Handshaker-rebuilt
by djatlasv
Handshaker-rebuilt is a client-side fork of the Hand-shaker mod that adds extra steps for the Osmium server, and the card below describes it.
What it does
Handshaker-rebuilt is a fork of the Hand-shaker mod with extra security steps for the Osmium server. It is written specifically for Osmium, and the fork aims to give the server more information about the modlist a player runs. The client sends a hashed MAC address, so the server can help with alt-banning on Wi-Fi connections without ever receiving the real address. It is installed on the player's side alone, so servers need nothing. Files are published for Fabric and NeoForge for 1.21.11 only, under the MIT License, and the source code is public.
Key features
Hashed MAC address
The client shares a hashed form of its MAC address with the server, so the real address never leaves the player's machine.
Osmium-specific handshake
The extra security steps are built for the Osmium server, which receives the modlist details as part of the handshake.
Alt-banning support
Hashed addresses let the server match a connection against banned accounts, which helps with alt-banning over Wi-Fi.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Handshaker-rebuilt need Fabric API to run?
In the catalog
Handshaker-rebuilt is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
This is a fork of Hand-shaker meant to give more infomation then just the modlist. This is specificly built for Osmium. It'll share a hashed mac address to the server to have alt-banning more effective then the wifi itself. The server never sees the actuall mac-adress.
Official listing
- Modrinth page
- modrinth.com/mod/handshaker-rebuilt
- Owner
- djatlasv
- Published
- 2026-03-17
- Updated on Modrinth
- 2026-03-17
- Facts verified
- 2026-10-15