SHAuth

SHAuth

A more advanced way to protect your server.

by
44 Downloads
fabricmanagementutility
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Screenshots

Add Server Screen
Invalid Auth Key

About this Mod

Usage

This mod provides a more advanced way to protect your server. It is used on servers that have online-mode to false in order to prevent account stealing and player coordinate leakage.

How it works

When a player tries to connect to a server, SHAuth contacts the server and verifies that the connecting player provides a valid key tied to their username. If the key is valid, the connection proceeds, otherwise the player is kicked.

Kick Message

What it safeguards against

  • In servers that have online-mode to false, anyone can pick any username and impersonate another player. SHAuth prevents attackers from joining as someone else.
  • Most log-in systems require you to first connect to the server and then log-in. This process allows an attacker to access information like the player's cordinates, which can be frustrating in competitive servers. However, SHAuth requires valid credentials before granting access.

How to use it

  1. An operator first creates a key tied to your account by doing /shauth authorize .
  2. The player enters the key in in the server's properties menu under the server address.

Add Server Screen

Commands

  • /shauth authorize - Assigns a key to a player and authorizes them.
  • /shauth unauthorize - Revokes authorization for a player.
  • /shauth reset - Resets the key associated with a player (useful if the key gets leaked).
  • /shauth list - Displays authorized users.

Available Versions

SHAuth 1.1.0-RELEASErelease
MC 1.21.11fabric
December 30, 2025

How to Install SHAuth on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "SHAuth". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11

Server-side

~ Optional

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

SHAuth server crashes on startup – what to do?

Most common cause: wrong fabric 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 (1.21.11). You can switch loaders with one click in the panel.

Is SHAuth compatible with fabric?

SHAuth officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with SHAuth – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if SHAuth 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.

Rent Modded Server

Install SHAuth with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
Creative Commons Attribution No Derivatives 4.0 International
Server-side
Optional

Supported Versions

1.21.11