I am trying to set up IPS-HFW5231E-Z12E using only NVR and display. Would like to keep my cameras separate from Internet and my computer. With the NVR and display I have so far been unable to find the place for setting up values for shutter, gain, anti-flickering etc. The 144 page Dahua Network Camera Web 3.0 Operation Manual starts with establishing a network connection and even worse doing it with IE. Think the manual does not take up using only a NVR or other browsers than IE. Is it possible to set up and use this camera with only a NVR? If not is there a way to use a browser (not IE!) and Linux? Thanks.