NetworkLock

Makes sure players can only join your game servers through your proxy. One jar for the proxy and every server.

Without protection, anyone who finds a game server's address can skip the proxy and join as any player. NetworkLock signs every login on the proxy with a one-time pass, and the game server refuses any login without a valid one. The same jar goes on Velocity or BungeeCord and on every Paper, Spigot, Folia or Sponge server.

Features

• Blocks proxy bypass. Direct connections that skip the proxy are refused.
• Blocks fake players. Logins using another player's name or UUID without a valid pass are refused.
• One-time passes. Each pass works once and only for a short time, so a copied pass is useless.
• Several proxies. Each proxy gets its own key, and a leaked key can be removed on its own.
• Login limit per IP on the proxy.
• Doctor command. /networklock doctor finds setup mistakes, and the console says why a login was refused.
• Update checker and custom kick messages, with renameable commands.

Supported platforms

• Paper and forks: Minecraft 1.8.8 to 26.3.
• Spigot: Minecraft 1.8.8 to 26.3, without ProtocolLib.
• Folia and forks: Minecraft 1.20.1 to 26.3.
• Sponge: Minecraft 1.21.10 to 26.3.
• Velocity: 3.5 and newer, including 4.x.
• BungeeCord and Waterfall: 1.21.
• Java: game servers run it on Java 8 and newer. Proxies need what their proxy software needs.
• Not supported: CraftBukkit. It has no proxy forwarding, so NetworkLock lets nobody in there and says why.

Installation

1. Download NetworkLock.jar from one of the links below.
2. Put the same jar in the plugins folder of your proxy and every game server, and start them once.
3. Copy the proxy's key to trusted-proxies on each game server, set network.server-id, and run /networklock reload.

Full setup: Install guide.

Privacy

Once a day NetworkLock tells kori.my that one more server runs it: an anonymous ID, the plugin version, the platform and whether it is a proxy or a game server. No IP addresses, server names or player data. It also checks GitHub for new versions. Turn them off with metrics.enabled: false and updates.check: false. Details: Privacy Policy.

Links

• Documentation: https://kori.my/docs/networklock/
• Download: GitHub, Modrinth, SpigotMC
• Source code: https://github.com/darkzmaj/NetworkLock
• Support: Discord and https://kori.my

Free and open source under the MIT licence. Made by DarkZmaj for KORI Network.