---
schema_version: "1"
id: 6e069daba7cebd4321c74c411310fcf71b0ce921b2f83f51776c4f3b2effdef8
title: Enable Run As Service Account to Act as the Operating System
collection: tableau
version: current
locale: en-us
portal_url: https://docs.salesforce.com/tableau/current/en-us/server/runas_os.md
canonical_url: https://help.tableau.com/current/server/en-us/runas_os.htm
source_site: help.tableau.com
content_type: documentation
content_hash: 001405afa761dbba0095ffe429433cb921a1266672b029360bd3debabe3de195
description: Enable the Run As service account to act as the operating system for Kerberos delegation.
---
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# Enable Run As Service Account to Act as the Operating System

To use Kerberos delegation with Tableau Server, you must configure the Run As service account account to act as the operating system on each Tableau Server node.

1. On the computer that is running Tableau Server, select Start > Control Panel > Administrative Tools > Local Security Policy.
2. In the Local Security Settings window, expand Local Policies, click User Rights Assignments, and then right-click Act as part of the operating system and select Properties.
    
    ![The Local Security Policy window displays the User Rights Assignment settings, with the 'Act as part of the operating system' setting highlighted.](/tableau/current/en-us/server/en-us/Img/runas_os.png)
3. In the Act as part of the operating system Properties window, click Add User or Group.
4. Type the `<domain>\<username>` for the Tableau Server Run As service account (for example: `MYCOMPANY\tableau_server`), and then click Check Names.
5. When the account resolves correctly, it is underlined. Click OK.
6. Click OK to close the Local Security Policy windows.