iptables: iptables-1.2.4 iptables: iptables: Iptables is used to set up, maintain, and inspect the tables of IP iptables: packet filter rules in the Linux kernel. There are several different iptables: tables which may be defined, and each table contains a number of iptables: built-in chains, and may contain user-defined chains. iptables: iptables: iptables: iptables: iptables: