It saves the file in a pcap format, that can be viewed by tcpdump command or an open-source GUI-based tool called Wireshark (Network Protocol Analyzer) that reads tcpdump pcap format files. tcpdump also gives us an option to save captured packets in a file for future analysis. It is available under most of the Linux/Unix-based operating systems. 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. Here, we are going to show you how to install tcpdump and then we discuss and cover some useful commands with their practical examples. ![]() This is our another ongoing series of packet sniffer tool called tcpdump. ![]() In our previous article, we have seen 20 Netstat Commands (netstat now replaced by ss command) to monitor or manage a Linux network.
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