= How to edit iptables rules

.Outdated information
[CAUTION]
====
A newer, more flexible access control service, firewalld,
is now the default firewall manager for Fedora/CentOS.
For most regular users' needs,
firewalld has eliminated the need to edit iptables rules directly.

You may wish to read the <<firewalld.adoc#,Using firewalld>> Quick Doc instead of this document,
as the information provided here is no longer current.
It is preserved mainly for historical interest.
====

In this how-to, we will illustrate how to edit iptables rules
using the `iptables` command and the system configuration file
`/etc/sysconfig/iptables`.

NOTE: This how-to illustrates editing existing iptables rules,
not the initial creation of rules chains.

include::{partialsdir}/iptables-cli.adoc[leveloffset=+1]