$TTL 86400	; 1 day
@	IN SOA	ns1.example.com. mymail.example.com. (
				2          ; serial
				10800      ; refresh (3 hours)
				15         ; retry (15 seconds)
				604800     ; expire (1 week)
				10800      ; minimum (3 hours)
				)
			NS	localhost.
$ORIGIN 3.254.10.in-addr.arpa.