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Plan Excel Services Global Settings in SharePoint Server 2013

SharePoint 2013
 

Applies to: SharePoint Server 2013

Topic Last Modified: 2013-12-18

Summary: Learn how to choose authorization (impersonation or process account) and encryption (IPsec or SSL) options for Excel Services.

When you deploy Excel Services in SharePoint Server 2013, you need to plan for the following Global Settings:

For information about configuring these settings, see Manage Excel Services global settings (SharePoint Server 2013).

In Excel Services Global Settings, there are two options for file access method: Impersonation or Process account.

The Impersonation option enables a thread to run in a security context other than the context of the process that owns the thread. Select Impersonation to require Excel Services to authorize users when they try to access workbooks that are stored in UNC and HTTP locations. Selecting this option does not affect workbooks that are stored in SharePoint Server 2013 databases. In most server farm deployments in which front-end web servers and Excel Services application servers run on different computers, impersonation requires constrained Kerberos delegation.

The Process Account option specifies that the user account is not impersonated, and the process account is used when Excel Services opens workbooks from UNC shares or HTTP Web sites.

You can use Internet Protocol Security (IPsec) or Secure Sockets Layer (SSL) to encrypt data transmission among Excel Services application servers, data sources, client computers, and front-end web servers. By default, connection encryption is not required. If you choose to require connection encryption, the Excel Services application server will only enable data transmission between client computers and front-end web servers over SSL connections.

If you decide to require encrypted data transmission, you will have to manually configure IPsec or SSL. You can require encrypted connections between client computers and front-end web servers while enabling connections that are not encrypted between front-end web servers and Excel Services application servers.

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