Following are the unsupported features in BIND
9.3.2:
The following BIND 9.2.0
options are not supported in BIND 9.3.2:
The allow-v6-synthesis option in /etc/named.conf file
The dnssec-makekeyset command
The dnssec-signkey command
The mail destination ( MD) and mail forwarder (MF) records are obsoleted in BIND 9.3.2. The appropriate mail exchanger
(MX) record must be used in the database
( db) files.
