Embodiments of the present invention provide a method, system, and computer program product for validating a computer environment. In an embodiment of the invention, a signature file denoting the infrastructure requirements of a computing environment to support a computer program to be installed in the computer environment of multiple different computing devices disposed in multiple different network domains can be loaded. Administrative network privileges to access the multiple different network domains in the computing environment can be acquired. Further, at least one deficiency in the infrastructure requirements corresponding to one of the network domains can be identified and the identified deficiency can be remediated. The identified deficiency can be reported.