Some issues have been found in your BIND9 configuration.
Use following solutions to fix them:


[FIXED] No 'pid-file' AND/OR 'session-keyfile' statement found:
-------------------------------------------------------
The directory used by named for runtime data has been moved from the BIND
default location, '/var/run/named/', to a new location '/run/named/'.
As a result, the PID file has been moved from the default location
'/var/run/named/named.pid' to the new location '/run/named/named.pid'.
In addition, the session-key file has been moved to '/run/named/session.key'.
These locations need to be specified by statements in the options section.
To fix this we added:
- 'pid-file  "/run/named/named.pid";' statement into the options section of
  your BIND9 configuration.
- 'session-keyfile  "/run/named/session.key";' statement into the options
  section of your BIND9 configuration.


The config file(s) have been completely fixed.


Written Fixed config file to '/root/preupgrade/cleanconf/etc/named.conf'


For more information, please see the BIND9 Administrator Reference
Manual located in '/usr/share/doc/bind-9.9.4/Bv9ARM.pdf' and 'DNS Servers'
section of CentOS 7 Networking Guide.