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Published: May 25, 2011

Updated: April 17, 2012

Applies To: Windows Server 2008 R2

Adds a service principal name (SPN) mapping between the stated host and the realm. For examples of how this command can be used, see Examples.

ksetup /addhosttorealmmap <HostName> <RealmName>


Parameter Description


The host name is the computer name, and it can be stated as the computer's fully qualified domain name.


The realm name is stated as an uppercase DNS name, such as CORP.CONTOSO.COM.

This command allows you to map a host or multiple hosts that are sharing the same DNS suffix to the realm.

The mapping is recorded in the registry in HKEY_LOCAL_MACHINE\SYSTEM\CurrentContolSet\Lsa\Kerberos\HostToRealm.

As part of configuring the realm CONTOSO, map the host computer IPops897 to the realm:

ksetup /addhosttorealmmap IPops897 CONTOSO

Verify in the registry that the mapping is as intended.

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