We are setting up an internal application which uses Twitter OAuth authentication. This application sits behind a firewall and is not currently exposed to the outside word. As I understand it I can set which port I want to use for the postback URL and allow that through my firewall but I would like to restrict access based on source address as well.
Is there a known Twitter source IP address or range of addresses which I can allow through my firewall to access the postback URL? I don’t really want to allow access from any source address.