Port 53 is used for DNS and it almost seems as if you are tryng to set up a server that may be accessible from outside your home.
If that's the case, please understand that Residential installations cannot be accessed from outside your local LAN because the satellite network is protected behind a double-NAT. Only Business installations may be accessed this way.
Disregard if you're merely trying to set something up that's accessed within your local LAN.
It's been a while since we last heard from you, so we will close this thread. If you still have concerns, please start a new thread and include a detailed explanation so we can better assist you.