Snort mailing list archives

Re: Snort IDS


From: Dave Osbourne <dave () osbourne uk eu org>
Date: Tue, 25 Oct 2016 15:11:56 +0100

Oh dear - I miss read that, indeed, my reply was for I*P*S....

On 2016-10-25 14:40, Jim Campbell wrote:

I am a new user of Snort and far from an expert but it is my understanding that an IDS (Intrusion Detection System) does not drop packets. For that you need to configure Snort as an Intrusion Prevention System (IPS).

Converting an IDS to an IPS isn't difficult. You need to add a LAN card and change the configuration. An IPS receives a packet on one LAN card, inspects the packet and if all is well forwards it on the second LAN card. If all is not well it drops the offending packet and reports it to Barnyard2.

Hope this helps,

Jim Campbell


On 10/25/2016 2:51 AM, Dave Osbourne wrote:
On my setup there is a log in /var/log/auth.log of the trigger event and the actual packet transgressing is in a .PCAP in /var/log/snort/

So yes, the IDS sensor *can* log the dropped packets, but I understand you can configure it not to...

D

On 2016-10-25 05:13, Murali Krishna wrote:
Hi Team,

Please help me understand the flow of packets in IDS sensor.
Does IDS sensor logs dropped packets?

Thanks & Regards,
Murali krishna.


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