NIS在视窗左侧显示各个部件，比如当前状态（CurrentStatus）或者入侵保护（Intrusion Protection）。点击选项，随后在视窗右侧就会出现工具、设置或者状态，这点和SystemWorks一模一样。
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传输层安全、消息级安全、入侵保护、身份认证和访问控制——安全的确是一等公民，而且网关中有证书来证实这一点。
Transport-layer security, message-layer security, threat protection, identity and access control – security is truly a first class citizen, and the gateways have the certifications to prove it.
随着确保罗马边境安全所需资源的增加，罗马领导人之间就如何最好地保护罗马领土不受入侵部落的侵扰这一问题产生了严重的冲突。
As the resources needed to secure Rome's borders increased, serious conflicts developed among Roman leaders over how best to protect Roman territory against invading tribes.
堡垒的保护更容易因为它构造更简单：它没有窗口、几乎没有几道门，没有天窗或通风系统这些入侵者可能利用的东西。
A fortress is easier to protect because it's simpler: it has no windows, few doors, no skylights, or vent systems through which an intruder might sneak.
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