$ORIGIN .
$TTL 86400	; 1 day
dhcp.site1.example.com	IN SOA	ns1.example.com. hostmaster.example.com. (
				2002022408 ; serial
				10800      ; refresh (3 hours)
				15         ; retry (15 seconds)
				604800     ; expire (1 week)
				10800      ; minimum (3 hours)
				)
$TTL 600	; 10 minutes
			NS	ns1.example.com.
$ORIGIN dhcp.site1.example.com.
$TTL 300	; 5 minutes
betaclean-lt1		A	10.15.100.55
			TXT	"31b93fc9347fc03ee8b440163a6886baf2"