FortiGate Version 3.0 MR4 Administration Guide
424 01-30004-0203-20070102
Log Access Log&Report
The filter settings you apply remains for the duration of the time you are logged in
to the web-based manager. The log filters are reset when you log out of the
web-based manager.
To filter log messages
1 Go to Log&Report > Log Access.
2 Select the tab to view logs from, Memory, FortiAnalyzer or FortiGuard.
3 Select a log type from the Log Type drop-down list.
4 Select the View icon if you are viewing a log file on a FortiAnalyzer unit.
5 Enter the line number you want to view in the Line field.
The line number you entered is shown along with all lines that come after it.
6 Select Raw if you want to view all files in an unformatted format.
You can filter log messages using the Column Settings icon when in formatted
type. With the Column Settings icon, you can view only the message of the log, or
several parts of the log, for example the date, time, source port, destination port,
and ID. See “Column settings” on page 423 for more information.
Deleting logs stored on the FortiGuard Log & Analysis server
You may want to delete or purge logs stored on the FortiGuard Log & Analysis
server. You can delete or purge logs that are 1 month old and up to 24 months old.
This option to delete or purge logs stored on the FortiGuard Log & Analysis server
is only available after enabling logging to the FortiGuard Log & Analysis server.
To delete logs stored on the FortiGuard Log & Analysis server
1 Go to System > Maintenance > FortiGuard Center.
2 Select the blue arrow to expand the FortiGuard Log & Analysis Options.
3 Select a number from the drop-down list in the sentence, To purge logs older than
[#] month(s) now, please click here.
4 Select the link in the sentence, To purge logs older than [#] month(s) now, please
click here.
A message appears similar to the following:
Warning: This will erase log files from FortiGuard. Are you
sure you want to continue?
5 Select OK.
Note: The filters can only be used when viewing log contents in the formatted view.
Note: It is recommended to download all log files before deleting them.