---
schema_version: "1"
id: 8c551504914ae3aa7ff43f3ca9a260763a1f9e39eece492bde44da46273e6633
title: Enable Run As Service Account to Act as the Operating System
collection: tableau
version: next
locale: en-us
portal_url: https://docs.salesforce.com/tableau/next/en-us/server/runas_os.md
canonical_url: https://help.tableau.com/v0.0/server/en-us/runas_os.htm
source_site: help.tableau.com
content_type: documentation
content_hash: d4999973286b0ac649b4ac76aa3061068f1d2c2b927b741750b824f4ce64f914
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/next/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.