RTCfan

Hello! I am a long time fan of RCT, and I play openRCT from my MacBook on my University's wifi. I would like to play cooperatively with a friend out of state, but I have ZERO knowledge of servers or how they work. Can my friend simply punch in my IP address to join my game? How can I start a server? I would be beyond grateful if anyone is willing to take the time to explain to me 🙂 thank you!!