Re: rule?

[waldo kitty <wkitty42 () windstream net>]

On 8/13/2013 17:18, Frank Calone wrote:
> Here is my rule:
>
> alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"pcap file hit";
> flow:to_client,established; content:"Content-Type: text/html"; http_header;
> content:"|0d 0a|"; http_header; file_data; content:"|1f 2f|"; depth:15;
> flowbits:set,tagged; tag:session,0,packets,1000,seconds; sid:3889999; rev:0;)

what is this section for? is it necessary?

   content:"|0d 0a|"; http_header;

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