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packet filterFirewall

NPF Description
NPF is a BSD licensed stateful packet filter, a central piece of software for firewalling. It is comparable to iptables, ipfw, ipfilter and PF. NPF is developed on NetBSD.
A list below shows NPF alternatives which were either selected by us or voted for by users. You can filter this list by tags and platforms

NPF Alternatives

  • OpenSMTPD by The OpenBSD Project

    OpenSMTPD is a Unix system daemon implementing the Simple Mail Transfer Protocol to deliver messages on a local machine or to relay them to other SMTP servers. It was first released on 17 March 2013...

    Latest version of OpenSMTPD is 6.0.2 and it was released on 2016-10-13.

    Tags: Message Transfer Agents, Bsd Software, Openbsd, Email Server Software For Linux, Openbsd Software Using The Isc License

    AICCU (Automatic IPv6 Connectivity Client Utility) is a popular cross-platform utility for automatically configuring an IPv6 tunnel. It is free software available under a BSD license. The utility is...

    Tags: Ipv6, Macos Internet Software, Unix Internet Software, Windows Internet Software, Solaris Software, Bsd Software, Tunneling Protocols, Free Software Programmed In C
  • Systrace

    Systrace is a computer security utility which limits an application's access to the system by enforcing access policies for system calls. This can mitigate the effects of buffer overflows and other...

    Latest version of Systrace is 1.6g and it was released on 2009-03-15.

    Tags: Bsd Software, Openbsd, Unix Securityrelated Software
  • Prime95 by George Woltman

    Prime95 is the freeware application written by George Woltman that is used by GIMPS, a distributed computing project dedicated to finding new Mersenne prime numbers. More specifically, Prime95...

    Latest version of Prime95 is 28.10 and it was released on 2016-10-30.

    Tags: Distributed Computing Projects, Primality Tests, Computer Benchmarks, Science Software For Macos, Science Software For Windows, Science Software For Linux, Bsd Software, Mathematical Software
  • OpenBGPD by The OpenBSD Project

    OpenBGPD is a server software program that allows general purpose computers to be used as routers. It is a Unix system daemon that provides a free, open-source implementation of the Border Gateway...

    Latest version of OpenBGPD is 6.0 and it was released on 2016-09-01.

    Tags: Bsd Software, Openbsd, Free Routing Software, Openbsd Software Using The Isc License
  • iMule by iMule Team

    iMule (invisible Mule) is a free open source anonymous P2P file sharing software which connects through the anonymous I2P network and the Kad...

    Tags: Anonymous File Sharing Networks, Bsd Software, Free File Sharing Software, Free Software Programmed In C, Edonkey Clients For Linux, Macos File Sharing Software, Windows File Sharing Software, File Sharing Software That Uses Wxwidgets, I2p
  • TCP Wrapper by Wietse Venema

    TCP Wrapper is a host-based networking ACL system, used to filter network access to Internet Protocol servers on (Unix-like) operating systems such as Linux or BSD. It allows host or subnetwork IP...

    Tags: Unix Networkrelated Software, Bsd Software, Free Security Software, Transmission Control Protocol, Internet Protocol Based Network Software
  • ipf by Darren Reed

    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...

    Latest version of ipf is 5.1.1 and it was released on 2012-01-30.

    Tags: Internet Protocol Based Network Software, Firewall Software, Bsd Software, Computer Network Security
  • Hugin by Pablo d'Angelo

    Hugin is a cross-platform open source panorama photo stitching and HDR merging program developed by Pablo d'Angelo and others. It is a GUI front-end for Helmut Dersch's Panorama Tools and Andrew...

    Tags: 2003 Software, Bsd Software, Free Software, Free Graphics Software, Free Panorama Software, Free Photo Software, Free Photo Stitching Software, Free Software Programmed In C, Photo Software For Linux, Software That Uses Wxwidgets
  • mksvir by ArcaBit Sp. z o.o.

    mks_vir (formerly: MkS_Vir) - Polish antivirus program, created by Marek Sell in 1987. The original reason for creation of this software was that the solutions existing on the market these times...

