Secure Computing SSL Scanner - Manual (Page 122)

Common
Using this section, you can configure a filter to eliminate Web bugs.
These are also known as clear GIFs or Web beacons. They are are usually
1 pixel x 1 pixel mini-images in size and are used to track user navigation
behavior on Web sites and in e-mail to see if an e-mail was opened by the
recipient.
The filter is also applied to the same technique used in HTML messages.
If you want to use this filter, make sure the checkbox next to the section heading
is marked. The checkbox is marked by default.
After modifying this setting, click on
Apply Changes
to make the modification
effective.
Referer Filter
The
Referer Filter
section looks like this:
Using this section, you can configure a filter to remove referer strings that report
the last page visited by a user.
If you want to use this filter, make sure the checkbox next to the section heading
is marked. The checkbox is marked by default.
After modifying this setting or any other setting in this section, click on
Apply
Changes
to make the modification effective.
To configure the filtering of referer strings, use the radio buttons of the area
labeled:
•
Remove referer
Check or uncheck one of these three radio buttons as needed:
—
always
If this option is enabled a referer is always removed regardless of where
the user in question came from.
—
if the domain or the path is different
If this option is enabled a referer is removed if the user came from a
different path or URL.
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