How to Setup a Minecraft Java Server

01Software Engine Selection

Choosing the right server jar determines performance and modding capabilities. Standard Vanilla servers have limited performance optimizations. Instead, we configure optimized forks:

For upstream details and changelogs, consult the official PaperMC Documentation .

02Java Version Selection Check

Minecraft versions require matching Java Development Kit (JDK) versions to run. Attempting to start a modern server jar with an older JDK causes startup crashes.

03Uploading Plugins via SFTP

To install mods or plugins, you must upload files to the server container filesystem. While small files can be uploaded via the browser file manager, larger directories are best managed over SFTP:

1. Locate your **SFTP Address** and **Username** under the "Settings" tab in the Pterodactyl control panel.
2. Open an SFTP client (such as FileZilla or WinSCP).
3. Connect using your panel credentials. Leave the password blank if using SSH key authorization, or enter your panel login password.
4. Upload your .jar plugin files directly into the /plugins folder.

04EULA Acceptance & Startup Log Verification

Mojang requires all server administrators to accept the End User License Agreement (EULA) before the process can initialize successfully.

[Server thread/INFO]: Loading properties
[Server thread/WARN]: Failed to load eula.txt
[Server thread/INFO]: You need to agree to the EULA in order to run the server. Go to eula.txt for more info.

To resolve this blocker, open the eula.txt file in your Pterodactyl File Manager and change the line from eula=false to eula=true. Click **Save** and restart your container.