Get plugins (like Multiverse) in a normal Minecraft server? [duplicate]
Solution 1:
You can not use plugins with an unmodified server.
You will have to download one of the alternative servers.
You will not have to start over though. You can continue to use the same world files.
I strongly recommend a full back up copy of the current setup before doing any of this. Especially the world folder.
Go download bukkit, spigot, or paper spigot. Make sure to get the latest build for the version you play.
You will put the new server jar in the main folder. You can leave the vanilla server file in the same folder if you like. You will then have to change the starting procedure to use the new server jar file. Start the server fully, then stop it.
This may split the world into 3 world folders. Folder names starting with the world name and ending with "_nether" and "_the_end." This is normal.
This will also give you a new folder named "plugins". Add the plugin jar files to this new folder. With most plugins, you will want to start the server and stop it again. This will create configuration files for your plugins which you can modify so the plugin will run how you want. In the plugins folder, new folders will be created, which are generally named the plugin name. Inside those folders, you will find the configuration files. I recommend using the documentation on the plugin's website to learn how to configure each plugin.
Multiverse, in particular, can be quite complicated to setup. Here is the wiki for Multiverse 2.