Snort mailing list archives

Re: Suppress versus #Rule for performance.


From: JJ Cummings <cummingsj () gmail com>
Date: Thu, 20 May 2010 15:23:26 -0600

Another approach might be to enable only what you need.  Using pulledpork
you can enable everything for MSXX-XXXX as an example.  So compile a list of
all of the MSXX-XXXXs from the year's that you want and put those in
enablesid for PP.. .just as a thought....

JJC

On Thu, May 20, 2010 at 3:15 PM, Jefferson, Shawn <
Shawn.Jefferson () bcferries com> wrote:

 Hi,



There are lots of rules for systems that we don’t run, and I’ve thought
about disabling them to improve performance, however this is a daunting job
as it seems I have to go into every rules file (actually oinkmaster or
pulled pork conf) and disable them.  How are other people doing this, or are
you just not doing it at all?



Thanks,

Shawn


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

*From:* Joel Esler [mailto:jesler () sourcefire com]
*Sent:* Thursday, May 20, 2010 2:04 PM
*To:* Bill Pickens
*Cc:* Snort-users () lists sourceforge net
*Subject:* Re: [Snort-users] Suppress versus #Rule for performance.



On May 20, 2010, at 4:55 PM, Bill Pickens wrote:



 Hello Everyone,

After Snort has loaded....



Is there a difference in Snort performance between suppressing a rule or
"#" commenting the rule out?







Commenting out a rule turns the rule off, which means that content does not
need to be memorized, therefore -- faster.



Suppressing a rule just turns off the alert, the rule is still being ran.



--

Joel Esler














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