MIME-Type Filter

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Note!
For Unrestricted IP/MAC nor Banned IP/MAC addresses - Members of the group "Extended" are also not affected by these restrictions, if the proxy is used with “Local authentication”.

The MIME-Type Filter = (http_reply_access deny blocked_mimetypes findable under (/var/ipfire/proxy/advanced/mime) conduces the filtering of content that is not verified by the suffix of the file extension, but for the verification of the "Content-type" in the header area. Thus, individual objects of a site, such as for example audio or video, can be blocked.

To activate the MIME-Type filtering, you need to set the hook and "Save and Reload" the Squid WUI.

Example of a filtering of pictures (jpeg, png), Javascript and video (mpeg und Flash):

Note!
Squid works in here with Regular expressions, so a "audio/aiff" would also block files with *.aif, *.aiff, *.aifc suffixes.

The pattern of a MIME-type consists of 2 parts:
video/mpeg

Hereby, the media type as well as the subtype is specified, both are separated from each other with a "/".

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Additional links:

• http://www.iana.org/assignments/media-types/index.html
• http://de.selfhtml.org/diverses/mimetypen.htm