Identifying which processes are using network ports on a Mac

Steve Neal Linux Leave a Comment

Typically I’d use netstat’s -o flag to identify the process ID when listing networking activity from a Linux/Unix machine. Unfortunately this option is not available with netstat on ┬áMac OS X. I recently has a rogue process (I suspected a virus) on my Mac that was creating thousands of connections out to hosting providers. Luckily I found this fix, which …