$ORIGIN local.
$TTL 86400
@         IN  SOA  ns1.local.  mail.address.with.stop.as.delimiter. (
              2022081801  ; serial
              21600       ; refresh after 6 hours
              3600        ; retry after 1 hour
              604800      ; expire after 1 week
              86400 )     ; minimum TTL of 1 day
;
;
          IN  NS     ns1.local.
ns1       IN  A      192.168.10.1
web       IN  A      192.168.10.2
mail      IN  A      192.168.10.3
client    IN  A      192.168.10.4