I'm wondering what are the possible ways to block some port while it is in use by some other process?
Short story long: I've got an app(1) that communicates with another app(2) on one host/local machine through some port (7080). Periodically communication is being dropped or blocked or whatever, though processes are not suspended and their status report is OK. So I'm wondering how is it possible to perform such blocking and who can do it?