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# Prints the network interfaces that tcpdump can sniff
sudo tcpdump -D

# Captures all UDP packets which have as destination
sudo tcpdump -i <interface> udp and dst 

# Records the HTTP/S traffic to a file
sudo tcpdump -i <interface> -w output.dump '(tcp port 80) or (tcp port 443)'

# Displays the output.dump file created in the previous example on the screen in a formatted form.
sudo tcpdump -r output.dump