对于低级的攻击,ping流可用于偷偷地查找信息,但是如果要截取向目标发送的包,则要求系统离线或停机。
At the low end, a ping flood can be used to uncover information covertly, but throttle up the packets being sent to a target or victim so that now, the system will go offline or suffer slowdowns.
然后该实用程序下载必要的软件包,并使用低级Debian软件包管理工具安装它们。
The utility then downloads the necessary packages and installs them using lower-level Debian package management tools.
然而,多数包过滤是不分国家的,它们只懂得低级协议,难以配置和验证。
However, most packet-filters are stateless, understand only low-level protocols, and are difficult to configure and verify.
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