Well, the ip changing is you needing to portforward which can be tricky depending upon the user. However, depending on what you want out of your server, you could look into buying a VPS or a Dedicated Node server. People say Linux is the best for fivem but i say Microsoft Server 2012R2 is the best for any game server (unless you’re running a hosting company, then use ubuntu 18.04 and use a daemon to hook to a web panel like pterodactyl so you can manage ur node ). Anyways, if you need help setting up a fivem server, buy a VPS, VDS or any cloud machine as those are already portforwarded. The trickiest part is setting multiple servers up on them because then it’s reccomended that you buy multiple dedicated ips, i’m gonna stop rambling. Just buy a server from NFOServers, DigitalOcean, or VPSDime and if you need it, i could help you out.