Server log levels

The level of logging defines how detailed the log is. A lower level, such as Unusual Activity, provides greater detail because more types of events are logged.

Level	Description
Severe Error	An event is written to the log when a severe problem or critical condition occurs, such as a server failure.
Error	An event is written to the log when an error condition occurs, such as when a connection attempt to a client fails.
Warning	An event is written to the log when a warning condition occurs, such as a server communication failure.
Unusual Activity	An event is written to the log when unusual activity occurs, such as a user trying to log in with an incorrect username.
Information	An event is written to the log with every significant action that takes place, such as the server log starting.