iptables in Linux

We use iptables to create firewall rules. In this article, we learn about iptables and how to manage firewall rules in Linux.

Table of contents.Introduction.Installing iptables.Syntax.CommandsAn example.Summary.References.Introduction.

iptables are programs used by systems administrators to define firewall rules in Linux.

A rule is a condition we specify to match a packet.
We can use them to block or allow traffic through a firewall.
This information is stored in tables, these tables h...