yum installed bind 9.9 version,its look like include DLZ.
After named -V indeed show the --with-dlz-mysql = yes
It indicates that the BIND 9.9.4-RedHat-9.9.4 should be to support the ah bind dlz mysql
follow the format set up the database and table for RR, and insert into this table zone data:
So I just wrote inside named.conf or named.rfc1912.zones:
dlz "mysql zone" {
database "mysql {host = hostname dbname = binddb user = username pass = password}
Some other well-known select statement {statements}
";
};
Then systemctl restart named.service. Tip Job for named.service faild.
A look at status: unsupported DLZ database driver 'mysql'. .

What is the reason?
Then try mysqldb mariadb ...... also downloaded bind-sdb, using postgresql database backend tried:
--with-dlz-pgsql = yes
but the are still unable to start named.service,
and status tips "unsupported DLZ database driver 'mysql' "
"unsupported DLZ database driver 'mysql' "
"unsupported DLZ database driver 'mysqldb' "
"unsupported DLZ database driver 'mariadb' "
"unsupported DLZ database driver 'pgsql' "
"unsupported DLZ database driver 'postgresql' "
...
am I missing something?
please help me, I just want to working bind, MySQL/Mariadb on CentOS7.