Packet Auth

Authorization system for servers

8.6K Downloads

bukkitbungeecordfabricfoliapaperpurpurquiltspigotvelocitywaterfalltechnologyutility

Rent Server with this Mod

Screenshots

About this Mod

Packet Auth

Packet Auth is a project that provides additional security for your server by authenticating players with a token sent via a custom plugin message.

Features

Secure authentication with custom plugin messages
Customizable configuration options

Enjoy your secure server with Packet Auth!

Available Versions

Packet Auth 1.6.4 for 1.20.5 - 1.21.5release

MC 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5fabric, quilt

May 15, 2025

Packet Auth 1.6.4release

MC 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5bukkit, bungeecord, folia, paper, purpur, spigot, velocity, waterfall

April 15, 2024

Packet Auth 1.6.4 for 1.20.3 - 1.20.4release

MC 1.20.3, 1.20.4fabric, quilt

April 15, 2024

Packet Auth 1.6.4 for 1.20.2release

MC 1.20.2fabric, quilt

April 15, 2024

Packet Auth 1.6.4 for 1.20 - 1.20.1release

MC 1.20, 1.20.1fabric, quilt

April 15, 2024

How to Install Packet Auth on Your Server

Order Server

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

Set bukkit Loader

In the panel under "Egg", select the bukkit loader and matching Minecraft version (1.21.5).

Install Mod

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

Compatibility

Mod Loaders

bukkitbungeecordfabricfoliapaperpurpurquiltspigotvelocitywaterfall

Minecraft Versions

1.21.5, 1.21.4, 1.21.3 (+18 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Packet Auth server crashes on startup – what to do?

Most common cause: wrong bukkit 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 (1.21.5). You can switch loaders with one click in the panel.

Is Packet Auth compatible with bukkit and bungeecord and fabric and folia and paper and purpur and quilt and spigot and velocity and waterfall?

Packet Auth officially supports bukkit, bungeecord, fabric, folia, paper, purpur, quilt, spigot, velocity, waterfall for Minecraft 1.21.5, 1.21.4, 1.21.3. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Packet Auth – how to optimize performance?

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