$TTL 3d
@			IN SOA 	localhost. root.localhost. (
				1 	; serial
				3h	; refresh 
				1h	; retry 
				1w	; expire 
				1h )	; negative caching-ttl 
; domain localhost
			IN NS		localhost.
; IPv4
			IN A		127.0.0.1
; IPv6
			IN AAAA		::1