merged changes

Dockerfile

@@ -3,7 +3,7 @@ FROM alpine:latest
 RUN apk add --no-cache --update \
     bind
 
-EXPOSE 53:53/udp
+EXPOSE 53/udp
 
 COPY ddns.key /etc/bind/ddns.key
 COPY db.0 /etc/bind/db.0
@@ -17,4 +17,4 @@ COPY zones.rfc1918 /etc/bind/zones.rfc1918
 
 VOLUME ["/etc/bind/zones"]
 
-CMD /usr/sbin/named -f -g -u named
+CMD /usr/sbin/named -g -u named -d 11

docker-compose.yml

@@ -2,12 +2,11 @@ version: "3"
 
 services:
   bind:
-    restart: always
     container_name: bind
+    restart: always
     build: .
     volumes:
       - ./named.conf:/etc/bind/named.conf
       - ./zones:/etc/bind/zones
     ports:
-      - "53:53/tcp"
       - "53:53/udp"