Installing Cauldron on a Minecraft Server

Overview

Minecraft mods and plugins are both useful ways to customize a server, but standard server software usually makes you choose one side. Forge mods need a modded server and matching client files, while Bukkit-style plugins run server-side and do not require players to install anything.

Cauldron bridges that gap by allowing certain Forge mods and Bukkit plugins to run on the same Minecraft server. It is a practical option when a modpack needs plugin features such as permissions, economy, world editing, or admin tools. The catch is version support: Cauldron is intended for Minecraft 1.6.4 and 1.7.10 only.

For Minecraft 1.7.10 servers, Thermos is often preferred because it includes performance improvements over Cauldron 1.7.10. If your setup supports Thermos, consider that before committing to Cauldron.

Before You Switch to Cauldron

Stop the server before changing the server jar. Cauldron must match the Minecraft and Forge version your server was already using, so do not switch a 1.6.4 setup to 1.7.10 or the other way around unless you are also rebuilding the server for that version.

A fresh world is strongly recommended when changing server software. Existing worlds can work, but switching between modded server types can cause missing blocks, broken entities, or world corruption. Minecraft is very good at remembering mistakes in block form.

Installing Cauldron

1. Open your server control panel.
2. Stop the server.
3. Find the server jar or version selector.
4. Choose the Cauldron version that matches your existing Forge version, either 1.6.4 or 1.7.10.
5. Create a new world if you want the cleanest migration.
6. Save the change.
7. Start the server again.

After startup, check the console for errors. If the server loads normally, Cauldron is active and you can begin adding compatible plugins.

Adding Plugins With the Panel

Some panels include a plugin browser or plugin management section. If yours does, this is usually the fastest installation method.

1. Open your plugins page from the server panel.
2. Search by plugin name, category, description, or status.
3. Open the plugin page for the plugin you want.
4. Check the available plugin versions.
5. Compare the selected version with the plugin's official Bukkit or Spigot listing.
6. Choose the version that supports your Cauldron Minecraft version.
7. Install the plugin.
8. Restart the server.

Once the server finishes restarting, type `pl` in the console. This lists loaded plugins and helps confirm whether the install worked.

Installing Plugins Through FTP

Manual FTP installation is useful when the panel does not have the plugin, or when you need a specific release.

Download the Plugin

Download plugins only from trusted sources such as Bukkit, Spigot, or the author's official page. Before downloading, confirm that the plugin supports your Minecraft version.

On Bukkit, version information is usually under the Files tab. On Spigot, look for the tested Minecraft versions near the top of the resource page. If a plugin does not list support for your Cauldron version, skip it or test it on a backup first.

Upload the Plugin

1. Stop the server from the control panel.
2. Open your file manager or connect with an FTP client.
3. Log in and open the server files.
4. Open the `plugins` folder.
5. Upload the plugin `.jar` file into that folder.
6. Wait for the upload to finish completely.
7. Start the server again.

Use `pl` in the console after restart to check whether the plugin loaded. If it appears in red or does not appear at all, review the console for dependency or version errors.

Useful Plugins to Consider

Common Cauldron server plugins include:

• Essentials
• WorldEdit
• PermissionsEx
• Vault

Always match plugin versions carefully. Older Minecraft versions can be picky, and Cauldron is not the place to gamble with random modern plugin builds.

Common Problems

The Server Crashes After Adding Cauldron

Crashes after switching to Cauldron are often caused by incompatible mods. Known problem mods include MobiusCore, FastCraft, and Opis. If any of these are in the `mods` folder, remove them and try starting the server again.

Also check that the Cauldron version matches the original Forge and Minecraft version. A version mismatch can stop the server before it fully loads.

Plugins Do Not Work

If plugins are installed but not functioning, verify three things:

• The plugin version supports your Cauldron Minecraft version.
• The plugin `.jar` is inside the `plugins` folder, not the `mods` folder.
• Any required dependency plugins are installed.

Many plugins rely on dependencies such as Vault or a permissions plugin. Missing dependencies usually show up clearly in the console during startup.

The Server Gets Stuck While Starting

When mods are added or removed, Forge may pause startup until the change is confirmed. The console often shows missing mod ID messages when this happens.

To continue startup, type this in the console:

`/fml confirm`

Only run that command if you understand what changed. Confirming after removing important mods can permanently remove blocks or items from the world, so keep backups before making major server changes.