Secure Computing SSL Scanner, Руководство пользователя

Страница: 80 / 191

Common
Media Type Filter
The
Media Type Filter
section looks like this:
Using this section, you can configure actions, e. g.
Block
,
Block, log and
notify
,
Allow
, etc., for the Media Type Filter.
This filter manages the flow of incoming media types for HTTP and FTP down-
loads, as well as for SMTP.
A media (content) type is a general category of data content, such as an ap-
plication, audio content, a text message, an image, a video stream, etc. The
media type tells the application that receives the data what kind of application
is needed to process the content, e. g. Real Audio is to play the audio content
for a user. Each of these media types also have subtypes, e. g. the text media
type has four subtypes: plain, rich text, enriched, and tab-separated values.
The actions that you configure here will be executed according to the result
achieved by the Media Type Filter for a filtered object.
You can also configure different actions for Web and e-mail traffic.
After specifying the appropriate settings here, click on
Apply Changes
to
make them effective.
Use the drop-down lists provided here to configure actions in the following way:
•
Default action for unlisted media types
Should this filter find a media type that is not currently listed in the Media
Type White List or Black List, this is what will happen to it.
•
Entry found in Media Type Black List
The actions configured here will be executed for media types that are found
in the Media Type Black List.
•
Entry found in Media Type White List
The actions configured here will be executed for media types that are found
in the Media Type White List.
3–10