format of service principal name (SPN)

Hello,

We need to set up the service principal name for a service in this format

<class>/<host:port>/<service name>

we provide the distinguished name of the service in question. However we
found that this cannot have spaces in them. Surely distinguished names of
objects can have spaces in them. Can you suggest a solution to this. If we
use object guid what format do we enter that?

Thanks
Shakti


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