrevocable errors (“The server cannotsend back the request it processed for a clientthrough the same channel the request came from theclient”).
