Port double dots is now hard written in the code

extra/config.ini.example

@@ -1,7 +1,7 @@
 AppMode = "production" #Anything != production will show DEBUG messages
 
 [App]
-IP = ":"
+IP = ""
 Port = 5353
 Logfile = true
 Logdir = "/var/log/"

main.go

@@ -46,7 +46,7 @@ func main() {
 	}
 
 	//Start the DNS server
-	server := &dns.Server{Addr: conf.App.IP + strconv.Itoa(conf.App.Port), Net: "udp"}                   //define the server
+	server := &dns.Server{Addr: conf.App.IP + ":" + strconv.Itoa(conf.App.Port), Net: "udp"}             //define the server
 	logrus.WithFields(logrus.Fields{"ip": conf.App.IP, "port": conf.App.Port}).Infof("SERVER : Started") //log
 	err = server.ListenAndServe()                                                                        //start it
 	utils.CheckErr(err)