To reload the firewall with out interrupting user connections, that is to say, with out losing state information, enter the following command as root:

~]# firewall-cmd --reload

To reload the firewall and interrupt user connections, that is to say, to discard state information, enter the following command as root:

~]# firewall-cmd --complete-reload

This command should normally only be used in case of severe firewall problems. For example, if there are state information problems and no connection can be established but the firewall rules are correct.