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IPFilter (commonly referred to as ipf) is an open source software package that provides firewall services and network address translation (NAT) for many UNIX-like operating systems. The author and software maintainer is Darren Reed. IPFilter supports both IPv4 and IPv6 protocols, and is a stateful firewall. IPFilter is delivered with FreeBSD, NetBSD, Solaris 10 & 11 and illumos. It used to be a part of OpenBSD, but it was removed in May 2001 due to problems with its license,〔() OpenBSD commit message: Remove ipf.〕 after negotiations between Theo de Raadt and Reed broke down. IPFilter can be installed as a runtime-loadable kernel module or directly incorporated into the operating system kernel, depending on the specifics of each kernel and user preferences. The software's documentation recommends the module approach, if possible. Operating systems that are known to support IPFilter include the following: *AIX 5.3 ML05 *BSD/OS-1.1 – 4 *DragonFlyBSD 1.0–2.10 *FreeBSD 2.0.0–11.0 *illumos *IRIX 6.2, 6.5 *HP-UX 11.00 *Linux kernel 2.4–2.6 *NetBSD 1.0–6.0 *OpenBSD 2.0–2.9 (no support since May 2001) *OpenSolaris *QNX 6 port *Solaris 2.3–11 *SunOS 4.1.3–4.1.4 *Tru64 5.1a *UnixWare 7.1.4 (MP2 and above) ==See also== * iptables * ipfw * NPF (firewall) * PF (firewall) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ipfilter」の詳細全文を読む スポンサード リンク
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