I'm running a two-node, Server 2003 Active Directory environment. One of the Servers is past its prime, the other was a test box we were using to try integrating eDirectory.
I was able to purchase two new Servers to host my AD so last week I set myself to the task of accomplishing this.
I put the new Servers in the rack. I promoted the first one to Domain Controller, so now I have three DC's in the environment. I turned on WINS and DNS and let that 'dust' settle for a day.
The next day I went to demote the older of the two original DC's. I was presented with a warning that the Global Catalogue was still hosted by this Server. Silly me, I thought. I had remembered to transfer the FSMO roles off that box but forgot about the GC. So, I enabled Global Catalogue on the new DC and let that sit for the day.
The next day I turned off GC on the old Server, waited about 90 minutes then proceded to demote. Almost immediately people started calling our Help Desk stating they couldn't log in - bummer...
In futzing around on Google MSKB and here, as well as reading what I could find on TechNet and my trusty W2K3 Server Admin guide, I figured out the why of it - there is no entry in DNS for the Global Catalogue. What I haven't been able to find is anything informative enough to show me how to either manually create the entry or somehow force it to automatically occur.
Oh, and I can't just look at the old Server because I brought the second new one online and gave it the same name and IP addy as the old box. So, I still have three DC's but I don't want to demote the "test" box until I get the login problem resolved.
Thanks for any detailed, step-by-step hints you can provide!
Daniel M. Hoyt