Custom LDAP and database requirements, Single Sign-on, and content feeds, at a minimum, all present challenges in getting the initial portal set up.

自定义LDAP和数据库需求、单点登录和在最短时间内的内容馈送，所有这些都是最初建立门户时所面临的挑战。

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At a minimum, you must provide one set of content skin user controls for the Default theme.

至少，您必须为Default主题提供一组内容外观用户控件。

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