Ipchains

ipchains
Developer(s)Rusty Russell
Initial releasepre-1998 (1998)
Final release
1.3.10 / October 6, 2000 (2000-10-06)
Written inC
Operating systemLinux
PlatformLinux kernel
Predecessoripfirewall
Successoriptables
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 It superseded ipfirewall (managed by ipfwadm command), but was replaced by iptables in the 2.4 series. Unlike iptables, ipchains is stateless.