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Re: Assessing a machine with 2 NICs
From: Andres Riancho <andres.riancho () gmail com>
Date: Sun, 11 Sep 2005 18:31:47 -0300

barcajax () gmail com wrote:

Lets say we have a machine running critical business applications connected to the enterprise network on 2 NICs. From an assessment/audit point of view, is it necessary to scan both NICs using assessment tools like NMap and Nessus?
Yes, of course you have to. Some daemons listen only on the specified IP's/interfaces while others listen on "" ( all ). If you scan only eth0 and there is a daemon that only listens on eth1's IP you are missing services that could lead to a security breach.

Will both scan results produce the same findings (as in same ports and services open)?
No, read above.

Does the OS or applications influence the detection of ports/services on different NICs on the same physical machine?
OS wont make a diference here, just application configuration.

Andrés Riancho

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