Post Syndicated from Lennart Poettering original https://0pointer.net/blog/projects/syslog.html

I just finished putting together a text on the systemd wiki explaining what
to do to write a syslog service that is nicely integrated with systemd, and
does all the right things. It’s supposed to be a checklist for all syslog
hackers:

Read it now.

rsyslog already implements everything on this list afaics, and that’s
pretty cool. If other implementations want to catch up, please consider
following these recommendations, too.

I put this together since I have changed systemd 35 to set
StandardOutput=syslog as default, so that all stdout/stderr of all
services automatically ends up in syslog. And since that change requires some
(minimal) changes to all syslog implementations I decided to document this all
properly (if you are curious: they need to set StandardOutput=null to
opt out of this default in order to avoid logging loops).

Anyway, please have a peek and comment if you spot a mistake or
something I forgot. Or if you have questions, just ask.