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.
@ 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. I would recommend that you put the $TTL
in line in zone
files as you discover that they are missing.