Document URL: 
https://access.redhat.com/documentation/en/red-hat-satellite/6.2/paged/installation-guide/chapter-2-preparing-your-environment-for-installation

Section Number and Name: 
2.6. Enabling Connections from a Client to Satellite Server
2.7. Enabling Connections from Capsule Server to Satellite Server
2.8. Enabling Connections from Satellite Server and Clients to a Capsule Server
5.2. Verifying and Starting the DNS Service
5.4. Configuring Satellite Server with External DHCP
5.6.1. Configuring the Firewall for External Access to TFTP

Describe the issue:

This command:
iptables-save > /etc/sysconfig/iptables

 is not as safe to use as:
service iptables save

1] Partly because we avoid the use of redirection in commands  because they are not as safe or newbie friendly as other methods

2] It is possible to change the path in the config file, which would make that command not work but the "service iptables save" command would still work.

Suggestions for improvement:

sed -i "s|iptables-save > /etc/sysconfig/iptables|service iptables save|g" topics/*.adoc

Additional information: