15.0

Chapter 7: Preparing for your Active Directory single sign-on configuration
Running the SetSPN.exe Windows utility
About SetSPN.exe
SetSPN.exe is a Windows utility that registers the Nuance Management Center Service Principal Name
(SPN) with the Windows domain. You run this utility to indicate to the Windows domain that the Nuance
Management Center service is valid and trusted on the domain.
To authenticate using single sign-on, Dragon clients securely pass users' Windows credentials to the
Nuance Management Center service. The credentials are then validated on the NMC server. Dragon clients
cannot connect to Nuance Management Center until you register the SPN for the Nuance Management
Center service.
You must run the utility for single sign-on authentication regardless of whether you're using the Nuance cloud-
hosted NMC server or your own on-premise NMC server.
Downloading SetSPN.exe
SetSPN.exe is included with Microsoft's Windows Support Tools. If this package is not already installed on a
computer in your domain, you can download it from Microsoft's web site:
https://social.technet.microsoft.com/wiki/contents/articles/2170.windows-server-2008-and-windows-server-
2008-r2-support-tools-dsforum2wiki.aspx
Executing SetSPN.exe
You run the utility on any computer that is a member of the Windows domain you're using for your single sign-
on users. You do not need to run the utility on the NMC server. You must be a domain administrator to run this
utility.
You run the SetSPN.exe utility only once.
To run the utility, specify the following from the command line:
SETSPN -A http/nms_spn <computer name>
where <computer name> is the name of your NMC server.
47