tcpdump capture and reading in vi

on August 2 | in LAMP, Linux, SCRIPTING | by Noman | with No Comments

This howto will explain you how to capture tcpdump in pcap format and save in log file and then able to read it.

# tcpdump -i eth0 -s0 -w /tmp/capture.pcap

Please find below conversion command for Human readable format for capture.cap file

# tcpdump -qns 0 -X -r /tmp/capture.pcap > /tmp/readable.txt

Now you can open readable.txt to see the log file.

# vi /tmp/readable.txt

tcpdump on specific port.

# tcpdump -ni eth0 port 80

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