Mosquitto config file

I want to make some changes to the mosquitto config file. I have seen that it is supposed to be in the /etc/mosquitto/conf.d folder but it is emty. Instead I have found it in /home/pi/hassbian-scripts/files.
I have tried to make some changes to it but it does not seem to have any effect.
Anyone knows what to do?

Try this below. The entry after the -c should have the config location…

[root@HA-Centos ~]# systemctl status mosquitto.service
● mosquitto.service - Mosquitto MQTT v3.1/v3.1.1 Broker
   Loaded: loaded (/usr/lib/systemd/system/mosquitto.service; enabled; vendor preset: disabled)
   Active: active (running) since Wed 2017-06-21 19:46:49 CDT; 3 weeks 2 days ago
     Docs: man:mosquitto.conf(5)
           man:mosquitto(8)
 Main PID: 699 (mosquitto)
   CGroup: /system.slice/mosquitto.service
           └─699 /usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf

What should I Do with it?

What do you want to do, exactly?

I think I have solved it. It actually was placed in the etc/mosquitto/ folder but the file was almost emty.
I needed to enable dubug logging for some support issue regarding owntracks. It seems to Work.
Anyhow I still need to locate the ACL file which I can´t.