I have a server with a lot of processes that do use TCP for inter-process communication (micro-service architecture).
I am trying to get an overview which service/process communicates with what other services, therefore I want to build a network diagram, e.g. based on netstat output (other standard Linux networking tools would also be ok as data source).
Is there a free/open source script or tool that can build a network diagram showing the processes and the communication paths?
I am aware that such a diagram may be incomplete as netstat only captures a certain point in time, but that would be acceptable in this scenario. root access is available on the used server.