Bravo.

This tutorial is very informative and very effective.  It is easier to understand modifying sql tables to bind records and domains.

Suggested Additions

One place where it could be improved is to add mention of the fact that mysql must be enabled for php or the mydnsconfig webpage will fail.  (I fixed mine by making the following adjustment in /etc/php5/apache2/php.ini: extension=mysql.so )

My second comment to help other newbies like myself  would be to add some kind of guide to the syntax of records (ie.  http://www.debianhelp.co.uk/dnsrecords.htm) and test procedures to ensure DNS and resolver are working properly.