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Configuring the FortiGate unit Next steps
FortiGate-50A/50B, FortiWiFi-50B and FortiGate-100 FortiOS 3.0 MR4 Install Guide
01-30004-0265-20070831 47
5 Specify how often the FortiGate unit should synchronize its time with the NTP
server.
6 Select OK.
Updating antivirus and IPS signatures
Configure the FortiGate unit to connect to the FortiGuard Distribution Network
(FDN) to update the antivirus (including grayware), antispam and IPS attack
definitions.
The FDN is a world wide network of FortiGuard Distribution Servers (FDS). When
the FortiGate unit connects to the FDN, it connects to the nearest FDS. To do this,
all FortiGate units are programmed with a list of FDS addresses sorted by nearest
time zone according to the time zone configured for the FortiGate unit.
You can update your antivirus and IPS signatures using the web-based manager
or the CLI. Before you can begin receiving updates, you must register your
FortiGate unit from the Fortinet web page.
After registering your FortiGate unit, verify the FortiGate unit can connect to the
FDN:
• Check that the FortiGate unit’s system time is correct.
• From the web-based manager, select refresh from the FortiGuard Center.
If you cannot connect to the FDN, follow the procedure for registering your
FortiGate unit and try again or see “Adding an override server” on page 49.
Updating antivirus and IPS signatures from the web-based
manager
After you have registered your FortiGate unit, you can update antivirus and IPS
signatures using the web-based manager. The FortiGuard Center enables you to
receive push updates, allow push update to a specific IP address, and schedule
updates for daily, weekly, or hourly intervals.
To update antivirus definitions and IPS signatures
1 Go to System > Maintenance > FortiGuard Center.
2 Select the blue arrow for AntiVirus and IPS Downloads to expand the options.
3 Select Update Now to update the antivirus definitions.
If the connection to the FDN is successful, the web-based manager displays a
message similar to the following:
Your update request has been sent. Your database will
be updated in a few minutes. Please check your update
page for the status of the update.
After a few minutes, if an update is available, the System FortiGuard Center page
lists new version information for antivirus definitions. The System Status page
also displays new dates and version numbers for the antivirus definitions.
Messages are recorded to the event log indicating whether the update was
successful or not.
Note: Update AV and IPS signatures on a regular basis. If you do not update AV and IPS
signatures regularly, the FortiGate unit can become vulnerable to new viruses.