Are you saying you are using the Drupal Multi-site feature for providing Test and Dev sites?
I'm guessing you are not using the multi-site feature where multiple domains can run from the same set of source files, which would mean make one change and it affects all your domains, especially a bad change.
I set up multiple copies of the source code (and a separate database) for each of my dev/test sites then set each up as a subdomain of my domain (subdomains don't require additional registrations), i.e. dev01.mydomain.com, dev02.mydomain.com. With each site having their own copy of the code(or database), changes to dev01 only affect dev01. (this is not using the multi-site feature).
Warren Vail
-----Original Message----- From: support-bounces@drupal.org [mailto:support-bounces@drupal.org] On Behalf Of Roger Sent: Wednesday, August 31, 2011 4:55 PM To: support@drupal.org Subject: [support] Drupal multi sites
We have 5 Drupal installations and are considering a Dev, Test and Prod multisite for each. The Dev and TEst would not be seen by the outside world. Do I have to register a domain name for each multi site.
Cheers Roger -- [ Drupal support list | http://lists.drupal.org/ ]