nsd_init_serial: 10000

nsd_soa_block: |
  $TTL    {{ zone.ttl | default(nsd_default_ttl) }}
  $ORIGIN {{ zone.name }}.

  @  IN  SOA  {{ zone.ns | default('ns1.' + zone.name) }}.  {{ zone.contact | default('hostmaster.' + zone.name) }}.  (
    {{ serial }} ; serial
    {{ zone.refresh | default('1d') }} ; refresh
    {{ zone.retry   | default('3m') }} ; retry
    {{ zone.expire  | default('1w') }} ; expire
    {{ zone.minimum | default('3h') }} ; minimum
  )