drcoccodrillus/bind9 repository overview

⁠drcoccodrillus/bind9

A dockerized and customizable DNS Server based on bind9⁠

⁠General description

This Docker image is based on the ubuntu/bind9⁠ image maintained by Canonical.

⁠Default configuration

Every Docker container created from this image has the following standard network configuration:

If you need to change the DNS Server configuration you need to jump into the container and edit the following files:

• /etc/bind/zones/db.bushido.local
• /etc/bind/named.conf.local
• /etc/bind/named.conf.local

Or even better you should write a Dockerfile similar to the one below so you can copy new configuration files into it:

FROM drcoccodrillus/bind9:latest

COPY named.conf.options /etc/bind/
COPY named.conf.local /etc/bind/
COPY db.bushido.local /etc/bind/zones/

⁠How to use it

Using this dockerized version of Bind9 is pretty simple. Just follow the steps below in order to make it working on your system.

⁠Start bind9 contatiner

docker run -d --name=dns-server --net=bushido-network --ip=172.100.0.2 drcoccodrillus/bind9

⁠Start two host test containers

docker run -d --rm --name=host1 --net=bushido-network --ip=172.100.0.3 --dns=172.100.0.2 ubuntu:22.04 /bin/bash -c "while :; do sleep 10; done"

docker run -d --rm --name=host2 --net=bushido-network --ip=172.100.0.4 --dns=172.100.0.2 ubuntu:22.04 /bin/bash -c "while :; do sleep 10; done"

⁠Jump into container host1

docker exec -it host1 /bin/bash

⁠From host1 try to ping host2

ping 172.100.0.4