3.4.2.4 Ensure network interfaces are assigned to appropriate zone
Information
firewall zones define the trust level of network connections or interfaces. A network interface not assigned to the appropriate zone can allow unexpected or undesired network traffic to be accepted on the interface.
Solution
Run the following command to assign an interface to the approprate zone. # firewall-cmd --zone=<Zone NAME> --change-interface=<INTERFACE NAME> Example: # firewall-cmd --zone=customezone --change-interface=eth0 Impact: Changing firewall settings while connected over network can result in being locked out of the system.