1. A computer network for providing a test environment, the computer network comprising: at least one simulated network for simulating at least a portion of an infrastructure of a production network, wherein the at least one simulated network comprises an authentication server, a file server, and a database server; a network simulation module in communication with the at least one simulated network, the network simulation module for simulating at least one parameter of the production network; a plurality of client simulation computers in communication with the at least one simulated network via the network simulation module, wherein each of the plurality of client simulation computers is configured to replicate at least one of a hardware configuration and a software configuration of a production network client; and an access server configured to provide secure access to at least one of the plurality of client simulation computers from at least one computer remotely located with respect to the computer network.