I have a question about some applications that communicate with themselves (or with other modules that are part of the same installation and on the same machine) through network ports. So in other words the app sends data to a port on the machine that it resides on, and another part of the app listens on that port and picks up the data.
Examples of apps doing this include a Python editor, JGroups, etc
My question pertains to a situation where the machine also has a software firewall running on it.
The question is, are there any cases where this type of communication does not go through the firewall?
Thanks in advance,