防火墙的基本配置
防火墙的一些基本配置、、值得参考、、我的第一个上传文档，自己觉得挺不错的。也值得我明日考试的参考、、力荐(Some basic configurations of the firewall, worthy of reference, my first upload document, I think it is quite good. It is also worthy of my reference for tomorrow's exam, and highly recommended.)
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