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· One min read
Hreniuc Cristian-Alexandru

On the server side:

tcpdump -n -i interface -n "src host client-host.com and dst port server-port"

You can get the client host using lsof:

lsof -itcp -a -p server_pid

This will print all active tcp connections to the server app with the specific pid.

On the client side:

tcpdump -n -i interface -n "dst host server-host.com and dst port server-port"

interface can be taken via ip addr