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OS X 10.6's firewall is application-specific instead of port-specific, which is handy in some ways, but I do need to open a single port. Anyone know how to do that without resorting to third-party software like WaterRoof?
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OS X 10.6's firewall is application-specific instead of port-specific, which is handy in some ways, but I do need to open a single port. Anyone know how to do that without resorting to third-party software like WaterRoof?

How to open a specific port in OS X 10.6 firewall?

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).

Apple Networking

Software firewalls, also known as host-based firewalls, provide a layer of software on one host that controls network traffic in and out of that single machine. Most operating systems now include firewall software, but many available software firewalls include central distribution, antivirus systems and disaster recovery.