Snort mailing list archives

Re: Whitelisting


From: Jeremy Hoel <jthoel () gmail com>
Date: Thu, 7 Feb 2013 16:38:54 +0000

You could do a BPF filter to have snort ignore the traffic (The bpf
file is referenced in the command line options) , or you could
whitelist (threshold) certain alerts via source or destination (using
threshold.conf). You could also write pass rules for certain alerts,
changing the IP's to make sure that specific traffic doesn't alert
(copy the alert to local.rules, change alert to pass and change the IP
variables).

Lots of options.


On Thu, Feb 7, 2013 at 4:25 PM, Erik D. Sciortino <ESciortino () abim org> wrote:
Good Morning All,



I want to start tuning my Snort install so I can cut down on some of the
chatter currently being seen in the logs. I would like to use whitelisting
to help eliminate some of the legitimate server traffic chatter that I am
seeing in Snort. Can I create a Whitelist rule for a specific
system-to-system interaction (i.e. the IP traffic going between my BlueCoat
ProxySG and ProxyAV) or do whitelist rules only work based on Source IP
(i.e. I could whitelist the IP address of my ProxySG only). If it is
possible to create a whitelist rule for system-to-system interaction, would
it be possible for someone to provide me with some sample nomenclature that
I could follow?



Thanks in advance!



Erik



Erik D. Sciortino, CISSP, CISM, CIPP

Director of Data Security



American Board of Internal Medicine

510 Walnut Street | Suite 1700 | Philadelphia, PA 19106

P: 215.446.3525 | C: 215.847.2207 | E: esciortino () abim org

www.ABIM.org

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and get the hardware for free! Learn more.
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