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'''Linux IP Firewalling Chains''', normally called '''ipchains''', is ] to control the ] or ] capabilities in the 2.2 series of ]s. It superseded ], but was replaced by ] in the 2.4 series. Unlike iptables, ipchains is stateless. '''Linux IP Firewalling Chains''', normally called '''ipchains''', is ] to control the ] or ] capabilities in the 2.2 series of ]s. It superseded ], but was replaced by ] in the 2.4 series. Unlike iptables, ipchains is stateless.


It is a rewrite of Linux's previous ] ], ]. This newer ipchains was required to manage the ] in ]s starting with version 2.1.102 (which was a 2.2 development release). Patches are also available to add ipchains to 2.0 and earlier 2.1 series kernels. Improvements include larger maxima for packet ], filtering for ] and a wider range of ], and the ability to match packets based on the inverse of a rule.<ref>{{cite web | url = http://people.netfilter.org/~rusty/ipchains/HOWTO-1.html | title = Linux IPCHAINS-HOWTO | last = Russell | first = Rusty | chapter = 1 | edition=version 1.0.8 | date = 2000-07-04 | accessdate = 2009-02-08 }}</ref> It is a rewrite of Linux's previous ] ], ]. This newer ipchains was required to manage the ] in ]s starting with version 2.1.102 (which was a 2.2 development release). Patches are also available to add ipchains to 2.0 and earlier 2.1 series kernels. Improvements include larger maxima for packet ], filtering for ] and a wider range of ], and the ability to match packets based on the inverse of a rule.<ref>{{cite web | url = http://people.netfilter.org/~rusty/ipchains/HOWTO-1.html | title = Linux IPCHAINS-HOWTO | last = Russell | first = Rusty | chapter = 1 | edition = version 1.0.8 | date = 2000-07-04 | accessdate = 2009-02-08 | deadurl = yes | archiveurl = https://www.webcitation.org/68tRpBPFn?url=http://people.netfilter.org/~rusty/ipchains/HOWTO-1.html | archivedate = 2012-07-04 | df = }}</ref>


The ipchains suite also included some shell scripts for easier maintenance and to emulate the behavior of the old ] command. The ipchains suite also included some shell scripts for easier maintenance and to emulate the behavior of the old ] command.

Revision as of 04:54, 16 November 2017

ipchains
Developer(s)Rusty Russell
Initial releasepre-1998; 26 years ago (1998)
Stable release1.3.10 / October 6, 2000; 24 years ago (2000-10-06)
Written inC
Operating systemLinux
PlatformLinux kernel
TypePacket filter management
LicenseGPL
Websitepeople.netfilter.org/rusty/ipchains/

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 replaced by iptables in the 2.4 series. Unlike iptables, ipchains is stateless.

It is a rewrite of Linux's previous IPv4 firewall, ipfwadm. This newer ipchains was required to manage the packet filter in Linux kernels starting with version 2.1.102 (which was a 2.2 development release). Patches are also available to add ipchains to 2.0 and earlier 2.1 series kernels. Improvements include larger maxima for packet counting, filtering for fragmented packets and a wider range of protocols, and the ability to match packets based on the inverse of a rule.

The ipchains suite also included some shell scripts for easier maintenance and to emulate the behavior of the old ipfwadm command.

The ipchains software was superseded by the iptables system in Linux kernel 2.4 and above.

References

  1. Russell, Rusty (2000-07-04). "Linux IPCHAINS-HOWTO" (version 1.0.8 ed.). Archived from the original on 2012-07-04. Retrieved 2009-02-08. {{cite web}}: |chapter= ignored (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  2. "netfilter/iptables project homepage". 2009-02-06. Retrieved 2009-02-08.

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