对常见服务之间细微差别的完整讨论-它们怎么启动、它们如何对客户机作出反应、其内在安全性问题和认证方法-已超出了本文的范围。
A full discussion of the nuances of common services — how they're started, how they react to client, inherent security issues and authentication methods — is beyond the scope of this document.
相比之下，授权是系统用来决定已通过认证的某个特定用户访问系统控制的安全资源的访问级别的一种机制。
Authorization, by contrast, is the mechanism by which a system determines what level of access a particular authenticated user should have to secured resources controlled by the system.
产品已顺利通过了欧洲的安全标准——CE认证。
Products have passed the European safety standards — ce certification.
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