So let's have a look at the network sniffing methods first, we're going to learn how to listen to the
network traffic and how to use some tools such as TCP Dump and Wireshark.
During the penetration test, we listen to the network traffic for many good reasons, first of all,
it's possible to obtain the clear text, critical information such as usernames, passwords, instant
messages, emails and all that.
We can check to see if the scans were correctly.
And some controls can be seen by listening to the network interface, such as if the scan parameters
are set correctly, packets are properly exported from the network interface and responses are received.
Listening to the traffic, using passive scan methods, we can collect information about IP addresses,
services running on server systems and protocols and technologies used in network infrastructures,
et cetera, et cetera.