Re: [SSSD] GSSAPI and Kerberos - understanding question

[John Hodrien]

On Mon, 28 Nov 2011, Ondrej Valousek wrote:
> Yes.  My understanding is the only difference between a service principal and
> a user principal is that the KDC will not issue a ticket granting ticket to a
> service principal.
>
> jh
>
> Yes and it is no wonder  because UPN and SPN serve a different task. I
> recommend searching MS technet for this. They have a nice explanation for
> this.

In simple terms it's service for a receiver and user for initiator.
Unfortunately this can sometimes get a little blury.  NFSv4 is a good example
of that.

jh