Sample master.localhost zone file

This file supplied with the standard distributions (this file is typically called localhost.zone in BIND distributions) is a model of brevity and very cryptic! Comments have been added to clarify the definitions. This file should not need modification.

The master.localhost file maps the name 'localhost' to the local or loopback address (127.0.0.1). It is used by many system programs.

$TTL	86400 ; 24 hours could have been written as 24h
$ORIGIN localhost.
; line below = localhost 1D IN SOA localhost root.localhost
@  1D  IN	 SOA @	root (
			      2002022401 ; serial
			      3H ; refresh
			      15 ; retry
			      1w ; expire
			      3h ; minimum
			     )
@  1D  IN  NS @ 
   1D  IN  A  127.0.0.1