> The last thing you want is to get flagged as a bot or VPN abuser and banned; Valve customer support isn't exactly known for being particularly understanding or responsive. Personally I would just load up a throwaway Steam account with a few games and use that.
I wonder if you could set up the tunnel going the other way so that the EC2 instance goes through your home network to access the internet?
I wonder if you could set up the tunnel going the other way so that the EC2 instance goes through your home network to access the internet?