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Lesson 10. Providing Network Services > Protecting Your Mac with the Mac OS X F...

Protecting Your Mac with the Mac OS X Firewall

Because other people can access your computer when it's on a network, you should protect it from unauthorized traffic. Mac OS X includes firewall software you can use to block unwanted network connections and prevent unauthorized network access to your computer. The firewall uses the BSD utility ipfw (IP Firewall) to block network traffic on specific IP ports.

The firewall included in Mac OS X is separate from network firewalls or network security devices that network administrators use to protect against attacks from outside the network, but it has the same function: it protects your computer from attacks or unwanted intrusion. If your computer is on a network that has a firewall, you should still use the Mac OS X firewall to protect against the possibility of attacks from other computers on the network.


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