What You Should Know Before You Buy an iMac
ipfirewall - Wikipedia ipfirewall or ipfw is a FreeBSD IP, stateful firewall, packet filter and traffic accounting facility. Its ruleset logic is similar to many other packet filters except IPFilter. ipfw is authored and maintained by FreeBSD volunteer staff members.Its syntax enables use of sophisticated filtering capabilities and thus enables users to satisfy advanced requirements. Setting Up a Firewall: Mac OS X 10.6.x and above This basic firewall closes off unused network service ports, but lets you create exceptions for specific programs running on your computer. To check your version of OS X, open the Apple menu (the blue apple icon in the upper left corner of the screen), and select About This Mac. Firewall on/off? - Apple Community May 03, 2011
Why is the imac firewall turned off? - Apple Community
How to Configure the Mac Firewall - dummies The Firewall preferences pane appears. Click the Turn On Firewall button to turn on your Mac’s firewall (if it isn’t already turned on). Click the Firewall Options button to display the firewall’s custom settings, as shown in this figure. The dialog that appears offers three check boxes. How to enable and disable Firewall on Mac
The Firewall preferences pane appears. Click the Turn On Firewall button to turn on your Mac’s firewall (if it isn’t already turned on). Click the Firewall Options button to display the firewall’s custom settings, as shown in this figure. The dialog that appears offers three check boxes.
How to Configure the Mac Firewall - dummies