iptables 启动失败的 完美解决步骤
```
service iptables save
systemctl stop firewalld
systemctl disable firewalld
systemctl start iptables
systemctl status iptables
systemctl enable iptables
```
centos7 iptables启动失败,提示Failed to start IPv4 firewallcentos7重启iptables时失败,通过systemctl status iptables.service查看错误信息,内容如下所示: # *systemctl sta...