Memory can be upgraded.
This is only for running Bungeecord Proxy, which allows players to connect via a single IP
Such as myserver.com or myserver.phy.sx.
You must have at least 2 servers, on top of your bungee cord server.
* A Hub/Lobby where players connect to when connecting.
* A server to actually play on, survival, pvp, fraction etc.
* Bungeecord ONLY supports Spigot (bukkit) servers. And does not support modpacks etc.