====== systemd ======
===== Niveau de log ====
  * 0 = emergency
  * 1 = alert
  * 2 = critical
  * 3 = error
  * 4 = warning
  * 5 = notice
  * 6 = info & debug

Exemple :
<code>
[Service]
LogLevelMax=3
</code>

===== Relancer un service après une veille =====
<code>
[Unit]
After=hibernate.target
After=hybrid-sleep.target
After=suspend.target
After=suspend-then-hibernate.target
 
[Service]
Type=simple
ExecStart=/bin/systemctl --no-block restart your-unit.service

[Install]
WantedBy=hibernate.target
WantedBy=hybrid-sleep.target
WantedBy=suspend.target
WantedBy=suspend-then-hibernate.target
</code>


===== Références =====
  * https://systemd.io/
  * https://fr.wikipedia.org/wiki/Systemd