But for general background, you might want to investigate Web-oriented mechanisms such as Basic Authentication, which is described in RFC-2617 and implemented in Apache and other Web servers.
不过在一般的应用背景中，您也许可以研究一下面向Web的机制，例如RFC - 2617中描述的Basic Authentication，它在Apache和其他的Web服务器中都实现了。
Some background on HTTP authentication techniques can be found in RFC-2617.
有关 HTTP 认证技术的背景资料可参看 RFC-2617。
You use a user of type System for communication without dialog within one system (for RFC or CPIC service user) or for background processing within one system.
一个普通的对话用户被用来进行各种类型的登录。
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