root@wirenboard-AWGFJ7P6:~# systemctl status mosquitto.service
? mosquitto.service - Mosquitto MQTT Broker
     Loaded: loaded (/lib/systemd/system/
; enabled; vendor pre>
     Active: failed (Result: exit-code) since Sun 2023-06-25 17:58:30 +05; 4min>
       Docs: man:mosquitto.conf(5)
             man:mosquitto(8)
    Process: 3359 ExecStartPre=/bin/mkdir -m 740 -p /var/log/mosquitto (code=ex>
    Process: 3375 ExecStartPre=/bin/chown mosquitto /var/log/mosquitto (code=ex>
    Process: 3384 ExecStartPre=/bin/mkdir -m 740 -p /run/mosquitto (code=exited>
    Process: 3392 ExecStartPre=/bin/chown mosquitto /run/mosquitto (code=exited>
    Process: 3402 ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.con>
   Main PID: 3402 (code=exited, status=1/FAILURE)
        CPU: 141ms

Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: Failed to start Mosquitto MQTT >
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: mosquitto.service: Scheduled re>
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: Stopped Mosquitto MQTT Broker.
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: mosquitto.service: Start reques>
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: mosquitto.service: Failed with >
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: Failed to start Mosquitto MQTT >
lines 1-19/19 (END)...skipping...
? mosquitto.service - Mosquitto MQTT Broker
     Loaded: loaded (/lib/systemd/system/mosquitto.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sun 2023-06-25 17:58:30 +05; 4min 21s ago
       Docs: man:mosquitto.conf(5)
             man:mosquitto(8)
    Process: 3359 ExecStartPre=/bin/mkdir -m 740 -p /var/log/mosquitto (code=exited, status=0/SUCCESS)
    Process: 3375 ExecStartPre=/bin/chown mosquitto /var/log/mosquitto (code=exited, status=0/SUCCESS)
    Process: 3384 ExecStartPre=/bin/mkdir -m 740 -p /run/mosquitto (code=exited, status=0/SUCCESS)
    Process: 3392 ExecStartPre=/bin/chown mosquitto /run/mosquitto (code=exited, status=0/SUCCESS)
    Process: 3402 ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf (code=exited, status=1/FAILURE)
   Main PID: 3402 (code=exited, status=1/FAILURE)
        CPU: 141ms

Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: Failed to start Mosquitto MQTT Broker.
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: mosquitto.service: Scheduled restart job, restart counter is at 5.
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: Stopped Mosquitto MQTT Broker.
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: mosquitto.service: Start request repeated too quickly.
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: mosquitto.service: Failed with result 'exit-code'.
Jun 25 17:58:30 wirenboard-AWGFJ7P6 systemd[1]: Failed to start Mosquitto MQTT Broker.