Hey guys, I have currently developed software (in PHP) that will be used as a service. The issue I'm facing is that the guy I'm working for is the owner but he will provide the software to multiple distributors offering the same software as SaaS. So i guess its like a chain of events? The clients pays the distributor, the distributor pays the owner. What i would like to know is - can I implement a simple way to determine whether the DISTRIBUTERS are the only ones using this service e.g they aren't doing the dodgy and giving it to a mate. I have thought about this, maybe adding a sort of IP address checker which upon activation stores the server IP address in the "main database". What is the best way to address this issue? I know licensing only goes so far and is easy to get around.