My setup is as follows:
WP-MU 3.4.2 installed under my Primary domain (we'll call it primary.com). MU works as it should, child blogs are installed in subdomains (ie. secondary.primary.com) created directly in WP.
I have the Domain Mapping plugin set up and all appears to be working as it should regarding the control panels- I even got it to map secondary.com and secondary.primary.com (with secondary.com set as the primary domain for that blog), however, when I go to access secondary.com in another browser or one another computer I can't pull up the site. All I get it is a time-out.
This leads me to believe that my Domain settings need to be tweaked in order to get secondary.com to direct to the Primary Domain because That seems to be where the ball is getting dropped.
Hosting and Domain Names are all registered through Netfirms. I have contacted them for help regarding this but other than answering a few of my general questions about how their domain names work they could not help me set up Domain Mapping since this 'is a WordPress issue'. Sigh.
From what I did understand after my conversation with Netfirms help is that if the IP address in the A Name of both primary.com and secondary.com are the same then they should both direct to the same place. This makes sense, however given that the settings are all as follows, I don't understand what is wrong...
primary.com has an A Name IP of --.--.---.138
secondary.com has --.--.---.138 (the same)
when I ping primary.com (which does pull up my main blog) I also get that same IP, --.--.---.138
So logically anyway, it should work right?
Now one thing that bothers me the more I think about it is that when I log into the cPanel (or whatever it is we are using now) it lists my IP as --.--.---.154
When I spoke to the help tech she informed me that Netfirms is a shared server but this .154 IP was the IP for 'my' site... however this make no sense given that my pingback reports .138 as my IP
Does anyone have any insight as to what is going on here and how I could possibly tweak my DNS settings to make this work?