; NULL Zone File for Ad Servers ; @ IN SOA mylocalmsdns.net. me.myorg.net. ( 131 ; serial number 28800 ; refresh 1800 ; retry 432000 ; expire 18000 ) ; minimum TTL ; ; Zone NS records ; @ NS mylocalmsdns.net. A 127.0.0.1 * IN A 127.0.0.1