Too good to #0005

Prioritizing own NTP servers for systemd-timesyncd

# cat /etc/systemd/timesyncd.conf.d/timesyncd-corporate.conf 
[Time]
NTP=ntp1.example.com ntp2.example.com ntp.ubuntu.com

Test if text is empty (even if it does contain a linebreak)

Good job by: https://unix.stackexchange.com/q/386499/2028

if ! grep -q '[^[:space:]]' "${file}"; then echo "Text is empty"; fi

Watch for changes in the Gnome registry

(To reproduce manual changes, for configuration management.)

dconf watch / # (Sorry, thats all)

Trigger Debian/Ubuntu unattended-upgrade

(For testing configuration changes)

rm /var/lib/apt/periodic/*
systemctl start apt-daily.service 
systemctl start apt-daily-upgrade.service 

And remember:

tail -f /var/log/unattended-upgrades/*log