ipfw was deprecated in OS X 10.7 Lion and removed in OS X 10.10 Yosemite. ipfw is the same packet filter used by many Linux distributions and had its origins in FreeBSD. Historically, the ipfw packet filter (and its replacement ipfw2 introduced in OS X 10.4 Tiger and also called ipfw) had been part of OS X since before it was OS X. It can also be configured to enable IP-specific filtering. The Application Firewall was originally called the Application Layer (or Level) Firewall, or ALF.Īlthough the Application Firewall user interface only supports filtering of incoming packets, the underlying packet filter can be configured to filter outgoing packets. This article describes how to turn it on and configure it. The port-oriented Application Firewall found in Mac OS X (versions 10.2 Jaguar through 10.4 Tiger) was also IP-agnostic and turned off by default.
This Application Firewall is based on the TrustedBSD MAC Firewall in FreeBSD. It requires no configuration changes to support IP version 6 ( IPv6), and filtering rules apply equally to IPv4 and IPv6.
The Application Firewall in Apple macOS (all versions), OS X (all versions) and Mac OS X (versions 10.5 Leopard and later) is Internet Protocol (IP)-agnostic.
0 kommentar(er)
