$TTL {TTL}
@       IN      SOA     {SERVER}. {ADMMAIL} (
                        {SERIAL}	; serial, todays date + todays serial #
                        {REFRESH}	; refresh, seconds
                        {RETRY}		; retry, seconds
                        {EXPIRE}	; expire, seconds
                        {TTL} )		; minimum, seconds
                NS      {NS1}.
                NS      {NS2}.