Failed to execute operation: No such file or directory(systemctl enable iptables.service)

在保存Iptables配置时：systemctl enable iptables.servicepost 出现错误：code Failed to execute operation: No such file or directoryblog   后来去百度，看到一篇文章说，猜到版本太低，更新一下iptablesip yum install iptables-services 　　 而后在执行：s

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