I want to make a public server on FiveM for everyone. The problem is, I bought a Vserver on Host-Unlimited. I tried to figure out how it works, but I don’t get what type of key I need for the server on this site: https://keymaster.fivem.net
So I made a key for all things you can choose, and nothing works. The second thing is the .cfg file. I changed the endpoint_add_tcp and endpoint_add_udp to the server IP. But when I launch the server it shows this Error in my start.bat: Could not bind on 91.xxx.xxx.xxx:30120 - is this address valid and not already in use?
Does someone knows how it works? please reply with your answer! thanks at least! 
Don’t bind to your specific ip, just bind to 0.0.0.0
ok, I changed it. But it still does not show up in the FiveM server list, what could be the problem? I can only join with localhost. that’s all. Thanks for Help!
Make sure you have port forward the specified Port. And allowed it through the firewall.
oh thanks! now I can make it 