    Latest version of mks_vir is v13.11.3201 and it was released on 2013-11-05.

    Tags: Antivirus Software, Discontinued Software, 1987 Software, Freeware, Dos Software, Windows Security Software, Unix Security Software, Solaris Software, Bsd Software
  • ScummVM by ScummVM Team

    Script Creation Utility for Maniac Mansion Virtual Machine (ScummVM) is a set of game engine recreations. Originally designed to play LucasArts adventure games that use the SCUMM system, it also...

    Latest version of ScummVM is 1.9.0 and it was released on 2016-10-17.

    Tags: 2001 Software, Adventure Game Engines, Amiga Software, Amigaos 4 Software, Beos Software, Bsd Software, Crossplatform Software, Dreamcast Emulation Software, Free And Opensource Android Software, Free Software, Free Software Programmed In C, Free Software Projects, Free Virtualization Software, Linux Software, Macos Games, Morphos Software, Os2 Software, Palm Os Software, Pocket Pc Software, Solaris Software, Unix Software, Windows Games
  • sndio by OpenBSD project

    sndio is the software layer of the OpenBSD operating system that manages the use of sound cards and MIDI ports. It provides an optional sound server and a documented application programming...

    Tags: Articles Created Via The Article Wizard, Bsd Software, Openbsd, Application Programming Interfaces, 2008 Software, Audio Libraries, Free Audio Software, Openbsd Software Using The Isc License
  • ZoneAlarm Z100G by Check Point

    ZoneAlarm Secure Wireless Router Z100G is a discontinued Unified Threat Management security router for the home and SOHO market. The Z100G was developed by SofaWare Technologies, a Check Point...

    Tags: Computer Network Security, Firewall Software
  • XWrt

    X-Wrt is a set of packages and patches to provide a web interface for the Linux distribution OpenWrt. It is based on haserl and has nothing to do with the X Window System. It allows web based...

    Latest version of X-Wrt is Kamikaze 8.09.02 and it was released on 2010-01-26.

    Tags: Custom Firmware, Firewall Software, Free Routing Software, Free Security Software, Free System Software, Gatewayroutingfirewall Distribution, Linux Security Software
  • Shorewall by Thomas M. Eastep

    Shorewall is an open source firewall tool for Linux that builds upon the Netfilter (iptables/ipchains) system built into the Linux kernel, making it easier to manage more complex configuration...

    Latest version of Shorewall is and it was released on 2017-03-25.

    Tags: Firewall Software
  • Norton Personal Firewall by Symantec

    Norton Personal Firewall, developed by Symantec, is a discontinued personal firewall with ad blocking, program control and privacy protection capabilities. Norton Personal Firewall program control...

    Tags: Firewall Software, Symantec Software, Proprietary Software
  • nftables by Pablo Neira Ayuso,Florian Westphal

    nftables is a subsystem of the Linux kernel providing filtering and classification of network packets/datagrams/frames. It has been available since Linux kernel 3.13 released on 19 January...

    Latest version of nftables is 0.7 and it was released on 2016-12-20.

    Tags: Firewall Software, Linux Security Software, Linux Kernel Features
  • NetBarrier X4 by Intego

    Netbarrier X4 is a discontinued version of the Intego Netbarrier line of its firewall for OS X. It features a cookie cleaner, a browser history cleaner, internet traffic statistic, an Internet...

    Latest version of NetBarrier X4 is 10.4.5 and it was released on 2007.

    Tags: Firewall Software
  • Little Snitch by Objective Development Software GmbH

    Little Snitch is a host-based application firewall for macOS. It can be used to monitor applications, preventing or permitting them to connect to attached networks through advanced rules. It is...

    Latest version of Little Snitch is 4.0 and it was released on July 5, 2017.

    Tags: Firewall Software
  • ipchains by Rusty Russell

    Linux IP Firewalling Chains, normally called ipchains, is free software to control the packet filter or firewall capabilities in the 2.2 series of Linux kernels. It superseded ipfwadm, but was...

