For reasons unknown, I ran the following on a machine today:

> # systemctl is-system-running
> degraded

Uh-oh.  *All* my machines were like this. Some due to, i.e., `certbot`
failing to renew a cert for an expired domain.


To find out what's going on, I ran:

# systemctl list-units --state failed
   UNIT                     LOAD   ACTIVE SUB    DESCRIPTION           ●
cantonese-milter.service loaded failed failed Rewrite Cantonese
Word-of-the-Day

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.

1 loaded units listed.


I was then able to fix the failed unit(s) and now:

# systemctl is-system-running
running



Curious, am I really sloppy, or is it common to have a failed unit on
machines? What are your results?

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