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Fragments Anticheat

Fragments Anticheat

The anti-cheat for the Minecraft Fragments project.

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Compatibility

Minecraft: Java Edition

1.21.4

Platforms

Supported environments

Client and server

Tags

Creators

Details

Licensed MIT
Published 7 months ago

Fragments Anticheat

A server-side anti-cheat system for Fabric that ensures all players are using only allowed mods with correct versions.

โœจ Features

  • ๐Ÿ”’ Mod verification: Automatically checks all client mods against a server whitelist
  • โšก Hash-based validation: Uses SHA-256 hashes to guarantee mod integrity
  • ๐Ÿ“ฆ Resource Pack Support: Also checks active resource packs
  • ๐Ÿ‘ฎ OP Bypass: Server operators can use all mods
  • ๐Ÿš€ Performance-optimized: Hashes are cached at startup - no delays when connecting
  • ๐Ÿ›ก๏ธ Robust: Automatic timeouts and comprehensive error handling

๐ŸŽฎ For players

When you join the server, your installed mods are automatically checked. If you are using unauthorized or modified mods, you will be kicked with a list of problematic mods.

โš™๏ธ For server admins

Installation

  1. Download the mod and place it in the mods/ folder
  2. Start the server - an allowed-mods/ folder will be created
  3. Place allowed .jar files in the allowed-mods/ folder
  4. Restart the server - done!

Configuration

  • allowed-mods/: Place all allowed mod JARs here
  • resource-pack-whitelist.txt: Optional - list allowed resource pack names
  • OP players: Are automatically excluded from the check

๐Ÿ“‹ Technical details

  • Platform: Fabric 1.21.4
  • Side: Server & client (required on both sides)
  • Hash algorithm: SHA-256
  • Timeout: 11 seconds for mod list

โš ๏ธ Important

  • Both sides (server & client) require this mod
  • Players without the mod will be kicked after 11 seconds
  • OP players are excluded from the check