Start Of Authority resource.
TypeValue = 6
The minimum number of seconds to be used for TTL values in RRs.
Time in seconds that a secondary name server is to use the data before refreshing from the primary name server.
How often, in seconds, a secondary name server is to retry after a failure to check for a refresh.
How often, in seconds, a secondary name server is to check for updates from the primary name server.
The version number of the zone file.
The person responsible for this domain name.
Name of the host where the master zone file for this zone resides.