$TTL 1000
@ in soa localhost. postmaster.localhost. (
1993050801 ;serial
3600 ;refresh
1800 ;retry
604800 ;expiration
3600 ) ;minimum
a.b.c.d in NS ns1.vix.com.
a.b.c in A 1.2.3.4
a.b in NS ns1.vix.com.
a in NS ns1.vix.com.