named.conf.options.erb

options {
	directory "/var/cache/bind";

	// If there is a firewall between you and nameservers you want
	// to talk to, you may need to fix the firewall to allow multiple
	// ports to talk.  See http://www.kb.cert.org/vuls/id/800113

	// If your ISP provided one or more IP addresses for stable.
	// nameservers, you probably want to use them as forwarders...
	// Uncomment the following block, and insert the addresses replacing.
	// the all-0's placeholder.

<% if @forwarders.size == 0 then -%>
    // forwarders {
	// 	0.0.0.0;
	// };
<% else -%>
    forwarders {
    <% @forwarders.each do |forwarder| -%>
      <%= forwarder -%>;
    <% end -%>};
<% end -%>

<% if @listen_on.size == 0 then -%>
    listen-on { any; };
<% else -%>
    listen-on {
    <% @listen_on.each do |ipv4_addr| -%>
      <%= ipv4_addr -%>;
    <% end -%>};
<% end -%>

<% if @listen_on_port -%>
    port <%= @listen_on_port %>;
<% end -%>

<% if @allow_recursion.size != 0 then -%>
    allow-recursion {
    <% @allow_recursion.each do |recursion| -%>
	<%= recursion -%>;
    <% end -%>
    };
<% end -%>

<% if @allow_query.size != 0 then -%>
    allow-query {
    <% @allow_query.each do |query| -%>
	<%= query -%>;
    <% end -%>
    };
<% end -%>

<% if @check_names_master -%>
check-names master <%= @check_names_master %>;
<% end -%>

<% if @check_names_slave -%>
check-names slave <%= @check_names_slave %>;
<% end -%>

<% if @check_names_response -%>
check-names response <%= @check_names_response %>;
<% end -%>

	//========================================================================
	// If BIND logs error messages about the root key being expired,
	// you will need to update your keys.  See https://www.isc.org/bind-keys
	//========================================================================
	dnssec-validation auto;

	auth-nxdomain no;    # conform to RFC1035
	listen-on-v6 { any; };
};