I have a ELK stack server which receives metrics from several servers, but one of them has a specific application that listens on port TCP/8443. Im aware of the system module of Metricbeats, which supports a metricset called Socket. This module has a field called system.socket.summary.tcp.all.established , that tells me the amount of established TCP connections of the server, but it does not orders those connections by port, just shows me the whole number. I would like to get the amount of TCP connections established against port 8443 TCP on my server, but I do not see anyway to achieve that.
Im not a native english speaker, sorry for my gramatical errors.