If either of these commands fail, contact your system or network administrator to ensure that the machine is correctly configured.

如果其中任一个命令失败，请联系系统或网络管理员，以确保该计算机已正确地配置。

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Once you come up with solution alternatives, check or coordinate your solution alternatives with a network or system administrator for a mutual understanding.

在您答完这些问题后，请与一名网络管理员或系统管理员检查和整理这些答案，以促进相互了解。

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This article focuses specifically on the practical aspects of periodic system auditing based on real-world requirements from a system administrator of a subnet in a large academic network.

本文的重点是基于管理大型学术网络子网的系统管理员的真实需求而总结出的一些周期性的系统审计实践。

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