openwrt-packages-dist/net/ddns-scripts/files/usr/share/ddns/default/dynu.com.json

{
	"name": "dynu.com",
	"ipv4": {
		"url": "http://api.dynu.com/nic/update?hostname=[DOMAIN]&myip=[IP]&username=[USERNAME]&password=[PASSWORD]"
	},
	"ipv6": {
		"url": "http://api.dynu.com/nic/update?hostname=[DOMAIN]&myipv6=[IP]&username=[USERNAME]&password=[PASSWORD]"
	}
}