Cisco Cisco Packet Data Gateway (PDG) Manuale Di Manutenzione
Generally Available 06-30-2010
Content Filtering in Release 9.0
1-9
Content Filtering in Release 9.0
This section provides information for new features in the Content Filtering product.
Category-based Static-and-Dynamic Content Filtering
This release introduces support for Category-based Static-and-Dynamic Content Filtering,
wherein if static rating categorizes a URL as either “dynamic” or “unknown”, the
“requested content” is sent for dynamic rating. Wherein the “requested content” is analyzed
and categorized. Action is taken based on the category determined by dynamic rating, and
the action configured for that category in the subscriber’s content filtering policy. Possible
actions include permitting, blocking, redirecting, and inserting/altering content.
wherein if static rating categorizes a URL as either “dynamic” or “unknown”, the
“requested content” is sent for dynamic rating. Wherein the “requested content” is analyzed
and categorized. Action is taken based on the category determined by dynamic rating, and
the action configured for that category in the subscriber’s content filtering policy. Possible
actions include permitting, blocking, redirecting, and inserting/altering content.
Dynamic Content Filtering enables on-the-fly content analysis of Web traffic using different
content analysis techniques. When a Web page is received, it is analyzed and then
categorized according to the content found in the page. Whether a Web site has existed for
five months or for five minutes does not matter since determination of the category to which
the Web page belongs is made just at the time of request. A combination of static filtering
and dynamic inspection provides real accuracy and scalability as the Web weaves an
increasingly sophisticated network of sites.
content analysis techniques. When a Web page is received, it is analyzed and then
categorized according to the content found in the page. Whether a Web site has existed for
five months or for five minutes does not matter since determination of the category to which
the Web page belongs is made just at the time of request. A combination of static filtering
and dynamic inspection provides real accuracy and scalability as the Web weaves an
increasingly sophisticated network of sites.
I
MPORTANT
Category-based Content Filtering can only work in static-only or in static-and-dynamic
modes. Dynamic-only Content Filtering mode is not supported.
modes. Dynamic-only Content Filtering mode is not supported.
For more information, refer to the Content Filtering Services Administration Guide.