The box is installed with Suse 10.0 two network interfaces.
One nic is on the internal network and not capturing any traffic
(HOME_NET = 192.168.0.0).
The other nic has no IP and is capturing the data in the DMZ
(EXTERNAL_NET !HOME_NET). The port on the public switch has port
forwarding enabled. The only traffic this interface captures is publicly
addressable.
Currently I'm using the default snort.conf with added bleeding snort
rules. I will keep reading.
Thanks
AD
-----Original Message-----
From: Nigel Houghton [mailto:nigel@sourcefire.com]
Sent: Wednesday, April 26, 2006 2:58 PM
To: Arthur DiSegna
Cc: snort-users@lists.sourceforge.net
Subject: Re: Address on my network generating many alerts
On 0, Arthur DiSegna <adisegna@authentium.com> wrote:
Hello,
I just installed SNORT for the first time and have noticed one of my
servers generating a lot of traffic. Most of it is legitimate web
traffic. How can I exclude the normal traffic while maintaining
intrusion checks...
Start by tuning your setup, set your HOME_NET and EXTERNAL_NET variables
in your snort.conf and start from there. The HOME_NET is normally your
internal address space and the EXTERNAL_NET could be !$HOME_NET. The
default snort.conf is generously commented.
Then start looking at other variables in there and the preprocessor
options for tuning. You might also want to look at which rule groups are
enabled and disabled too.
The manual[0] is online and there are many documents in the doc
directory of the source tarball.
[0] http://www.snort.org/docs/snort_htmanuals/htmanual_2.4/rc1/
+--------------------------------------------------------------------+
Nigel Houghton Research Engineer Sourcefire Inc.
Vulnerability Research Team
There is no theory of evolution, just a list
of creatures Vin Diesel allows to live.
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