How can I see dumps of wholе HTTP packets in FreeBSD?

Question

I need to see whole HTTP packets sent and recieved by an application for debugging purposes. How can this be done in command-line?

Answer 1

You can use a tcpdump command like:

$ sudo tcpdump -i <interface> -s 1518 -XX -vv -n "tcp port 80"

You customize the command according to your needs. You can add -w filename.pcap to save the dump to a file. Then, you can read the dump file using -r filename.pcap.