root/ host/ <uid 0 service like nfs>/ ?!?

Harry Coin <[email protected]>
Newsgroups gmane.comp.encryption.kerberos.heimdal.general
Message-ID <[email protected]> 
Is there a settled intention or reference for the nuances among 'uid 0 
principals'?

Though I don't see it set forth as such, my sense is that for principals:

root/<fqdn>@REALM is intended to mean a person logged in and issuing 
commands as local uid 0 / root on <fqdn>.

<other-than-host>/<fqdn>@REALM is intended to be the name of a 
daemon/service/non-person-with-at-least-one-process-id, possibly with 
uid:0, running on <fqdn>.  Viz: nfs4 server/0.  ldap uid varies 
*bsd/*nix, etc.

host/<fqdn>@REALM is intended to be a 'catch all' principal for all 
uid:0 services running on <fqdn> that, well, what?  Missed the memo 
above?   Got it correct? What?

Is there consensus about what 'best practice' is in this regard?
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.