User guide

Configuring the WebBlocker Service
User Guide 223
Setting privileges
WebBlocker differentiates URLs based on their content. Select the types of
content accessible during operational and non-operational hours using
the Privileges tabs. The options are identical for Operational and Non-
operational. From the proxy’s dialog box:
1 Click the WB: Operational Privileges tab or the WB: Non-operational
Privileges tab.
2 Enable the content type checkboxes for the categories you would like
to block.
For more information on WebBlocker categories, see the Reference Guide.
Creating WebBlocker exceptions
WebBlocker provides an exceptions control to override any of the
WebBlocker settings. Exceptions take precedence over all other
WebBlocker rules; you can add sites that you want to be allowed or
denied above and beyond all other settings. Sites listed as exceptions
apply only to HTTP traffic and are not related to the Blocked Sites list.
The exceptions option maintains a list of IP addresses that you want to
either specifically allow or deny, regardless of other WebBlocker settings.
You can specify exceptions by domain name, network address, or host IP
address. You can also fine-tune your exceptions by specifying a port
number, path name, or string which is to be blocked for a particular Web
site. For example, if you wanted to block only www.sharedspace.com/
~dave, because Dave’s site contains nude pictures, you would enter
“
~dave” to block that directory of sharedspace.com. This would still allow
users to have access to www.sharedspace.com/~julia, which contains a
helpful article on increasing productivity.
If you wanted to block any sexually explicit content that might be on
sharedspace.com, you might enter
*sex, to block a Web page such as
www.sharedspace.com/~george/sexy.htm. By placing an asterisk (*) in front
of the string you want to match, it will be matched if that string appears
anywhere in the location part of the URL. However, you cannot enter
*sex in the pattern section, and expect to block all URLs that contain the
word “sex.” The * option can be used only to modify the exceptions
within a specific URL. For example, you can block www.sharedspace.com/
*sex and expect that www.sharedspace/sexsite.html will be blocked.