I also have this problem!
CONFIGURATION ERROR:
14:05:57 writeable file 'slaves/0.168.192.in-addr-arpa.zone': already in use: /tmp/named.conf:46
14:05:57 writeable file 'slaves/1.168.192.in-addr.arpa.zone': already in use: /tmp/named.conf:51
14:05:57 writeable file 'slaves/cpkio.local.zone': already in use: /tmp/named.conf:56
14:05:57 DNS server started with old configuration
These zones are not resolved, nslookup the answer “Non-existent domain”
Please help,
I still come back to version 3.6.0