If you follow the NetBSD guide '/etc/rc.d/named start'
does not work because named expects its configuration file
in /etc/named.conf while it is in /etc/namedb/named.conf

What is the rationale for that?

Is /etc/namedb/named.conf an example that we are supposed
to modify and put in /etc?
Do I have to 'ln -s /etc/namedb/named.conf /etc/named.conf'?
Is it better to put 'named_flags="-c /etc/namedb/named.conf"
in /etc/rc.conf?

Regards,
Thierry.