Iptables

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iptables

http://www.iptables.org/
program to configure the Linux IP packet filtering rules

iptables is the userspace command line program used to configure the Linux 2.4.x and later IPv4 packet filtering ruleset (firewall). It is targeted at system administrators. Since Network Address Translation is also configured from the packet filter ruleset, iptables is used for this, too. The iptables package also includes ip6tables. ip6tables is used for configuring the IPv6 packet filter.

It is an enhancement on ipchains, and is used to control packet filtering, Network Address Translation (masquerading, portforwarding, transparent proxying), and special effects.

Documentation

User and developer FAQs available in various languages from http://www.iptables.org/documentation/index.html#documentation-faq; User tutorials available from http://www.iptables.org/documentation/index.html#documentation-howto; User HOWTOs available from http://www.iptables.org/documentation/index.html#documentation-howto;

This is a high priority project

Download

http://ftp.netfilter.org/pub/iptables/iptables-1.6.1.tar.bz2

version 1.6.1 (stable)
released on 27 January 2017

User level

Advanced

VCS Checkout

git clone git://git.netfilter.org/iptables.git

Categories

• Interface:command-line
• Programming-language:C
• Runs-on:GNU/Linux
• Security:firewall
• Use:security
• Use:system-administration

Related Projects

• Cutter
• Ipchains
• AGT
• Knetfilter
• Rope

Licensing

License

Verified by

Verified on

Notes

License

License:GPLv2

Verified by

Janet Casey

Verified on

1 September 2004

Leaders and contributors

Contact(s)	Role
Harald Welte	Maintainer
James Morris	Contributor
Mark Boucher	Contributor
Rusty Russell	Contributor

Resources and communication

Audience	Resource type	URI
Bug Tracking	Bug Tracking	http://bugzilla.netfilter.org/
NetBSD	Homepage	http://pkgsrc.se/wip/iptables
Help	E-mail	mailto:netfilter-announce@lists.netfilter.org
Guix	Homepage	https://www.gnu.org/software/guix/packages/i.html
Developer	E-mail	mailto:netfilter-devel@lists.netfilter.org
Debian (Ref)		https://tracker.debian.org/pkg/iptables
Support	E-mail	mailto:netfilter@lists.netfilter.org
Ruby (Ref)		https://rubygems.org/gems/iptables
Developer	VCS Repository Webview	http://git.netfilter.org/iptables/
Gentoo	Homepage	https://packages.gentoo.org/packages/net-firewall/iptables

Software prerequisites

Kind	Description
Required to use	Linux kernel 2.4.4 or later (author recommends 2.4.18 or later)

This entry (in part or in whole) was last reviewed on 17 April 2018.

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