I'm curious if anyone here has renamed a domain before in a production type environment? I was asked to do this and I simply looked at the individual and stated "You want me to flat line our whole domain and re build it? This would require a lot more effort to accomplish..... Fun maybe but still a lot.
Reason? well Lets say you have a PKI infrastructure setup to trust a certain chain and your DC certs are from that CA authority (not your own but someone else provided it to you for the past 6 years). Then one day that CA does not give you any more DC certs because of your FQDN does not meet their requirements (which happen to change =/). Your smart cards have soft certs that chain up to that CA. PKI would be hosed.... I've bumped into an issue like this which resulted in a question to change my domain to what they want and then they would provide me the certs.

Wish I had my own smart cards..
Anyone else have similar days?