Cisco ISA550, Руководство администратора

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Firewall
Configuring Content Filtering to Control Internet Access
Cisco ISA500 Series Integrated Security Appliances Administration Guide 233
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Configuring Content Filtering to Control Internet Access
Content Filtering blocks or allows HTTP access to websites containing specific
keywords or domains. It controls access to certain Internet sites based on analysis
of its content (domain or URL keyword), rather than its source or other criteria. It is
most widely used on the Internet to filter web access.
Refer to the following topics:
• Configuring Content Filtering Policy Profiles, page 233
• Configuring Website Access Control List, page 234
• Mapping Content Filtering Policy Profiles to Zones, page 235
• Configuring Advanced Content Filtering Settings, page 236
NOTE
Enabling Firewall Content Filtering will disable Web URL Filtering. Enabling Web
URL Filtering will disable Firewall Content Filtering.
Configuring Content Filtering Policy Profiles
A content filtering policy profile is used to specify which websites are blocked or
allowed.
NOTE
Up to 16 content filtering policy profiles can be configured on the security
appliance.
STEP 1
Click Firewall > Content Filtering > Content Filtering Policies .
STEP 2
To add a content filtering policy profile, click Add .
From Zone LAN
To Zone WAN
Services SMTP
Source Address Any
Destination Address OffsiteMail
Match Action Deny