To ensure that your network is well-protected from Internet threats, it is important that you download antivirus and anti-spam components regularly. You can choose to update these components automatically or manually.
If you forget to regularly download antivirus and anti-spam components, your network will be at risk from Internet threats. To automate the update process, configure an update schedule on this screen. If your network has limited Internet bandwidth, schedule updates for off-peak hours.
To schedule updates:
Choose Administration > Updates > Components from the menu. The Schedule tab displays by default. If it does not display, click Schedule.
Select the Enable Scheduled Update check box.
Under Update Component, select the components to update. Trend Micro recommends updating all components.
Under Update Schedule, select the update frequency.
Minute intervals—Updates every { } minutes per hour. Select the minute interval. For example, if you select 15, the update is triggered four times an hour: at 00, 15, 30, 45 mins. If you select 30, the update will be triggered twice an hour: at 00 and 30 mins.
Hourly—Updates every hour at { } minutes. Select the number of minutes after the hour. For example, if you select 15, the update is triggered at 15 minutes after the hour, every hour.
Daily—Updates every day at the time you choose. Select the time of day.
Weekly—Updates once a week at the specified day and time. Select a day of the week and the time of day.
Click Save.
If you do not want to wait for the next scheduled update, update the scan engine and pattern files manually. You should update manually if your users received infected email or spam that slipped through the filter, or if you suspect a virus outbreak has taken place on your network.
To update manually:
Click Summary from the menu. The Real-time Statistics screen appears.
Click System to display the System summary information.
Under Components, verify the version numbers of the antivirus, anti-spyware, and anti-spam components that InterScan™ Messaging Security Appliance (IMSA) uses to protect your network.
Select the check boxes next to the components to update.
Click Update.
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