24 relations: BSD licenses, DragonFly BSD, Firewall (computing), FreeBSD, HP-UX, Illumos, Ipfirewall, Iptables, Kernel (operating system), Linux, Loadable kernel module, NetBSD, Network address translation, NPF (firewall), Open-source software, OpenBSD, OpenIndiana, Operating system, PF (firewall), QNX, Solaris (operating system), Stateful firewall, Theo de Raadt, Unix-like.
BSD licenses
BSD licenses are a family of permissive free software licenses, imposing minimal restrictions on the use and redistribution of covered software.
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DragonFly BSD
DragonFly BSD is a free and open source Unix-like operating system created as a fork of FreeBSD 4.8.
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Firewall (computing)
In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
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FreeBSD
FreeBSD is a free and open-source Unix-like operating system descended from Research Unix via the Berkeley Software Distribution (BSD).
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HP-UX
HP-UX (from "Hewlett Packard Unix") is Hewlett Packard Enterprise's proprietary implementation of the Unix operating system, based on UNIX System V (initially System III) and first released in 1984.
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Illumos
illumos is a free and open-source Unix operating system.
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Ipfirewall
ipfirewall or ipfw is a FreeBSD IP, stateful firewall, packet filter and traffic accounting facility.
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Iptables
iptables is a user-space utility program that allows a system administrator to configure the tables provided by the Linux kernel firewall (implemented as different Netfilter modules) and the chains and rules it stores.
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Kernel (operating system)
The kernel is a computer program that is the core of a computer's operating system, with complete control over everything in the system.
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Linux
Linux is a family of free and open-source software operating systems built around the Linux kernel.
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Loadable kernel module
In computing, a loadable kernel module (LKM) is an object file that contains code to extend the running kernel, or so-called base kernel, of an operating system.
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NetBSD
NetBSD is a free and open source Unix-like operating system that descends from Berkeley Software Distribution (BSD), a Research Unix derivative developed at the University of California, Berkeley.
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Network address translation
Network address translation (NAT) is a method of remapping one IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device.
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NPF (firewall)
NPF is a BSD licensed stateful packet filter, a central piece of software for firewalling.
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Open-source software
Open-source software (OSS) is a type of computer software whose source code is released under a license in which the copyright holder grants users the rights to study, change, and distribute the software to anyone and for any purpose.
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OpenBSD
OpenBSD is a free and open-source Unix-like computer operating system descended from Berkeley Software Distribution (BSD), a Research Unix derivative developed at the University of California, Berkeley.
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OpenIndiana
OpenIndiana is a free and open-source, Unix operating system derived from OpenSolaris and based on illumos.
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Operating system
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
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PF (firewall)
PF (Packet Filter, also written pf) is a BSD licensed stateful packet filter, a central piece of software for firewalling.
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QNX
QNX is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market.
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Solaris (operating system)
Solaris is a Unix operating system originally developed by Sun Microsystems.
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Stateful firewall
In computing, a stateful firewall is a network firewall that tracks the operating state and characteristics of network connections traversing it.
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Theo de Raadt
Theo de Raadt (born May 19, 1968) is a software engineer who lives in Calgary, Alberta, Canada.
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Unix-like
A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification.
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References
[1] https://en.wikipedia.org/wiki/IPFilter