Snort mailing list archives

Re: Snort rules maximum rules per file


From: Hussein Bahaidarah <husseinb () gmail com>
Date: Sun, 26 Jun 2011 20:04:58 +0300

Hello,

I have found after extensive testing that only 131008 rules only fires alert and action. Any rule after that will not 
take any action.

On Jun 25, 2011, at 8:39 PM, Hussein Bahaidarah wrote:

Hello,

Is there a limit on the number of rules support by snort in general? and on per file basis? I have customized a file 
with 942099 rules and it took about 15 minutes to start snort; but no alerts or actions wer fired.

+++++++++++++++++++++++++++++++++++++++++++++++++++
Initializing rule chains...
942099 Snort rules read
    942099 detection rules
    0 decoder rules
    0 preprocessor rules
942099 Option Chains linked into 1 Chain Headers
0 Dynamic rules
+++++++++++++++++++++++++++++++++++++++++++++++++++

+-------------------[Rule Port Counts]---------------------------------------
|             tcp     udp    icmp      ip
|     src       0       0       0       0
|     dst  942099       0       0       0
|     any       0       0       0       0
|      nc       0       0       0       0
|     s+d       0       0       0       0
+----------------------------------------------------------------------------
-- 
Regards,
Hussein Bahaidara

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