Hi we had make proxy server for our render farm Because we don’t want to expose all the farm to internet, it should forward only sites which are needed for Shotgrid. Maybe somebody can give me a list of them?? 
At this moment Deadline Shotgun plugin works fine it can login into SG, but when it try to upload some media i get error like:
“Event Error (OnJobFinished): URLError : <urlopen error Tunnel connection failed: 403 Forbidden>”