ProperProxyProtocol

Adds proxy protocol capabilities to your Minecraft server (that actually work). Also fixes TCPShield for modded servers.

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541 Downloads
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Screenshots

Banner Image

About this Mod

Overview

This mod adds Proxy Protocol (or HAProxy) support to your Minecraft server. It also fixes TCPShield connections on your server!

FAQ

Q: Does this affect performance?

A (Simple): No.

A (Full): No, this mod only reads connection packets and checks if they are using an HAProxy header. There is no hard operations happening. If anything, this should speed up logins as we patch players loading in to the world. We do this because the HAProxy handler handles connections on a different thread than the main server thread.

Q: Does this fix TCPShield connections?

A (Simple): Yes!

A (Full): Yes! You can actually turn proxy-protocol to enabled in your TCPShield panel and then your players' IPs will actually be parsed correctly by your server.

Currently Supported

Platforms

  • NeoForge
  • Fabric
  • Forge

Versions

  • 1.21.11
  • 1.21.1
  • 1.20.1

Requirements

0 requirements!

Available Versions

1.1.0 (neoforge) for Minecraft 1.20.1release
MC 1.20.1neoforge
May 27, 2026
1.1.0 (neoforge) for Minecraft 1.21.1release
MC 1.21.1neoforge
May 27, 2026
1.1.0 (fabric) for Minecraft 1.21.1release
MC 1.21.1fabric
May 27, 2026
1.1.0 (forge) for Minecraft 1.20.1release
MC 1.20.1forge
May 27, 2026
1.1.0 (fabric) for Minecraft 1.21.11release
MC 1.21.11fabric
May 27, 2026

How to Install ProperProxyProtocol on Your Server

1

Order Server

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

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

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

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+16 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

ProperProxyProtocol 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 ProperProxyProtocol compatible with fabric and forge and neoforge?

ProperProxyProtocol officially supports fabric, forge, neoforge for Minecraft 1.21.11, 1.21.10, 1.21.9. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with ProperProxyProtocol – how to optimize performance?

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

Rent Modded Server

Install ProperProxyProtocol with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+9 more