Frequently Asked Questions. The package name changed because the extensions were rewritten to not be msql-specific. The latest API allows admins to drop in support for their own databases. For bind 4.9.x users, it also provides a means of dynamically updating your nameserver tables. The latest versions are available here .
Documentation is a glorious thing.
Cherish it always. You can, but it will not write changed entries to the database. There were too many issues dealing with security and validity of the SQL database to make writing to the database practical. You can only have on SOA record per zone. If so, then you have duplicates of every entry in your zone not just the SOA records.