Regarding ticket
https://fedorahosted.org/sssd/ticket/2403
The only thing we should do IMO is to
change the level of debug message to reflect
the actual content of the message.
Other than that, this is not an SSSD bug and
I would prefer not to special case nfsnobody
or nobody, or any other external daemon specific
users. If someone asks for non existing user, we
log that the user does not exist and that is correct
behaviour.
Simple patch is attached (I would personally prefer
to put it to master only).
Michal