    Latest version of ipchains is 1.3.10 and it was released on 2000-10-06.

    Tags: Discontinued Software, Firewall Software, Free Networkrelated Software, Free Security Software, Free Software Programmed In C, Linux Kernel Features, Linux Security Software
  • Firestarter by Firestarter developers

    Firestarter is a personal firewall tool that uses the Netfilter (iptables/ipchains) system built into the Linux kernel. It has the ability to control both inbound and outbound connections....

    Tags: Firewall Software, Software That Uses Gtk, Linux Security Software, Discontinued Software
  • FireHOL by Costa Tsaousis

    FireHOL is a shell script designed as a wrapper for iptables written to ease the customization of the Linux kernel's firewall netfilter. FireHOL does not have graphical user interface, but is...

    Latest version of FireHOL is [ v2.0.3] and it was released on 2015-04-26.

    Tags: Firewall Software, Free Security Software
  • ModSecurity

    ModSecurity, sometimes called Modsec, is a popular url= Server]url= traffic logging * ] Web application firewall (WAF). Originally designed as a module for the ], it has evolved to provide an array...

    Latest version of ModSecurity is 2.9.1 and it was released on 2016-03-09.

    Tags: Free Web Server Software, Articles With Underscores In The Title, Firewall Software
  • iptables by Netfilter Core Team

    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...

    Latest version of iptables is 1.6.1 and it was released on 2017-01-27.

    Tags: Commandline Software, Firewall Software, Linux Security Software, Linux Kernel Features, Linuxonly Software
  • MoBlock

    MoBlock is free software for blocking connections to and from a specified range of hosts. Moblock is an IP address filtering program for Linux that is similar to PeerGuardian for Microsoft Windows....

    Latest version of MoBlock is 0.9 and it was released on october 2007.

    Tags: Firewall Software, Internet Privacy Software
  • Windows Live OneCare by Microsoft

    Windows Live OneCare (previously Windows OneCare Live, codenamed A1) was a computer security and performance enhancement service developed by Microsoft for Windows. A core technology of OneCare was...

    Latest version of Windows Live OneCare is 2.5.2900.30 and it was released on 2010-03-06.

    Tags: Windows Live, Antivirus Software, Firewall Software, Backup Software, Spyware Removal, 2006 Software
  • Symantec Endpoint Protection by Symantec Corporation

    Symantec Endpoint Protection, developed by Symantec, is a security software suite, which consists of anti-malware, intrusion prevention and firewall features for servers and desktops. It has the...

    Latest version of Symantec Endpoint Protection is 14 MP2 (Build 2415) and it was released on 2017-06-02.

    Tags: Symantec Software, Antivirus Software, Firewall Software, Proprietary Software, Windows Security Software, Macos Security Software, Linux Security Software
  • Comodo Internet Security by Comodo Group

    Comodo Internet Security (CIS), developed and distributed by Comodo Group, is a freemium Internet security suite that includes an antivirus program, personal firewall, sandbox and a host-based...

    Tags: Firewall Software, Antivirus Software, Comodo Group
  • ZoneAlarm by CheckPoint Software Technologies LTD.

    ZoneAlarm is an internet security software company that provides consumer antivirus and firewall products. ZoneAlarm was developed by Zone Labs, which was acquired in March 2004 by Check Point....

    Tags: Firewall Software, Antivirus Software, Windowsonly Shareware, Windowsonly Freeware, 2000 Software, Windows Security Software
  • Trend Micro Internet Security by Trend Micro

    Trend Micro Internet Security (known as PC-cillin Internet Security in Australia and Virus Buster in Japan) is an antivirus and online security program developed by Trend Micro for the consumer...

    Latest version of Trend Micro Internet Security is Internet Security 2015 and it was released on 2014-09-16.

    Tags: Antivirus Software, Firewall Software, Computer Security Software
  • Online Armor by Emsisoft Ltd, Tall Emu Pty Ltd

    Online Armor Personal Firewall is a firewall originally developed by Australian company Tall Emu, until the program was sold to Emsi Software GmbH (now Emsisoft Ltd). The program provides protection...

