Just the basics, the obligatory SOA record, and a record that maps
127.0.0.1 to localhost. Both are required. No more should be in
this file. It will probably never need to be updated, unless your
nameserver or hostmaster address changes.
$TTL 3D
@ IN SOA land-5.com. root.land-5.com. (
199609203 ; Serial
28800 ; Refresh
7200 ; Retry
604800 ; Expire
86400) ; Minimum TTL
NS land-5.com.
1 PTR localhost.
If you look at a random BIND installation you will probably find
that the $TTL line is missing as it is here. It was not used
before, and only version 8.2 of BIND has started to warn about its
absence. BIND 9 requires the $TTL.