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v1.0, September 2009
Chapter 6
Content Filtering and Optimizing Scans
This chapter describes how to apply the content filtering features of the UTM and how to optimize
scans to protect your network. This chapter contains the following sections:
• “About Content Filtering and Scans” on this page.
• “Configuring E-mail Protection” on page 6-3.
• “Configuring Web and Services Protection” on page 6-19.
• “Setting Web Access Exceptions and Scanning Exclusions” on page 6-41.
About Content Filtering and Scans
The UTM provides very extensive Web content and e-mail content filtering options, Web
browsing activity reporting, e-mail anti-virus and anti-spam options, and instant alerts via e-mail.
You can establish restricted Web access policies that are based on the time-of-day, Web addresses,
and Web address keywords. You can also block Internet access by applications and services, such
as instant messaging and peer to peer file sharing clients.
Note: Traffic that passes on the UTM’s VLANs and on the secondary IP addresses that
you have configured on the LAN Multi-homing screen (see “Configuring Multi-
Home LAN IPs on the Default VLAN” on page 4-11) is also scanned for content
and malware threats.
Note: For information about how to monitor blocked content and malware threats in real-
time, see “Monitoring Real-Time Traffic, Security, and Statistics” on page 11-14.
For information about how to view blocked content and malware threats in the
logs, see “Querying Logs and Generating Reports” on page 11-32.