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Provisioning the Microsoft Dynamics NAV Server Account

Microsoft Dynamics NAV 2013

When you install Microsoft Dynamics NAV Server, you must identify an Active Directory account to provide credentials for the server. By default, Microsoft Dynamics NAV 2013 Setup runs Microsoft Dynamics NAV Server under the Network Service account, a predefined local account used by the service control manager. This account has minimum privileges on the local computer and acts as the computer on the network.

We recommend that you create a domain user account for running Microsoft Dynamics NAV Server. The Network Service account is considered less secure because it is a shared account that can be used by other unrelated network services. Any users who have rights to this account have rights to all services that are running on this account. If you create a domain user account to run Microsoft Dynamics NAV Server, you can use the same account to run SQL Server, whether or not SQL Server is on the same computer.

This topic has two sections:

Provisioning a Domain User Account

If you are running the Microsoft Dynamics NAV Server under a domain user account, you must:

  • Enable the account to log in as a service

  • Enable the account to register an SPN on itself

  • Give the account necessary database privileges in SQL Server

Enabling the account to log in as a service

Depending on various factors, the account may or may not already have this ability. For example, if you have already installed SQL Server and configured it to run under the same account, SQL Server will have modified the account to log in as a service.

Instructions for enabling an account to log in as a service are available on TechNet. See Add the Log on as a service Right to an Account. The instructions are for Windows Server 2008. For Windows 7, use this version of the procedure: Add the Log on as a service right to an account.

When this permission is lacking, Microsoft Dynamics NAV Server server instances may not be able to start.

Enabling the account to register an SPN on itself

To enable secure mutual authentication between clients and Microsoft Dynamics NAV Server, you must configure the Microsoft Dynamics NAV Server account to self-register Service Principal Names (SPNs). Mutual authentication is recommended in a production environment but may not be necessary in a testing or staging environment. The following procedure assumes a computer running Windows Server 2008 or Windows Server 2008 R2. On Windows 7 or Windows Vista you would need to install the Remote Server Administration Tools first.

To enable the Microsoft Dynamics NAV Server account to register an SPN on itself

  1. Start the Active Directory Users and Computers snap-in in Microsoft Management Console (MMC):

    1. Choose Run on the Start menu, type mmc on the command line, and the choose OK.

    2. When the console opens, select Add/Remove Snap-In from the File menu, select Active Directory Users and Computers, and choose Add.

      If you do not see Active Directory Users and Computers in the list of available snap-ins, you may need to use Server Manager to install the Active Directory Domain Services role on your server computer.

  2. In MMC, select Active Directory Users and Computers in the tree view and choose Advanced Features from the View menu.

  3. Expand the domain node in the tree view and choose Users.

  4. Right-click the service account, select Properties, and then choose to display the Security tab.

  5. Choose SELF in the Group or user names list.

  6. Under Permissions for SELF, in the lower part of the panel, scroll down to Write public information and select the Allow column.

  7. Choose OK to exit the Properties panel, and close Active Directory Users and Computers.

Giving the account necessary database privileges in SQL Server

Verify database privileges after you create your Microsoft Dynamics NAV database. Use SQL Server Management Studio to verify and, if necessary, to modify database privileges. If you have installed SQL Server with the guidelines in Installation Considerations for Microsoft SQL Server, then SQL Server Management Studio is already installed on your computer. Otherwise, update your SQL Server installation to include the Management Tools - Complete option for SQL Server.

Hh166150.note(en-us,NAV.70).gifNote
If your database is the Demo database, or if you have installed Microsoft Dynamics NAV Server and SQL Server on the same computer, the Microsoft Dynamics NAV Server account should already have the necessary database privileges. Otherwise, Microsoft Dynamics NAV clients will not be able to establish a database connection.

To assign necessary database privileges for the Microsoft Dynamics NAV Server account

  1. Start SQL Server Management Studio and connect to the instance where the Microsoft Dynamics NAV database is installed.

