Snoop is a command-line utility found on most UNIX systems. It is used for taking down a copy of all or some of the data coming in or out of some or all of the network interfaces on the machine in question.
Snoop is a command-line utility found on most UNIX systems. It is used for taking down a copy of all or some of the data coming in or out of some or all of the network interfaces on the machine in question.
snoop man page
https://docs.oracle.com/cd/E19253-01/816-5166/snoop-1m/index.html