‫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.