  2. Create a login for the Microsoft Dynamics NAV Server account.

    1. Navigate the tree view: Security, Logins

    2. Right-click Logins and choose New Login.

    3. Choose Search, and use the Select User or Group dialog box to identify the Microsoft Dynamics NAV Server account.

    4. Choose OK to exit the New Login dialog box.

  3. Add the login as a user on the master database.

    1. Navigate the tree view: Databases, System Databases, master, Security, Users.

    2. Right-click Users and choose New User.

    3. Choose the ellipse button at the far right of the second line in the Database User – New dialog box.

    4. In the Select Login dialog box, enter or browse for the login you created for the Microsoft Dynamics NAV Server account.

    5. Enter a name in the User name field (the first line in the Database User - New dialog box).

    6. Choose OK to exit the Database User - New dialog box.

  4. Grant the Microsoft Dynamics NAV Server login permissions on the master database. In the tree view, right-click master and choose Properties. Then do the following in the Database Properties – master dialog box.

    1. Under Select a Page, choose Permissions.

    2. Under Name, choose the login you created for the Microsoft Dynamics NAV Server account name.

    3. Under Permissions for <username>, on the Explicit tab, scroll down to down to the Select line, and select the check box in the Grant column.

    4. Choose OK to exit the Database Properties – master dialog box.

    5. Navigate the tree view: Databases, System Databases, master, Tables, System Tables.

    6. Right-click the dbo.$ndo$srvproperty table and choose Properties.

    7. Under Select a Page, choose Permissions.

    8. Choose Search, and use the Select User or Group dialog box to identify the login for the Microsoft Dynamics NAV Server account.

    9. Under Permissions for <username>, on the Explicit tab, scroll down to down to the Select line, and select the check box in the Grant column.

    10. Choose OK to exit the Table Properties – dbo.$ndo$srvproperty dialog box.

  5. Grant the login the necessary database roles on the Microsoft Dynamics NAV database.

    1. Navigate the tree view: Databases, <your Microsoft Dynamics NAV database>, Security, Users.

    2. Right-click Users and choose New User.

    3. In the Database User – New dialog box, choose the ellipse button at the far right of the second line.

    4. Select the login you created for the Microsoft Dynamics NAV Server account name and choose OK.

    5. Under Database role membership, select the following check boxes:

      • db_datareader

      • db_datawriter

      • db_ddladmin

    6. Choose OK to exit the Database User – New dialog box.

    7. Right-click your Microsoft Dynamics NAV database and choose Properties.

    8. Under Select a Page, choose Permissions.

    9. Choose Search, and use the Select User or Group dialog box to identify login you created for the Microsoft Dynamics NAV Server account.

    10. Under Permissions for <username>, on the Explicit tab, scroll down to down to the View database state line, and select the check box in the Grant column.

    11. Choose OK to exit the Database Properties dialog box for your Microsoft Dynamics NAV database.

It is also possible to script these steps in SQL Server Management Studio:

USE [master]
GO
CREATE LOGIN [domain\accountname] FROM WINDOWS 
CREATE USER [domain\accountname] FOR LOGIN [domain\accountname] 
GRANT SELECT ON [master].[dbo].[$ndo$srvproperty] TO [domain\accountname]
GO
USE [Microsoft Dynamics NAV Database]
GO
CREATE USER [domain\accountname] FOR LOGIN [domain\accountname]
ALTER ROLE [db_datareader] ADD MEMBER [domain\accountname]
ALTER ROLE [db_datawriter] ADD MEMBER [domain\accountname]
ALTER ROLE [db_ddladmin] ADD MEMBER [domain\accountname]
GRANT VIEW DATABASE STATE TO [domain\accountname]

Provisioning the Network Service Account

The only circumstance where it is necessary to take any action with regard to the Network Service account is after you upgrade from Microsoft Dynamics NAV 2009 to Microsoft Dynamics NAV 2013. In this situation you must verify that the account has the necessary database privileges in SQL Server, as per Giving the account necessary database privileges in SQL Server, above.

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