I'm quite confused and my webhost is also confused. Here's my situation:
I'm going to call my primary WPMU domain aaa.com. My first mapped domain I'll call bbb.com. When I add new sites, by default they are all a subdomain of aaa.com.
1) Is it possible to change the default domain for the creation of new sites to say bbb.com or ccc.com, etc.?
2) Whether or not that is possible, if a new site is 1.aaa.com and I want to map it to 1.bbb.com, I've read that I need to create a subdomain and crate a CNAME to make that happen. The questions I have are 1) am I creating subdomains in CPanel for both 1.aaa.com and 1.bbb.com, or just one or the other; 2) Which DNS zone should I be adding the CNAME to; 3) If I need to change the CNAME for 1.aaa.com to point to 1.bbb.com, is there anything that needs to be changed to 1.bbb.com?
Thanks very much for your time,