
SHAuth
A more advanced way to protect your server.
Screenshots


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.

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

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
How to Install SHAuth on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
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
Minecraft Versions
1.21.11
Server-side
~ OptionalRecommended 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.
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Rent Modded Server
Install SHAuth with just one click on your server.
Details
- License
- Creative Commons Attribution No Derivatives 4.0 International
- Server-side
- Optional