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SONICWALL SONICOS STANDARD 3.0 ADMINISTRATOR’S GUIDE
265
SonicWALL Content Filtering Service
C
HAPTER
44
Chapter 44: Configuring SonicWALL Content
Filtering Service
SonicWALL Content Filtering Service
SonicWALL Content Filtering Service (CFS) enforces protection and productivity policies for
businesses, schools and libraries, as well as reduce legal and privacy risks while minimizing
administration overhead. SonicWALL CFS utilizes a dynamic database of millions of URLs, IP
addresses and domains to block objectionable, inappropriate or unproductive Web content. At the
core of SonicWALL CFS is an innovative rating architecture that cross references all Web sites
against the database at worldwide SonicWALL
co-location facilities. A rating is returned to the SonicWALL security appliance and then compared to
the content filtering policy established by the administrator. Almost instantaneously, the Web site
request is either allowed through or a Web page is generated by the SonicWALL security appliance
informing the user that the site has been blocked according to policy.
With SonicWALL CFS, network administrators have a flexible tool to provide comprehensive filtering
based on keywords, time of day, trusted and forbidden domain designations, and file types such as
Cookies, Java™ and ActiveX® for privacy. SonicWALL CFS automatically updates the filters, making
maintenance simple.
SonicWALL CFS can also be customized to add or remove specific URLs from the blocked list and to
block specific keywords. When a user attempts to access a site that is blocked by the SonicWALL
security appliance, a customized message is displayed on the user’s screen. SonicWALL security
appliances can also be configured to log attempts to access sites on the SonicWALL Content Filtering
Service database, on a custom URL list, and on a keyword list to monitor Internet usage before
putting new usage restrictions in place.
Note: Refer to the SonicWALL Content Filtering Service Administrator’s Guide on the Resource CD
or the SonicWALL documentation Web site at <http://www.sonicwall.com/services/
documentation.html> for complete instructions.