CentOS restore firewall after `service iptables panic` My friend and I were doing some firewall configurations and in the meanwhile he thought it was a good idea to type `service iptables panic`. Now we cannot put the firewall back on the original state (default). It blocks all connections. We have tried everything: iptables -F service iptables save service iptables stop service iptables start etc.... What can we do to restore original and clean firewall configurations?

The only thing that worked was to:


$ setup


and activate all services on firewall again.