Configure Local File to specify DNS zones
On dns1 hadoop1, open the named.conf.local file for editing:
vi /etc/named/named.conf.local
Note:
1. add forward zone as "richmondhill.bigdata.com" and set the file's path is
/etc/named/zones/db.richmondhill.bigdata.com
2. add the correspondent reverse zone as
112.168.192.in-addr.arpa and set the reverse zone file's path to
/etc/named/zones/db.192.168.112
Note: pay attention to the little . in every file, missing . could lead failure