[Snort-users] Another Snort Rules Question

Scott Elgram SElgram at ...10477...
Wed Sep 8 13:18:14 EDT 2004


Erik,
    Thankyou for that, I looked into and it may just be what I need,
however......is there a way i can set so it logs like normal, with the
queue, but stops if a particular rule is found true?

-Scott

----- Original Message ----- 
From: "Erik Fichtner" <emf at ...367...>
To: "Scott Elgram" <SElgram at ...10477...>
Cc: <snort-users at lists.sourceforge.net>
Sent: Tuesday, September 07, 2004 5:04 PM
Subject: Re: [Snort-users] Another Snort Rules Question


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> On Tue, Sep 07, 2004 at 04:38:31PM -0700, Scott Elgram wrote:
> > Hello again,
> >     I have 2 rules....(yes this is pointless and bad practice, I know,
just bare with me here).
> >
> > alert icmp 192.168.0.31 any -> 192.168.0.240 any (msg: "Test ICMP ping
1";)
> > alert icmp 192.168.0.31 any -> 192.168.0.240 any (msg: "Test ICMP ping
2";)
> >
> >     Ok, I am 192.168.31 and I ping 192.168.0.240........In ACID I get 2
alerts.  One for msg: "Test ICMP ping 1" and one for "Test ICMP ping 2".
Now, I could be wrong here but I thought after a packet is shown true to a
rule Snort stops comparing the packet to rules.
>
> in 2.2.0RC1, they added multiple events in "event_queue". see
doc/README.event_queue.
> You can tune how many alerts will fire on a particular event.  If you're
in an
> environment where you're alerting on more generic misbehavior and have
some
> back-end processor that can handle multiple alerts, it's pretty cool
stuff.
> Otherwise, it can be a little noisier than usual.
>
>
> - -- 
> Erik Fichtner
> Principal Engineer, Information Security, ServerVault Corp.
> 703-652-5900
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