Chapter 37 Content Filtering
ZyWALL USG Series User’s Guide
702
Action for Security Threat
Web Pages
Select
Pass
to allow users to access web pages that match the Security Threat
categories that you select below.
Select
Block
to prevent users from accessing web pages that match the Security
Threat categories that you select below. When external database content filtering
blocks access to a web page, it displays the denied access message that you
configured in the
Content Filter General
screen along with the category of the
blocked web page.
Select
Warn
to display a warning message before allowing users to access web
pages that match the Security Threat categories that you select below.
Select
Log
to record attempts to access web pages that match the Security
Threat categories that you select below.
Action for Managed Web
Pages
Select
Pass
to allow users to access web pages that match the other categories
that you select below.
Select
Block
to prevent users from accessing web pages that match the other
categories that you select below. When external database content filtering
blocks access to a web page, it displays the denied access message that you
configured in the
Content Filter General
screen along with the category of the
blocked web page.
Select
Log
to record attempts to access web pages that match the other
categories that you select below.
Action for Unrated Web
Pages
Select
Pass
to allow users to access web pages that the external web filtering
service has not categorized.
Select
Block
to prevent users from accessing web pages that the external web
filtering service has not categorized. When the external database content filtering
blocks access to a web page, it displays the denied access message that you
configured in the
Content Filter General
screen along with the category of the
blocked web page.
Select
Warn
to display a warning message before allowing users to access web
pages that the external web filtering service has not categorized.
Select
Log
to record attempts to access web pages that are not categorized.
Action When Category
Server Is Unavailable
Select
Pass
to allow users to access any requested web page if the external
content filtering database is unavailable.
Select
Block
to block access to any requested web page if the external content
filtering database is unavailable.
Select
Warn
to display a warning message before allowing users to access any
requested web page if the external content filtering database is unavailable.
The following are possible causes for the external content filtering server not being
available:
• There is no response from the external content filtering server within the time
period specified in the
Content Filter Server Unavailable Timeout
field.
• The Zyxel Device is not able to resolve the domain name of the external
content filtering database.
• There is an error response from the external content filtering database. This can
be caused by an expired content filtering registration (External content
filtering’s license key is invalid”).
Select
Log
to record attempts to access web pages that occur when the external
content filtering database is unavailable.
Select Categories
Select All Categories
Select this check box to restrict access to all site categories listed below.
Clear All Categories
Select this check box to clear the selected categories below.
Table 253 Configuration > UTM Profile> Content Filter > Profile > Add > Category Service (continued)
LABEL
DESCRIPTION
Summary of Contents for USG110
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