In order to see everything on the network, you need to have one of the
following:
1. A true hub. But, you'll only see traffic that passes through the hub.
2. A switch that will let you configure a monitor port, have the port your
snort box is connected to configured to monitor all the other ports. How you
do this depends on the switch.
3. Use a network tap. Place the tap were it will pickup the traffic you
want to see, possibly between your firewall and inside router/switch, that way
you would see everything in and out of your network.
4. Run snort in in-line mode, place the snort box in a location similar to
the network tap.
You would really need to give more information on your network to get a more
detailed answer.
As to detecting web activity, snort does have some rules for detect web
traffic. But, it sound from you question that it might be better to try to get
this info from you Firewall logs. Snort isn't really a very good web usage
monitoring tool.
Barry
stuff@trackingsolutions.ca wrote:
I am new to snort and am starting to test things out. I am able to capture
email content from the machine running snort, but I would also like to
capture email being sent on the entire network. Is there a way to do this?
Also is there a way to capture visited websites for the entire network to a
file stating date, time, url, ipaddress?
Thank you very much.
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