Re: Barnyard and multiple snort processes

[Doug Burks <doug.burks () gmail com>]

Hi Greg,

Yes, you will need a barnyard2 process for each instance of snort.  You
might want to take a look at our scripts in Security Onion 12.04 Beta.  You
set your desired number of processes and the scripts then automatically
spin up that many snort instances in a pfring-cluster and a barnyard2
process for each of them:
http://code.google.com/p/security-onion/wiki/Beta

Thanks,
Doug


On Fri, Nov 9, 2012 at 6:17 PM, Greg Williams <gwillia5 () uccs edu> wrote:

>  After I reconfigured the server earlier this week I noticed that I
> should have way more alerts than I was getting within the alert file.  Here
> is my configuration in Barnyard –****
>
> ** **
>
> output alert_fast: /var/log/snort/alert****
>
> output database: log, mysql, user=snort password=xxxxxxx dbname=snort
> host=localhost****
>
> ** **
>
> I’m only getting alerts for 1 snort process.  I know this because when I
> stop the 4 snort processes and look at the alerts only the last one matches
> up with the amount of alerts I see in my database and the alert log.****
>
> ** **
>
> Do I need to make multiple barnyard processes as well? This is for the
> last 5 minutes of testing:****
>
> ** **
>
> snort[10470]:      Alerts:           41 (  0.001%)****
>
> snort[10475]:      Alerts:           59 (  0.001%)****
>
> snort[10479]:      Alerts:           66 (  0.001%)****
>
> snort[10481]:      Alerts:           62 (  0.001%)****
>
> ** **
>
> Alert output: only 62****
>
> ** **
>
> 10614 ?        00:00:17 snort****
>
> 10620 ?        00:00:10 snort****
>
> 10624 ?        00:00:09 snort****
>
> 10626 ?        00:00:00 snort****
>
> 10483 ?        00:00:00 barnyard2****
>
> ** **
>
> ** **
>
>
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-- 
Doug Burks
http://securityonion.blogspot.com

------------------------------------------------------------------------------
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