Web Gateway 7.1.5 Product Guide - McAfee

Database updates
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System configuration
Database updates 7
Information retrieved from external databases for use in the filtering process needs to be updated on
the appliance from time to time. This section tells you how you can schedule automatic updates and
also how to update this information manually.
Web objects are filtered on the appliance in a rule-based process. The filtering rules need information
on these objects before they can trigger actions, such as blocking access to an object or allowing it.
They rely for this information on special modules.
For example, a virus and malware filtering rule relies on the Antivirus module (or engine) to find out
whether an object is virus-infected, or a URL filtering rules relies on the URL Filter module for URL
category information.
The modules retrieve this information, for example, virus signatures stored in DAT files, from external
databases. The database updates on the appliance are updates of this information.
You can update database information on the appliance using different methods.
• Manual engine update — You can manually update database information for the modules of the
appliance you are currently logged on to.
If you are running multiple appliances and use Central Management functions to administer them,
this manual update applies also to all appliances that you have included as nodes in this Central
Management configuration.
• Automatic engine update — You can also configure automatic updates in regular intervals for the
modules of the appliance you are currently logged on to. These updates can retrieve information:
• From the internet — Information is then downloaded from the relevant external databases.
Note: Database information is updated in this way immediately after the initial setup of an appliance.
• From other nodes in a Central Management configuration — Information is then downloaded
from these nodes. For every node, you can in turn configure whether uploading linformation from
it to other nodes is allowed.
You can configure these updates when you set up the Central Management configuration,
specifying for each node how it should behave regarding automatic updates.
Update database information manually
This section tells you how update database information manually. The update applies to the modules of
the appliance you are logged on to and to those of other appliances if you have included them in a
Central Management configuration.
Complete the following procedure to update database information manually:
1 Go to Configuration | Appliances.
2 On the appliances toolbar, click Manual Engine Update. The update is performed.
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