log-level debug   | Contains messages that help you debug a failure.  | 
log-level info  | Contains informational messages that provide general information about system operations.  | 
log-level notice  | Contains normal, but significant conditions, such as a configuration change. This is the default setting.  | 
log-level warning  | Contains conditions that might affect the functionality of the appliance, such as authentication failures.  | 
log-level error  | Contains conditions that probably affect the functionality of the appliance.  | 
log-level critical  | Conditions that affect the functionality of the appliance.  |