How can I close a port (seen open on netstat)?

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I used netstat and I see some ports open that I want closed. How do I close them?

The computer is a Mac running OS X

edited Jul 24 '10 at 9:35

Chealion
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asked Jul 24 '10 at 6:27

Xofo

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you should ask this question in superuser – fardjad Jul 24 '10 at 6:29

netstat -lp will give you process/port – unknown Jul 24 '10 at 6:36

... did not work ... Mac OSX *** – Xofo Jul 24 '10 at 7:02

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brandonhutchinson.com/Port_to_PID_with_lsof.html, sial.org/howto/debug/unix/lsof – unknown Jul 24 '10 at 7:11

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migrated from stackoverflow.com Jul 24 '10 at 7:46

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1 Answer

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up vote 2 down vote

Try using

lsof | grep portnumber

to get the process that has it opened.

You could also use the -i option to let lsof do the filtering for a TCP port

lsof -i TCP:portnumber

edited Jul 24 '10 at 15:58

answered Jul 24 '10 at 15:47

epatel
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