$TTL 1000
@		in	soa	localhost. postmaster.localhost. (
				1993050801	;serial
				3600		;refresh
				1800		;retry
				604800		;expiration
				3600 )		;minimum
a.b.c		in	ns	b
a.a.b.c		in	a	10.0.0.1
b		in	a	10.0.0.2