@     IN SOA   <%= zone["soa"] %> <%= zone["hostmaster"] %> (
                        <%= zone["serial"] %> ; serial
                        <%= zone["refresh"] %> ; refresh
                        <%= zone["retry"] %> ; retry
                        <%= zone["expire"] %> ; expire
                        <%= zone["minimum"] %>) ; minimum

<% data["network"].each do |name, value| -%>
<% if value["ns"] -%>
  IN NS <%= name %>
<% end -%>
<% end -%>

<% data["network"].each do |name, value| -%>
<% if value["ns"] -%>
<% if value["ipv4"] -%>
<%= name %> A <%= ip(value["ipv4"]) %>
<% end -%>
<% if value["ipv6"] -%>
<%= name %> AAAA <%= ip(value["ipv6"]) %>
<% end -%>
<% end -%>
<% end -%>

<% zone.pointers do |name, host_part| %>
<%= host_part %> PTR <%= name %>.<%= zone["domain"] %>
<% end -%>