btaz

I had a need to identify what process ID (PID) on my MacBook running OSX that had a specific IP address and port open so that I could kill it. It took me a while to figure this out but eventually I found something that worked.

lsof -i

This will show you

COMMAND     PID     USER        FD   TYPE  DEVICE     SIZE/OFF  NODE  NAME
Microsoft   280     someuser    15u  IPv4  0x8862e64       0t0  TCP   *:3546 (LISTEN)
...

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