由于发生在主机或服务器上的所有活动都要使用操作系统，也就是说，即使攻击者绕过了其它某一种或几种安全防御系统，他们最终都必须使用操作系统。

All activities on a host or server must use operation system, even if attackers of the future discover ways to circumvent other defenses, they must still use the operation system.

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该方案对服务器系统安全有所加强，所占用的主机资源和网络资源较少，适用于针对涉密网等高安全级别的可信系统中。

The prototype system shows the project reinforces security of host system, and the resource usages is less, and it is applicable in secret network.

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