Snort mailing list archives

Re: Certin ET rulesets and 100 percent usage.


From: Matt Jonkman <jonkman () jonkmans com>
Date: Thu, 07 May 2009 12:15:50 -0400

Straight IP matching is something Snort doesn't do well. Unfortunately.
So this isn't that unexpected.

I'd only run those rulesets where you can afford the cycles. or run a
second snort for these alone and turn off everything in it's config to
streamline some.

Matt

jlay () slave-tothe-box net wrote:
So here's something interesting.  Enabling ANY of the below rulesets
results in snort using 100% CPU:

emerging-botcc.rules
emerging-compromised.rules
emerging-drop.rules
emerging-dshield.rules
emerging-rbn.rules
emerging-tor.rules

Without snort uses around 49%.  Using 2.8.4.1 with about 700K average
traffic.  Any thoughts?  Thanks.

James




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Series Scanner you'll get full speed at 300 dpi even with all image 
processing features enabled. http://p.sf.net/sfu/kodak-com
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