How to check listening ports on MacOS
On macOS Big Sur and later, use this command:
sudo lsof -i -P | grep LISTEN
or to just see just IPv4:
sudo lsof -nP -i4TCP:$PORT | grep LISTEN
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On macOS Big Sur and later, use this command:
sudo lsof -i -P | grep LISTEN
or to just see just IPv4:
sudo lsof -nP -i4TCP:$PORT | grep LISTEN
