Recording Logs In System Memory; Log Message Levels - Fortinet FortiGate FortiGate-800 Installation And Configuration Manual

Recording logs

Recording logs in system memory

Log message levels

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If your FortiGate unit does not contain a hard disk, you can configure the FortiGate
unit to reserve some system memory for storing current event, attack, antivirus, web
filter, and email filter log messages. Logging to memory allows quick access to only
the most recent log entries. The FortiGate unit can store a limited number of
messages in system memory. After all available memory is used, the FortiGate unit
deletes the oldest messages. If the FortiGate unit restarts, the log entries are lost.
Note: The FortiGate unit can record only the event and attack log messages in system memory.
To record logs in system memory
1 Go to Log&Report > Log Setting.
2 Select the Log to memory check box.
3 Select the severity level for which you want to record log messages.
The FortiGate logs all levels of severity down to, but not lower than, the level you
choose. For example, if you want to record emergency, alert, critical, and error
messages, select Error.
See "Log message levels" on page
4 Select Config Policy.
To configure the FortiGate to filter the types of logs and events to record, use the
procedures in "Filtering log messages" on page
5 Select Apply.
Table 43 lists and describes FortiGate log message levels.
Table 43: FortiGate log message levels
Levels Description
0 - Emergency The system has become unstable.
1 - Alert Immediate action is required.
2 - Critical Functionality is affected.
3 - Error An error condition exists and
functionality could be affected.
4 - Warning Functionality could be affected.
5 - Notice Information about normal events.
6 - Information General information about system
operations.
312.
313.
Generated by
Emergency messages not
available.
NIDS attack log messages.
DHCP
Error messages not available.
Antivirus, Web filter, email filter, and
system event log messages.
Antivirus, Web filter, and email filter
log messages.
Antivirus, Web filter, email filter log
messages, and other event log
messages.
Logging and reporting
Fortinet Inc.