Linux 解决CentOS7关闭/开启防火墙出现Unit iptables.service failed to load: No such file or directory.
转载:http://blog.csdn.net/c233728461/article/details/52679558CentOS7中执行[plain]viewplaincopyserviceiptablesstart/stop会报错Failedtostartiptables.service:Unitiptables.servicefailedtoload:Nosuchfileordirector