Updated: April 17, 2012
Applies To: Windows Server 2008 R2, Windows Server 2012, Windows 8
Removes a service principal name (SPN) mapping between the stated host and the realm. For examples of how this command can be used, see Examples.
When a host to realm (or multiple hosts to realm) mapping exists, this command removes that mapping.
The mapping is recorded in the registry in HKEY_LOCAL_MACHINE\SYSTEM\CurrentContolSet\Lsa\Kerberos\HostToRealm. You should verify the mapping in the registry after using this command.
Altering the configuration of the realm CONTOSO, delete the mapping of the host computer IPops897 to the realm:
ksetup /delhosttorealmmap IPops897 CONTOSO
After running this command, you can verify in the registry that the mapping is as intended.