AVIRA ANTIVIR UNIX WEBGATE User Manual page 34

Configuration
Scanning Outgoing Data Traffic (Request Modification)
The ICAP Client sends an HTTP request to WebGate (ICAP-Server) for scanning. If
the data is not infected, it is returned to the ICAP Client and from there it is sent
to the destination server. If the request is blocked (i. e. in case of a virus detection),
WebGate generates an HTML page, based on the corresponding HTML template,
and sends this to the ICAP Client. In this case, the original request is not sent to
the server anymore.
You can find further details about ICAP server integration in the ICAP Client
documentation.
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