Linked by Thom Holwerda on Fri 20th Mar 2009 22:01 UTC, submitted by diegocg
Linux The Netfilter development team's Patrick McHardy has released an alpha version of nftables, a new firewall implementation for the Linux kernel, with a user space tool for controlling the firewall. nftables introduces a fundamental distinction between the user space defined rules and network objects in the kernel: the kernel component works with generic data such as IP addresses, ports and protocols and provides some generic operations for comparing the values of a packet with constants or for discarding a packet.
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BSDfan
Member since:
2007-03-14

There is an open source/free personal firewall for Windows though, Core Force, suppositly it actually uses (some of) that OpenBSD PF-code.

It's rumoured.. but nobody knows for sure, if they did use a portion of the pf code, it's probably just the rule parsing.

Windows did incorporate elements of BSD sockets into their OS, the kernel side of things is quite different.

:) -- smile, see.. I can be nice.

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