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To block a Web site that is not blocked by the Content Filter List, enter the host
name, such as "www.bad-site.com" into the Forbidden Domains field. 256 entries
may be added to the Forbidden Domains list.
Note: Do not include the prefix "http://" in either the Trusted Domains or Forbidden
Domains the fields. All subdomains will be affected. For example, entering "yahoo.com"
will apply to "mail.yahoo.com" and "my.yahoo.com".
Click Update. Once the SonicWALL has been updated, a message confirming the
update is displayed at the bottom of the browser window.
Note: Customized domains do not need to be re-entered when the Content Filter
List is updated each week and do not require a filter list subscription.
To remove a trusted or forbidden domain, select it from the appropriate list, and click
the Delete Domain button. Once the domain has been deleted, a message is
displayed at the bottom of the Web browser window.
•
Enable Content Filter List Customization
To deactivate Content Filter List customization, uncheckthe Enable Content
Filter List Customization checkbox, and click Update. This option allows you
to enable and disable customization without removing and re-entering custom
domains.
•
Disable Web traffic except for Trusted Domains
When the Disable Web traffic except for Trusted Domains checkbox is
checked, the SonicWALL only allows Web access to sites on the Trusted Domains
list.
•
Don't block Java/ActiveX/Cookies to Trusted Domains
When this box is checked, SonicWALL permits Java, ActiveX and Cookies from sites
on the Trusted Domains list to the LAN. This checkbox allows Java, ActiveX or
Cookies from sites that are known and trusted.
•
Message to display when a site is blocked
When a user attempts to access a site that is blocked by the SonicWALL Content
Filter List, a message is displayed on their screen. The default message is "Web
Site Blocked by SonicWALL Filter". Any message, including embedded HTML, up to
255 characters long, may be defined.
The following example displays a message explaining why the Web site was blocked,
with links to the Acceptable Use Policy and the Network Administrator's E-mail address:
Access to this site was denied because it violates this company's <A HREF=http://
www.your-domain.com/acceptable_use _policy.htm>Acceptable Use Policy</A>.
Please contact the <A HREF="admin@your-domain.com"> Network Administrator</
A> if you feel this was in error.
SonicWALL Internet Security Appliance Guide Page 63
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