howto restart a service in postinst script (Stretch and newer)
the Debian Policy Manual still talks about "run levels" and
"init.d scripts" on
No word about systemd and others.
What is the right way to restart a service from the postinst
script for Stretch and newer?
Reason for asking is: opensmtpd died once too often when it got
restarted via invoke-rc.d from a postinst script on my desktop
Every helpful comment is highly appreciated