Am Mittwoch, den 05.07.2017, 20:10 +1000 schrieb Michael Chapman:
> I'm pretty sure you'll find that it does. Specifically, it will fail when
> the child process for the command being executed attempts to map the
> username to a UID.
>
> The issue being discussed here is that systemd considers "0day" to be
> _syntactically_ invalid for a username. See the valid_user_group_name()
> function in basic/user-util.c.
What a valid username is, is defined in POSIX. If systemd wants
to support only a subset of those, fair enough, but then it must
totally fail anything that uses such a name. Falling back to
another user is not acceptable. It being root is especially bad.
Regards
Oliver
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