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here are the steps of the process that I'm am doing: <br />
<br />
1. open terminal<br />
2. type in the command : sudo ipfw add allow tcp from any 500 to any 500<br />
3. use the network utility to scan the ports<br />
<br />
unfortunately the port does not show up in the port scan<br />
<br />
what am I doing wrong/missing?<br />
<br />
I'm very new to this OS.
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here are the steps of the process that I'm am doing: 

1. open terminal
2. type in the command : sudo ipfw add allow tcp from any 500 to any 500
3. use the network utility to scan the ports

unfortunately the port does not show up in the port scan

what am I doing wrong/missing?

I'm very new to this OS.

Opening a port is not showing up on the port scan

Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.

Mac OS X

Apple devices including Macs, iPhones, iPods and iPad support standard wired and wireless networking technologies, but they also utilize custom applications and some special techniques for networking with each other and with non-Apple devices. Apple manufacturers the AirPort line of wireless networking products, and has its own networking protocols, AppleTalk and AFP (Apple Filing Protocol).