MacOS – How to open a specific port in Firewall OS X 10.9.4

firewallmacos

How do I open a specific port in the firewall?
I can not use the "allow connections from application" as I want to open the port for Jenkins, that is not on the list…

Best Answer

Apple's OS X Mavericks contains three firewalls. First of all, the Application Level Firewall which can be configured using the system settings. But there is also ipfw, a packet filtering firewall like netfilter/iptables on GNU/Linux and pf (FreeBSD/OpenBSD).

You can either configure ipfw using the command line, or using a graphical front-end like the free/libre WaterRoof.

You could start with an ipfw command like:

sudo ipfw add 31010 allow tcp from any to any dst-port 8080

Related Solutions

Settings for Firewall and AirPort Extreme Router to Open a Port

Something's wrong. If you've only got the Apple device between yourself and the internet - you've verified your external IP, you've lowered your machine's firewall, and you've DMZ'd your internal IP (which you've verified is correct...) - then the only way a connection can be halted is through another piece of software running on your machine.

If you go through all of those steps, you should be completely open to the internet.

How to open a port (not application) in the OS X 10.6 firewall

Worked for me.

I wanted to open traffic on port 70, so I entered the following:

sudo ipfw add 7000 allow tcp from any to any dst-port 70

The response from the command-prompt was:

07000 allow tcp from any to any dst-port 70

Yes, the 0 was automatically added to the rule #, so it is worth noting that any rule ID < 10,000 will be prefixed by one or more zeroes.

Best Answer

Related Solutions

Settings for Firewall and AirPort Extreme Router to Open a Port

How to open a port (not application) in the OS X 10.6 firewall

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