capture TLS/HTTPS traffic via tcpdump

only TLS traffic

tcpdump -ni eth0 "(tcp[((tcp[12] & 0xf0) >> 2)] = 0x16)"

TLS traffic with port

tcpdump -ni eth0 "tcp port 443 and (tcp[((tcp[12] & 0xf0) >> 2)] = 0x16)"

TLS traffic with host ip

tcpdump -ni eth0 "tcp host 10.10.10.10 and (tcp[((tcp[12] & 0xf0) >> 2)] = 0x16)"

Capture packets for wireshark

tcpdump -vvvv -A -i weave '((dst port 80) and (net 10.36.0.15))' -w app2.cap


sudo tcpdump -vvvv -A -i etho -w app2.cap

More : https://stackoverflow.com/questions/39624745/capture-only-ssl-handshake-with-tcpdump

https://www.wireshark.org/docs/wsug_html_chunked/AppToolstcpdump.html

Openport using NC:

nc 8888

Listen port:

nc localhost 8888

Send packet using bash:

echo -n "hello" >/dev/tcp/localhost/8888