Provide better errors (AXFR)

[anon]

For a domain I get the following error when trying to AXFR: Unable to AXFR zone 'domein.nl' from remote 'ipv4 address' (resolver): AXFR chunk with a non-zero rcode 9

This is in the logs on the master. This could mean NOTAUTH or no access if I understand it correct (from Habbie).

[peter]

Actually, this error is from a slave. On the master, we could make the errors better too, however. For example: make sure to clarify the difference between 'axfr disabled' and 'not allowed'.