>[danger]Redirecting to /bin/systemctl restart iptables iptables.service 等等類似問題 ``` # 關閉默認防火墻 firewalld systemctl stop firewalld systemctl mask firewalld # 安裝iptables-services yum install iptables-services # 開啟iptables systemctl enable iptables # 管理服務 systemctl [stop|start|restart] iptables # 保存規則 service iptables save or /usr/libexec/iptables/iptables.init save ```