Dockerfile.dns

FROM ubuntu:latest

# Evitiamo prompt interattivi
ENV DEBIAN_FRONTEND=noninteractive

RUN apt-get update && \
    apt-get install -y bind9 dnsutils && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Creiamo la cartella per le zone (se non esiste)
RUN mkdir -p /etc/bind/zones

# Copia dei file di configurazione nel container
COPY ./dns/named.conf /etc/bind/named.conf
COPY ./dns/named.conf.options /etc/bind/named.conf.options
COPY ./dns/named.conf.local /etc/bind/named.conf.local
COPY ./dns/provahacking.it /etc/bind/zones/provahacking.it
COPY ./dns/db.192.168.56 /etc/bind/zones/db.192.168.56

# Facoltativo: modifica permessi (se necessario)
RUN chown bind:bind /etc/bind/zones/provahacking.it /etc/bind/zones/db.192.168.56

# Espone la porta 53 (DNS)
EXPOSE 53/udp
EXPOSE 53/tcp

# Avvia bind9 (named) in foreground
CMD ["/usr/sbin/named", "-g", "-4"]