hello all, i have centos system remotely. i login there via ssh -X server ip. i am trying run firefox there it`s showing some error like that. Xlib: connection to ":0.0" refused by server Xlib: No protocol specified Xlib: connection to ":0.0" refused by server Xlib: No protocol specified Error: cannot open display: :0.0 any suggestion...it`s urgent. thanks