[ILUG] port scanning.. continued.
Donncha O Caoimh
donncha.ocaoimh at tradesignals.com
Tue Mar 14 13:45:03 GMT 2000
It's a policy. There are various ways of responding, the most
"effective" of which is to use ipchains or ipfwadm in Linux to filter
out the traffic from the attacking host. That way the attacker only sees
a "black hole" when they try and contact the victim machine.
One side effect of any of the "active" responses is a potential denial
of service for legit. users though.
"John P. Looney" wrote:
> On Tue, Mar 14, 2000 at 11:12:12AM +0000, Donncha O Caoimh mentioned:
> > Thanks Sascha,
> > Even the ICMP packets are denied because port sentry filters ALL traffic
> > from the offending host..
> Is that a bug in port sentry, or a policy ?
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