FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -tcpdump is a most powerful and widely used command-line packets sniffer or package analyzer tool which is used to capture or filter TCP/IP packets that are received or transferred over a network on a specific interface.

Detailed explanation-2: -Tcpdump and Wireshark are examples of packet sniffers. Tcpdump provides a CLI packet sniffer, and Wireshark provides a feature-rich GUI for sniffing and analyzing packets. By default, tcpdump operates in promiscuous mode. This simply means that all packets reaching a host will be sent to tcpdump for inspection.

Detailed explanation-3: -Tcpdump is a command line utility that allows you to capture and analyze network traffic going through your system. It is often used to help troubleshoot network issues, as well as a security tool. A powerful and versatile tool that includes many options and filters, tcpdump can be used in a variety of cases.

Detailed explanation-4: -The tcpdump command prints the headers of packets on a network interface that match the boolean expression. You can run the command with the-w flag to save the packet data in a file for further analysis.