Tcpdump Tutorial for Beginners | Kali Linux Tools
Tcpdump Tutorial for Beginners | Kali Linux Tools :- tcpdump is A Powerful Network Packet Analyzer which is used to capture or filter TCP/IP packets that are received or transferred over a network on a specific interface. Commands shown in this video are written below :-
1) Capture All Traffic:
$ sudo tcpdump -i eth0
Capture traffic on interface eth0 and display packet details in real-time.
2) Save Captured Traffic to a File:
$ sudo tcpdump -i eth0 -w capture.pcap
Capture traffic on eth0 and save it to a file named "capture.pcap" for further analysis.
3) Display Captured Traffic:
$ tcpdump -r capture.pcap
Read and display packet details from a previously captured file "capture.pcap".
4) Filter Traffic by Source IP:
$ tcpdump src 192.168.0.1
Capture packets originating from a specific source IP address, such as 192.168.0.1.
5) Filter Traffic by Destination IP:
$ tcpdump dst 192.168.0.1
Capture packets destined for a specific IP address, e.g., 192.168.0.1.
6) Filter Traffic by Port:
$ tcpdump port 80
Capture packets with a specific port number, like port 80 (HTTP).
7) Filter Traffic by Protocol:
$ tcpdump icmp
Capture packets using a specific network protocol, such as ICMP (ping).
8) Display Traffic in ASCII:
$ tcpdump -A
Display packet contents in ASCII format for better readability.
9) Display Traffic in Hexadecimal:
$ tcpdump -X
Show packet contents in hexadecimal and ASCII format.
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