So as the title says, I need to promote a standalone Win2008R2 server to a Domain Controller, and I don't a DNS Server (I think), as there will be no clients connected to the domain, it will be only used for Remote Desktop Services. Yes, I know, it's considered bad practice to install other roles on the DC, but in this case, it's necessary.
Do I need to install the DNS Server, and if I do, how to make it as transparent as possible?
EDIT: Seems that I need to install the DNS Server, so I can I configure it not to mess up my entire domain?
The server I need to promote is
rdc.mydomain.com, and it has an A entry to it's IP in the current DNS, while other servers under
mydomain.com are running Linux and don't need to know anything about this Windows box. The domain uses a third-party DNS and all edits and updates need to be done via a separate web page, our servers don't have write/update access.