Centos7执行”service iptables save”错误提示的解决方法

在centos7中用iptables命令配置完策略规则后，需要保存策略永久生效，执行service iptables save时提示：

# service iptables save
The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.

的错误信息的解决方法：

1、先执行如下命令：

systemctl stop firewalld
systemctl mask firewalld

2、安装iptables services

yum install iptables-services

3、设置开机启动

systemctl enable iptables

4、重启iptables service

systemctl restart iptables

5、执行保存配置命令

service iptables save