# DNS Masq Netbox updater NetBox updater service is designed to function as a simple webserver waiting for WebHook calls from a NetBox instance. After receiving `GET /update-dnsmasq` API query it calls NetBox, lists all defined IP addresses with DNS names and creates a new `/etc/dnsmasq.d/netbox.conf` file. The file defines all retrieved hosts as `A` records. Then the **dnsmasq.service** is restarted.