    Latest version of Online Armor is and it was released on 2013-10-15.

    Tags: Firewall Software, Antivirus Software, Spyware Removal
  • Chicken by Symantec Corporation

    Norton 360, developed by Symantec, was an “all-in-one” security suite that combined online protection with performance tuning. What distinguished this suite from Norton Internet Security is the...

    Tags: Antivirus Software, Firewall Software, Backup Software, Symantec Software
  • Kaspersky Internet Security by Kaspersky Lab

    Kaspersky Internet Security (often abbreviated to KIS) is an internet security suite developed by Kaspersky Lab compatible with Microsoft Windows and Mac OS X. KIS offers protection from malware, as...

    Tags: 2006 Software, Antivirus Software, Firewall Software, Windowsonly Shareware
  • Avira Internet Security

    Avira Operations GmbH & Co. KG is a German multinational security software company that provides antivirus software, Internet Security, Privacy, Identity and Performance tools for computers,...

    Tags: Antivirus Software, Freeware, Companies Established In 1986, Computer Security Software, Computer Security Software Companies, Software Companies Of Germany, Windows Security Software, Linux Security Software, Macos Security Software, Android Software, 1986 Establishments In West Germany, Firewall Software, German Brands
  • firewalld by Thomas Woerner, Red Hat, Inc.

    firewalld is a firewall management tool for Linux operating systems. It provides firewall features by acting as a front-end for the iptables packet filtering system provided by the Linux kernel. The...

    Latest version of firewalld is and it was released on 2017-06-06.

    Tags: Firewall Software, Linux Security Software, Commandline Software, Linux Kernel Features, Linuxonly Software
  • Microsoft Forefront Threat Management Gateway 2010 by Microsoft

    Microsoft Forefront Threat Management Gateway (Forefront TMG), formerly known as Microsoft Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program,...

    Latest version of Microsoft Forefront Threat Management Gateway 2010 is 2010 and it was released on 2011-10-10.

    Tags: Windows Server System, Firewall Software, Computer Security Software, Proxy Servers, 1997 Software, Contentcontrol Software
  • Novell BorderManager by Novell, Inc.

    BorderManager is a multi purpose network security application developed by Novell, Inc. BorderManager is designed as a proxy server, firewall, and VPN access point. Novell has announced that...

    Latest version of Novell BorderManager is 3.9 SP2 and it was released on 2009-02-19.

    Tags: 1997 Software, Firewall Software, Novell Software
  • Linux

    Netfilter is a framework provided by the Linux kernel that allows various networking-related operations to be implemented in the form of customized handlers. Netfilter offers various functions and...

    Tags: Firewall Software, Free Networkrelated Software, Free Security Software, Linux Kernel Features
  • Outpost Firewall Pro by Agnitum

    Outpost Firewall Pro is a discontinued personal firewall developed by Agnitum (founded in 1999 in St. Petersburg,...

    Latest version of Outpost Firewall Pro is 9.3 (4934.708.2079) and it was released on 2015-12-01.

    Tags: Firewall Software, Russian Inventions, Shareware
  • uBlock Origin by Current:,Raymond Hill, Nik Rolls,Past:,Deathamns, Chris Aljoudi, Alex Vallat

    uBlock Origin (pronounced you-block ) is a free and open source, cross-platform browser extension for content-filtering, including ad-blocking. The extension is available for several browsers:...

    Tags: 2014 Software, Advertisingfree Media, Computerrelated Introductions In 2014, Firefox Addons, Firewall Software, Free Security Software, Google Chrome Extensions, Internet Privacy Software, Online Advertising
  • netpgp by NetBSD Project

    netpgp is a BSD licensed project based on the OpenPGP SDK which provides signing, verification, encryption, and decryption of files. It also comes with the netpgpkeys tool for key management. Netpgp...

    Tags: Cryptographic Software, Netbsd, Openpgp, Privacy Software