FerrumWhiteList
FerrumWhiteList is a server-side Minecraft mod that adds nickname-based whitelist access. Useful when the default whitelist is not enough. Commands: /ferrum whitelist help, on, off, add, remove, list.
About this Mod
FerrumWhiteList is a simple server-side whitelist mod created for Minecraft servers that need nickname-based access control.
It was made for servers where the default Minecraft whitelist is not suitable, especially offline-mode servers. Instead of relying only on account UUIDs, FerrumWhiteList checks player nicknames directly.
The whitelist is case-sensitive, so names like MAYDEX22 and maydex22 are treated as different players.
Commands:
/ferrum whitelist help - Shows the command list
/ferrum whitelist on - Enables the whitelist
/ferrum whitelist off - Disables the whitelist
/ferrum whitelist add
/ferrum whitelist remove
/ferrum whitelist list - Shows all whitelisted players
Config:
config/ferrum-whitelist.json
This mod is server-side only. Players do not need to install it on their client.
Available Versions
How to Install FerrumWhiteList on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "FerrumWhiteList". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
FerrumWhiteList server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is FerrumWhiteList compatible with forge and neoforge?
FerrumWhiteList officially supports forge, neoforge for Minecraft 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with FerrumWhiteList – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if FerrumWhiteList consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install FerrumWhiteList with just one click on your server.