> The key to getting good answers is to ask good questions.
Apparently, I'm not quite asking "good questions" this weekend.

I was looking for a more integrated view of journald so I could differentiate the advice given in this thread, and see how the two approaches provided in this thread converge or diverge.  (Why do I feel like a mathematician right now?)  None of the 4 sources:
the Fedora sys. admin. guide, the digitalocean tutorial, the journalctl man page, and the journald.conf man page
quite do it, separately or together.

For review, the two approaches are:
A. using journald.conf to customize journald, and
B. (1) "journalctl --flush --rotate"; (2) "rm -rfv /var/log/journal/*/*@*"; (3) "journalctl --update-catalog --sync".

My first question:
If I use journald.conf to, say (hypothetical values for now):
* have the system start a new journald file each day, and
* delete journald files once they're a month old,
would I still need to do B above, or will A automatically cause the clean-out of all journald files more than a month old (maybe the next day or after a reboot)?

Second question:
What is the preferred way of changing the journald configuration?  That is, is there some GUI or tool for that, or do I simply edit "/etc/systemd/journald.conf" using my favorite editor (vi)?

Third question:
My impression is that approach B is only a temporary fix; "/var/log/journal/" would eventually get huge again.  Am I correct?

thanks,
Bill.