SonicWALL TELE3 SP, Руководство администратора

Страница: 41 / 210

Page 40 SonicWALL TELE3 SP Administrator’s Guide
To allow access to a Web site that is blocked by the Content Filter List, enter the host name,
such as “www.ok-site.com”, into the Allowed Domains fields. 256 entries can be added to the
Allowed Domains list.
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 can be added to the
Forbidden Domains list.
Note : Do not include the prefix “http://” in either the Allowed Domains or Forbidden Domains
the fields. All subdomains are affected. For example, entering “yahoo.com” applies to
“mail.yahoo.com” and “my.yahoo.com”.
To remove a trusted or forbidden domain, select it from the appropriate list, and click Delete
Domain . Once the domain has been deleted, a message is displayed at the bottom of the Web
browser window.
To enable blocking using
Keywords , select the Enable Keyword Blocking check box.
Enter the keyword to block in the Add Keyword field, and click Update . Once the keyword
has been added, a message confirming the update is displayed at the bottom of the browser
window.
To remove a keyword, select it from the list and click
Delete Keyword . Once the keyword has
been removed, a message confirming the update is displayed at the bottom of the browser
window.
Note : Customized domains do not have to be re-entered when the Content Filter List is
updated each week and do not require a URL list subscription.
• Enable Allowed/Forbidden Domains
To deactivate Custom Filter customization, clear the Enable Allowed/Forbidden
Domains , and click Update . This option allows you to enable and disable customization
without removing and re-entering custom domains.
• Enable Keyword Blocking
Select the Enable Keyword Blocking if you want to block Web traffic based on your list of
customized keywords.
• Disable all Web traffic except for Allowed Domains
When the Disable Web traffic except for Allowed Domains check box is selected, the
SonicWALL only allows Web access to sites on the Allowed Domains list. With careful
screening, this can be nearly 100% effective at blocking pornography and other objectional
material.
Time of Day
The Time of Day feature allows you to define specific times when Content Filtering is
enforced. For example, you could configure the SonicWALL to filter employee Internet access
during normal business hours, but allow unrestricted access at night and on weekends.
Note : Time of Day restrictions only apply to the Content Filter List, Customized blocking and
Keyword blocking. Consent and Restrict Web Features are not affected.