Installing a Custom Core

Quick guide for installing a custom core on a Minecraft server.

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First, you should decide which core you would like to install. Among the most popular, we can recommend PaperMC, CraftBukkit, Mohist, and Fabric. In this guide, we'll show you how to install PaperMC as an example.

Downloading the Core

Go to the PaperMC website, click on the "Downloads" button, then click on "Paper" and "Paper 1.21.1" (instead of 1.21.1, there could be any other, newer version)

Uploading the Core to the Server

To upload the core, you need to go to the server control panel, then to "files," where you can use the "upload" button or simply drag and drop the server core file into the browser window. After that, delete the old core (server.jar) and rename the new one to server.jar.

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You can also change the name of the file that will be executed by changing the value in the "startup parameters" using the "Server Jar File" option.

Checking Core Functionality on the Server

After installing the core, you need to start the server to ensure it's working properly.