systemctl status mosquitto.service
● mosquitto.service - Mosquitto MQTT Broker
     Loaded: loaded (/lib/systemd/system/mosquitto.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2026-01-06 00:00:15 CET; 14h ago
       Docs: man:mosquitto.conf(5)
             man:mosquitto(8)
    Process: 541 ExecStartPre=/bin/mkdir -m 740 -p /var/log/mosquitto (code=exited, status=0/SUCCESS)
    Process: 567 ExecStartPre=/bin/chown mosquitto /var/log/mosquitto (code=exited, status=0/SUCCESS)
    Process: 568 ExecStartPre=/bin/mkdir -m 740 -p /run/mosquitto (code=exited, status=0/SUCCESS)
    Process: 569 ExecStartPre=/bin/chown mosquitto /run/mosquitto (code=exited, status=0/SUCCESS)
   Main PID: 570 (mosquitto)
      Tasks: 1 (limit: 3933)
        CPU: 27.077s
     CGroup: /system.slice/mosquitto.service
             └─570 /usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf

Jan 06 00:00:15 pibi systemd[1]: Starting Mosquitto MQTT Broker...
Jan 06 00:00:15 pibi systemd[1]: Started Mosquitto MQTT Broker.