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Start the Built-in Firewall in Mac OS X (Tutorial)

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Step-by-Step Instructions to Start the Built-in Firewall in Mac OS X

  1. Pull down the Apple icon in the top left corner of your Desktop
  2. Select System Preferences from the menu.
  3. Under the category Internet & Network click on the Sharing icon.
  4. Make sure the Firewall tab is selected.
  5. Click the Start button to enable the built-in firewall in your operating system.

Developed by the Internet Education Foundation as part of its GetNetWise program.