Re: data from multiple sessions in one alert/packet

[Joel Esler <joel.esler () sourcefire com>]

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Snort has to eat alot of cycles to input stuff into the DB, while it  
is doing that, it's not sniffing as efficiently as it should.

Snort should output to either one of two things A) pcap binary, or B)  
Unified binary.  Preferred method recommended from me is always going  
to be Unified, have barnyard read that unified file and input stuff  
into the db.

A.k.a.  Don't have your IDS inserting into a DB, let your IDS be an  
IDS, let barnyard insert into DB.

Joel


On May 18, 2006, at 6:11 PM, Jon Hart wrote:

> On Thu, May 18, 2006 at 02:07:08PM -0400, Joel Esler wrote:
> > Jon,
> >
> > What type of output module are you using?
> >
> > Joel
>
> I'm using the database output plugin.  I know that can be a problem
> under high load, right?  Is that high alert load or just high pps load
> in general?  My signatures are fairly tight so we get maybe 10-20
> hits/hour, though occassionally we'll get a peak when someone scans us
> for something.
>
> I had been using barnyard, but dumped it while attempting to debug
> another problem.  If barnyard will help here, I'll do that again.
>
> -jon
>
>
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- --Joel
joel.esler () sourcefire com
http://demo.sourcefire.com/jesler.pgp.key





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-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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