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Page 108 SonicWALL Internet Security Appliance Administrator’s Guide
warranted by these fraudulent certificates. If digital certificates are proven fraudulent, then the
SonicWALL blocks the Web content and the files that use these fraudulent certificates.
Known fraudulent certificates blocked by SonicWALL include two certificates issued on January
29 and 30, 2001 by VeriSign to an impostor masquerading as a Microsoft employee.
• 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.
• Don’t Block Java/ActiveX/Cookies to Trusted Domains
Select this option if you have trusted domains using Java, ActiveX, and Cookies. To add a trusted
domain, enter the domain name into the Add Trusted Domain field. Click Update to add the
domain to the list of trusted domains. To delete a domain, select it from the list, and then click
Delete.
Trusted Domains
Trusted Domains can be added in the Restrict Web Features section of the Configure tab. If you trust
content on specific domains, you can select Don’t block Java/ActiveX/Cookies to Trusted Domains
and then add the Trusted Domains to the SonicWALL. Java scripts, ActiveX, and cookies are not
blocked from Trusted Domains if the checkbox is selected.
Message to display when a site is blocked
Enter your customized text to display to the user when access to a blocked site is attempted. The
default message is Web Site blocked by SonicWALL Filter. Any message, including embedded HTML,
up to 255 characters long, can be entered in this field.
Customization of Content Filtering is not available if you select N2H2 as your source for your Content
Filter List. Refer to your N2H2 documentation for details on configuring N2H2 Internet Filtering for
your network.