Re: metadata questions

[Joel Esler <jesler () sourcefire com>]

On May 30, 2013, at 2:32 PM, "Morris, Shane (US SSA)" <shane.morris () baesystems com> wrote:

> 1.       According to the snort manual the metadata key values are engine, soid and service but Ive seen rules 
> written with other options like “metadata: author snortguru”. Is there a list of available keys or are all keys other 
> than engine, soid and service treated as comments.

It's a free flowing text field.  The only field that Open Source Snort uses is "service", and only if you have Adaptive 
profiling turned on with a host attribute table.

>  2.       If I am writing a rule that I want to fire on HTTP and non-HTTP traffic how could I do this since you have 
> to use metadata and specify a service in the newest version of Snort?

Can you give me an example?  (you only have to specify a service in the >=5.x Sourcefire product, this does not effect 
Open Source Snort)

--
Joel Esler
Senior Research Engineer, VRT
OpenSource Community Manager
Sourcefire

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