Please note this is not essential. If your test server has the same server idea as production it will not affect your production install and is mainly used by support to help us distinguish between your servers.

If you would like to change it, you'll need to acquire a new server ID for your test environment:

  1. install a new instance of Confluence (do not use the automatic installer, go with the zip file) and make sure it's pointing to a new empty home directory .
  2. Start the confluence that have just been installed, this will create a confluence.cfg.xml in the home directory you specified. Look in this file for the line:
    <property name="confluence.setup.server.id">BIBE-YA0Z-8EK6-SS9C</property>
    
  3. For the test server, Go to the <<Confluence-Home>>/confluence.cfg.xml file and replace the existing server ID with the one you've just obtained in the new installation of Confluence.
  4. Start up the test server, go to Administration > License Details and update the license to your developer license that you generate from https://my.atlassian.com.