So, Im the only tech savvy guy in my house unfortunately, and I live in the middle of nowhere, so my modem/ethernet data limit is limited to 10 gigs. My only way of feeding the internet to my computer is through my phones USB, cause thats all I can use to get unlimited data. Is there a possible way to set my antminer S3 to feed off of my computer while connected to my phone, and now to the modem?
You need to set your computer to bridge the connection from the interface that it is using to connect to your phone and the connection to the ethernet interface your Antminer is connected to. In this way, you share your phone's internet connection with your Antminer.
To do bridging, typically you open up whatever network interface settings are available for your OS. Then there is usually an option to create a bridge, and from there, you just follow the instructions.