is it possible to intercept a dns lookup on a dmz and direct it to an internal server.
I have a wireless controller for guest access on a dmz. to authenticate, the wireless controller intercepts the first get syn and redirects it to a guest manager on the inside. I dont have a dns server on the dmz and dont want to use the inside dns server. the ISP will not allow a private address on their dns server so I need a way of redirecting the first get syn to the guest manager for authentication. once authenticated the traffic will use the ISP dns for web traffic.
I'd appreciate any help
