Snort mailing list archives

Re: portscan2-ignorehosts & portscan-ignorehosts


From: "Distribution Lists" <dist-lists () e-securenetworks net>
Date: Mon, 2 Dec 2002 13:54:23 -0600 (CST)

I added these preprocessors using SnortCenter 0.9.6
But aren't the rule in the wrong order ?

preprocessor portscan2: scanners_max 3200, targets_max 5000, target_limit
5, port_limit 20, timeout 60
preprocessor portscan-ignorehosts: 24.167.76.32
preprocessor portscan: $HOME_NET 4 3 portscan.log
preprocessor portscan2-ignorehosts:  24.167.76.32


Shouldn't the 'portscan-ignorehosts' be after 'preprocessor portscan' ?

Why are you using both spp_portscan and spp_portscan2 ?

I only just moved to 1.9.0, I was using 1.8.6 before, and had spp_portscan
configured. I wasn't sure which was the better, so I configured both :)

What is the better, spp_portscan or spp_portscan2 ?

Regards

Your alert came from spp_portscan, add the following to that line:
preprocessor portscan-ignorehosts: 24.167.76.32/32

Or the following for spp_portscan2
preprocessor portscan2-ignorehosts: 34.167.76.32/32

Why are you using both spp_portscan and spp_portscan2 ?

Cheers!

    - Alberto

Distribution Lists wrote:

I have this in my snort.conf

preprocessor portscan2: scanners_max 3200, targets_max 5000,
target_limit 5, port_limit 20, timeout 60
preprocessor portscan-ignorehosts: 24.167.76.32
preprocessor portscan: $HOME_NET 4 3 portscan.log
preprocessor portscan2-ignorehosts:  24.167.76.32

but I still getting

[**] [100:1:1] spp_portscan: PORTSCAN DETECTED from 24.167.76.32
(THRESHOLD 4 connections exceeded in 0 seconds) [**]

So any ideas what I have missed ?

Regards






--
The secret to success is to start from scratch and keep on scratching.




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