LoginDaddy

A Fabric mod for private friend servers. Requires players to have the mod installed on their client, be on the whitelist and authenticate with a password before they can play.

How it works

1. Player connects → sent to an invisible limbo dimension
2. Server checks if the client has LoginDaddy installed (handshake). No mod = kicked
3. Server checks if the player is whitelisted. Not whitelisted = kicked
4. Player registers or logs in with a password
5. Player is teleported back to where they joined from

Join/leave messages and tab list are hidden until authentication is complete.

Requirements

• Minecraft 1.21.11
• Fabric Loader 0.18.4+
• Fabric API

Setup

Server

1. Drop the mod jar into your mods/ folder
2. Start the server once to generate logindaddy.properties
3. Edit logindaddy.properties with your database credentials
4. Add players to the whitelist (see commands below)

Client

Players need the same mod jar in their mods/ folder. The client side only handles the handshake — no configuration needed.

Configuration

logindaddy.properties is generated in the server root on first launch.

# sqlite (local file) or mysql
database.type=sqlite

# MySQL only — ignored if using sqlite
mysql.host=localhost
mysql.port=3306
mysql.database=logindaddy
mysql.username=root
mysql.password=

⚠️ Never commit "logindaddy.properties" to version control.

It contains your database credentials.

Commands

All admin commands require the server console (no in-game access).

Command	Description
logindaddy whitelist add <username>	Add a player to the whitelist
logindaddy whitelist remove <username>	Remove a player from the whitelist
resetpassword <username> <newpassword>	Reset a player's password

Player commands (in-game, only usable during authentication):

Command	Description
/register <password>	Register with a password (first time only)
/login <password>	Log in with your password
/changepassword <old> <new>	Change your password (must be logged in)

License

MIT