Se establece la primera versión estable de la receta de DNS basada en el software bind para Kit de Servicios. Sus tareas permiten automatizar los procesos de: instalación y configuración de un servidor de nombres bind; actualización de zona mediante incorporación de registros de recursos de tipo NS, MX, A, AAAA y CNAME; y desinstalación del servicio. El diseño inicial de esta receta fue apoyado en los productos liberados por René Moser.

added optional global adjustment of allow-query

did not work as expected for bind config checks

add listen option defaulting to any

Add support for zones that are forwarded to another nameserver

whether to be "forward only" or "forward first".

Set recursion to a safe default of "no"

The previous default configuration configured the server to allow recursion for
the public internet which - because of its security implications - is
[a bad idea](http://dns.measurement-factory.com/surveys/openresolvers.html).

So its better to deactivate recursion by default and let the admin decide based
on his use case (.e.g. acting as internal resolver/forwarder) if it should be
allowed.

Additionally it should be noted that "bind_config_recursion" takes literal
strings like "yes" / "no" as parameters. When the quotation marks are ommited
the YAML parser read a boolean value which is written as "True"/"False" when
applying the template. But named expects "yes" / "no" in its confugration
files.

Change-UUID: 9ecd9627a1b1490899cd54f608a46050

Only use forwarders if any are defined

Conflicts:
	defaults/main.yml

Recursion setting

Fixed problem with apparmor and selinux to dynamically update files in /etc

Add allow-update block

Variables were not handled as expected, not as role variables. We
had to make sure ansible sees the this role as role.