Two sites running parallel one in production and one in development?

what is steps for one site in development and one in production and both run parallel

@Maheshwari_Bhavesh: to accomplish it within the boundaries of a single host, you will have to set up two bench instances on your physical or virtual server (depending on what your setup is).

The easier (and more manageable, from DevOps/Development process stand-point) way of doing it is to separate your development and production sites by different hosts