block streaming video from Facebook And Youtube

Hi

this what is written here is actually a content-header over MIME Information of files and can be use for everything filebased because MIME is for every file available. To get the correct MIME information for whatever I would say let's do wiresharking. If you do so you will see following information:

       Hypertext Transfer Protocol        HTTP/1.0 200 OK\r\n        Request Version: HTTP/1.0        Response Code: 200        Server: DCLK-AdSvr\r\n        Content-Type: video/x-ms-asf\r\n        X-Google-Inred-Content-Type: video/x-ms-asf\r\n        Content-Length: 410\r\n        Content-Encoding: gzip\r\n               Hypertext Transfer Protocol        HTTP/1.1 200 OK\r\n        Request Version: HTTP/1.1        Response Code: 200        Last-Modified: Mon, 14 Sep 2009 00:40:51 GMT\r\n        Content-Type: video/x-flv\r\n        Content-Length: 200994\r\n        Connection: close\r\n        Content-Disposition: attachment; filename="video.flv"\r\n        Expires: Thu, 29 Oct 2009 09:06:24 GMT\r\n        Cache-Control: public,max-age=3600\r\n        Date: Thu, 29 Oct 2009 08:06:24 GMT\r\n        Server: gvs 1.0\r\n

You see the relevant information is:

       Content-Type: video/x-ms-asf\r\n        Content-Type: video/x-flv\r\n

This can now be used for configuring the "content-header" using RegEx which means for our example:

video\\/.*

audio\\/.*

NOTE the \\ is used to "exclud" / because this sign is a "special character" and has to be excluded within RegEx!

Now as already shown here you can configure the "content-header":

       # config webfilter content-header        # edit 1        # config entries        # edit "video\\/.*"        # set action block        # next        # edit "audio\\/.*"        # set action exempt        # next        # end        # set name "Content-Header" "block-video-exempt-audio"        # next        # end

What is important here is to now what block, exempt meaning "action" means:

            allow  — Allow Content             block  — Block Content             exempt — Exclude UTM Function

At least use the configured content-header with his integer (1) within webfilter config:

       FortiOS 5.0 / 5.2        # config webfilter profile        # edit [Name of the profile]        # config web        # set content-header-list 1        # end        # next        # end

Thats it.....

have fun

Andrea