Iptables - Free Software Directory

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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.


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;

Related Projects


LicenseVerified byVerified onNotes
GPLv2Janet Casey1 September 2004

Leaders and contributors

Harald Welte Maintainer
James Morris Contributor
Mark Boucher Contributor
Rusty Russell Contributor

Resources and communication

Audience Resource type URI
Debian Homepage https://packages.debian.org/jessie/iptables
Help E-mail mailto:netfilter-announce@lists.netfilter.org
Gentoo Homepage https://packages.gentoo.org/packages/net-firewall/iptables
Developer E-mail mailto:netfilter-devel@lists.netfilter.org
NetBSD Homepage http://pkgsrc.se/wip/iptables
Support E-mail mailto:netfilter@lists.netfilter.org
Guix Homepage https://www.gnu.org/software/guix/packages/i.html
Bug Tracking Bug Tracking http://bugzilla.netfilter.org/
Developer VCS Repository Webview http://git.netfilter.org/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 15 February 2017.


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