Snort mailing list archives

Re: Unable to detect port-specific DoS attack


From: Wei Chea Ang <weichea () gmail com>
Date: Tue, 27 Aug 2013 21:21:43 +0800

Can you share the pcap?
On 27 Aug, 2013 7:53 PM, "Mayur Patil" <ram.nath241089 () gmail com> wrote:

Hi,

  I have written rule

 alert tcp any any -> $HOME_NET 514 (msg:"DOS flood denial of service
 attempt";flow:to_server; detection_filter:track by_dst, count 50, seconds
1;
 metadata:service syslog; classtype:attempted-dos; sid:25101; rev:1;)


  which generates alert for at random ports which are not on my lists..fine

   But if I write port-specific it does not logging into alert file
   alert tcp [192.168.21.1,192.168.21.2] any -> $HOME_NET 514 (msg:"DOS
  flood denial of service attempt";flow:to_server; detection_filter:track
by_dst,
  count 50, seconds 1; metadata:service syslog; classtype:attempted-dos;
  sid:25101; rev:1;)

 what actually am I missing??

 Please help

 Thanks !


--
*Cheers,
Mayur*





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