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iptables Basic

Basic iptables Introduction Kubernetes kube-proxy provides the important role to work with Service resource. kube-proxy will create and define iptables rules to manipulate the network traffic for the service resource. iptables is a Linux firewall. In this article, we will introduce very basic iptables concepts: tables, chains and targets. Tables are files are join similar actions. There are several build-in tables. Chains are the set of rules. Rules are statements about what to do with the network package.