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SonicOS 5.8.1 Administrator Guide
Content Filter Type
There are three types of content filtering available on the SonicWALL security appliance. These
options are available from the Content Filter Type menu.
• SonicWALL CFS - Selecting SonicWALL CFS as the Content Filter Type allows you to
access SonicWALL CFS functionality that is included with SonicOS Enhanced, and also to
configure custom CFS Policies that are available only with a valid subscription. You can
obtain more information about SonicWALL Content Filtering Service at
http://www.sonicwall.com/prod
ucts/cfs.html
• Websense Enterprise - Websense Enterprise is also a third party content filter list
supported by SonicWALL security appliances.
Clicking the Ne
twork > Zones link in Note: Enforce the Content Filtering per zone from the
Network > Zone page, displays the Network > Zones page for enabling SonicWALL Content
Filtering Service on network zones.
Restrict Web Features
Restrict Web Features enhances your network security by blocking potentially harmful Web
applications from entering your network.
Restrict Web Features are included with SonicOS. Select any of the following applications to
block:
• ActiveX - ActiveX is a programming language that embeds scripts in Web pages. Malicious
programmers can use ActiveX to delete files or compromise security. Select the ActiveX
check box to block ActiveX controls.
• Java - Java is used to download and run small programs, called applets, on Web sites. It
is safer than ActiveX since it has built-in security mechanisms. Select the Java check box
to block Java applets from the network.
• Cookies - Cookies are used by Web servers to track Web usage and remember user
identity. Cookies can also compromise users' privacy by tracking Web activities. Select the
Cookies check box to disable Cookies.
• Access to HTTP Proxy Servers - When a proxy server is located on the WAN, LAN users
can circumvent content filtering by pointing their computer to the proxy server. Check this
box to prevent LAN users from accessing proxy servers on the WAN.
Trusted Domains
Trusted Domains can be added to enable content from specific domains to be exempt from
Restrict Web Features.