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Last pushed: 2 months ago
Short Description
Super SMALL (5MB) Full ISC Bind9 DNS. Create a quick master, slave, recurve DNS system.
Full Description

ISC BIND9 Container (Stable: 9.11.2_xx) built on top of Alpine

Last update: 2-28-18 (major new update!)

Latest Stable Docker Tag: 9.11.2_p1-r0

NOTE: "Last Update" is the date of the latest DockerHub build.

This container is a super small (~5MB compressed pull, and only ~9MB
when extracted) FULL version of ISC BIND9.

It is ideal for an extremely secure and fast master (authoritative server),
slave, recursive server/resolver, RPZ "dns firewall", or just
about any other purpose you can use bind for.

Security - always on the latest stable BIND release!

This container will always be up to date on the latest
stable+patched version, usually within 24 hours of it being available
in Alpine. In fact, most of the BIND vulnerabilities so far have been
reported by me to the Alpine developers.

How to deploy a Bind (DNS) server?

This container contains everything needed in terms of configuration to
run as an authoritative server or a recursive resolver/forwarding cacher.

However, the default config permits queries and recursion only from 127.0.0.1 - which will not be too useful :)
But the assumption is that you will override /etc/bind with your configs, and /var/cache/bind with your zones.

Required "DATA" directory - for configs and zone data:

This container assumes you have a "/DATA" folder with with your container specific data.
(You can change that folder, sub-folders, and file points as needed, but make sure you update the "-v" mounts for the run.)

Specifically, you need to have these directories/paths:

1.) [ *REQUIRED* ]
In your "/DATA/etc/bind" directory, a file "named.conf", which acts as an entry point to your configs
Take a look at the default config, and the example configs provided

2.) [ *REQUIRED* ]
A "/DATA/var/cache/bind" directory for all of the master or slave zones. If it's for slave zones, it will populate automatically and you can leave it blank.

How to run a BIND ("named") Docker Container?

Default Example:

This is just to test it out - by default only allows queries from
itself (127.0.0.1) -- pretty useless for real world usage

docker run --name=dns-test
-it -d \
--dns=8.8.8.8 --dns=8.8.4.4 \
-p 53:53/udp -p 53:53 \
ventz/bind

Customer Override Example for Authoritative Master

Edit: named.conf.local with your forward zone at least
and create the file in /var/cache/bind/$yourdomain.tld

docker run --name=dns-master
-it -d \
--dns=8.8.8.8 --dns=8.8.4.4 \
-p 53:53/udp -p 53:53 \
-v /DATA/etc/bind:/etc/bind \
-v /DATA/var/cache/bind:/var/cache/bind \
ventz/bind

Custom Override Example for Recursive Resolver/Cacher:

Edit: named.conf.options -> change the "allow-recursion" and "allow-query" with your subnets

docker run --name=dns-resolver
-it -d \
--dns=8.8.8.8 --dns=8.8.4.4 \
-p 53:53/udp -p 53:53 \
-v /DATA/etc/bind:/etc/bind \
-v /DATA/var/cache/bind:/var/cache/bind \
ventz/bind
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ventz
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