Compatibility
Minecraft: Java Edition
1.21.1
Platforms
Supported environments
Dedicated servers only
Tags
Creators
Details
Licensed MIT
Published last week
Updated 2 months ago
NefAuth - Simple Login & Register for NeoForge
A lightweight, secure, and server-only authentication mod designed for NeoForge 1.21.1.
Perfect for large modpacks like All the Mods (ATM) running in offline mode (online-mode=false) to prevent unauthorized access and account theft.
Features
- Server-Only: Players do not need to install this mod on their clients. Just drop it into the server's
modsfolder. - Secure Hashing: Password protection using secure hashing algorithms (no plain-text passwords stored).
- Session Management: Prevents players from moving, chatting, or executing commands before logging in.
- NeoForge Native: Built specifically for NeoForge 1.21.1, ensuring maximum compatibility without the need for buggy hybrid server jars (like Arclight/Mohist).
Commands
/register <password> <confirmPassword>- Register a new account./login <password>- Log into your account./changepassword <oldPassword> <newPassword>- Change your current password.
Installation & Setup
- Download the
.jarfile for NeoForge 1.21.1. - Place it into your server's
modsdirectory. - Restart the server.
Passwords are saved in the usernamecache.json file.


