$TTL 604800 @ IN SOA ns.local.athena7.eu. admin.athena7.eu. ( 2019042901 ; Serial number as YYYYmmdd## convention 43200 ; Refresh interval 7200 ; Retry interval 2419200 ; Expire Interval 86400 ; Negative Cache TTL ) ; Name servers IN NS ns.local.athena7.eu. ; Hosts local.athena7.eu. IN A 10.167.42.1 ns.local.athena7.eu. IN A 10.167.42.1 ; Services