1.8. Firewall

The Mac OS X firewall (see Figure 1-9) is a software-based application firewall built into the operating system designed to block unwanted network traffic. It is disabled by default, and unless you know that enabling it causes incompatibility issues with other operating systems or file systems, you should enable it.

NOTE

We discuss the firewall in further detail in Chapter 11.

Figure 1-9. Enabling the firewall in the Security preference pane

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