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có chứa các hướng dẫn cấu hình chỉ định thầu và Tài khoản không được giám sát cho Excel Services. Một lựa chọn khác là để cấu hình các dịch vụ lưu trữ an toàn một cách rõ ràng để thu hồi chứng chỉ. | 100 Chapter 4 Excel Services The Unattended Account is simply a user account created for the purpose of read-only access to data sources. The account credentials user name and password must be stored in the Secure Store Service SSS . SSS is another service application similar to Excel Services that stores accounts securely. The article at http technet.microsoft.com en-us library ff191191. aspx Configure Secure Store Service for Excel Services SharePoint Server 2010 contains instructions for configuring SSS and the Unattended Account for Excel Services. Another option is to configure the Secure Store Service explicitly for credential retrieval. Basically SSS stores credentials in a secure way that makes them available to service applications like Excel Services to use for things such as data refresh. An administrator must configure it and set permissions so the right user groups have access to the credentials. A workbook author must then know the key or Application ID to use in the workbook to ensure that the right set of credentials is requested when the user tries to refresh the data in the workbook. So it is better than the simple one account for everyone to refresh data on the server approach does have more setup overhead but usually isn t quite as hard to configure as the option we discuss next. For more information about Secure Store Service see http technet.microsoft.com en-us library ee806889.aspx. If you want per-user security the best option is to configure Kerberos in your environment. Kerberos configuration can be complex and you might not need it if your users need simple read-only access via a single account. See Configuring Kerberos Authentication for Microsoft SharePoint 2010 Products at http www.microsoft.com downloads en details. aspx FamilyID 1a794fb5-77d0-475c-8738-ea04d3de1147 displaylang en for more information about Kerberos configuration. To configure authentication in the workbook In most deployments the workbook author must explicitly mark
