New AD DC servers run Fedora 40. Their LDAP server certificates are
issued by *step-ca* via ACME, signed by *dch-ca r2*.
I've changed the naming convention for domain controllers again. I
found the random sequenc of characters to be too difficult to remember
and identify. Using a short random word (chosen from the EFF word list
used by Diceware) should be a lot nicer. These names are chosen by the
`create-dc.sh` script.