https://portisapp.com/blog/ Ports, processes and macOS, tested on a Mac. en https://portisapp.com/blog/port-5000-7000-airplay-receiver-mac/ https://portisapp.com/blog/port-5000-7000-airplay-receiver-mac/ Thu, 12 Nov 2026 08:00:00 +0000 Port 5000 in use on your Mac? It's ControlCenter running AirPlay Receiver. Confirm it with lsof, turn it off in System Settings, or run Flask on 5001. https://portisapp.com/blog/netstat-macos-27/ https://portisapp.com/blog/netstat-macos-27/ Thu, 12 Nov 2026 08:00:00 +0000 On macOS 27, netstat -an can list no TCP or UDP sockets at all. Why that happens, and the lsof and nettop commands that still show every listening port. https://portisapp.com/blog/lsof-ports-cheat-sheet-mac/ https://portisapp.com/blog/lsof-ports-cheat-sheet-mac/ Thu, 12 Nov 2026 08:00:00 +0000 An lsof cheat sheet for Mac: list listening ports, find the process on a port, get its PID, folder and command line. Every command tested on macOS 27.2. https://portisapp.com/blog/kill-process-on-port-mac/ https://portisapp.com/blog/kill-process-on-port-mac/ Thu, 12 Nov 2026 08:00:00 +0000 Kill the process on a port on a Mac with lsof and kill: SIGTERM first, kill -9 only when needed, and what to do when launchd, pm2 or Docker restarts it. https://portisapp.com/blog/apple-processes-listening-on-mac/ https://portisapp.com/blog/apple-processes-listening-on-mac/ Thu, 12 Nov 2026 08:00:00 +0000 What is rapportd, why ControlCenter holds ports 5000 and 7000, and what mDNSResponder does: each Apple process listening on your Mac, its port and its switch.