AuthMeReloaded: The Authentication Plugin Every Server Needs

If you're running a Minecraft server, account security isn't optional. AuthMeReloaded solves a problem that shouldn't exist in the first place: players getting their accounts stolen right under your nose. It locks down authentication so only the real player can log in, blocking imposters before they even load into the world.

What This Plugin Does in Plain English

AuthMeReloaded is a Bukkit/Spigot authentication plugin that forces players to log in before they can do anything on your server. No moving. No typing commands. No accessing inventory. Nothing until they've proven they're who they claim to be.

The core idea is straightforward. A player joins, gets prompted to create or enter a password, and only then can they interact with your world. It's especially important if you run your server in offline mode, where Minecraft's account verification doesn't exist. But it's equally useful for online-mode servers as an extra security layer against compromised accounts and opportunistic griefers.

Version 5.7.0 brought serious improvements to stability and reliability, with fixes to reconnect handling, mail delivery, and concurrent access issues that plagued earlier builds.

Why You'd Want This

Picture this: you build an incredible town with your friends. Someone logs in as another player and starts tearing it apart. By the time you notice, half your work is gone. And this happens on servers without authentication every single day.

AuthMeReloaded prevents that scenario entirely. Here's what actually gets protected:

• Offline-mode servers - where anyone can claim any username. Authentication becomes your only defense.
• Alt accounts and stolen credentials - even if someone knows a player's password, they're locked out if they can't reach the server to brute-force it.
• Account takeover during reconnects - the 5.7.0 release fixed a nasty edge case where a player's entities and mounted vehicles weren't restored reliably after disconnect. Now they're.
• Spam and bot attacks - the built-in AntiBot system kicks players with suspiciously short or long usernames before they flood your server with garbage.

And yes, there's session support. Log in once, stay logged in across reconnects so you're not typing your password constantly. It's a quality-of-life feature that survives actual use, not something that breaks on edge cases.

Setting It Up

Installation is standard Bukkit plugin stuff.

First, download the latest build. The current release (5.7.0) requires Java 17 or higher, which most modern servers already run. If you're still on Java 11, you'll need to update before upgrading from an older AuthMe version.

cd /path/to/server/plugins
wget https://github.com/AuthMe/AuthMeReloaded/releases/download/5.7.0/AuthMe-5.7.0.jar

Drop the JAR in your plugins folder and restart the server. AuthMeReloaded generates a config file automatically on first load.

plugins/AuthMe/config.yml

That config file is where everything lives. Register settings, login delays, email recovery rules, database backend, allowed countries, and hundreds of other options. You don't need to touch most of them. The defaults work fine for a standard server.

Database setup is optional but recommended for larger communities. SQLite ships as the default (no setup required), but you can point it at MySQL if you want accounts synced across multiple servers. The project handles both cleanly without weird workarounds.

Key Features Worth Knowing About

Email recovery that actually works - forget your password? Players can use `/forgot_password` to reset via email. The 5.7.0 release fixed SMTP reliability by moving mail delivery off the main server thread, so emails send asynchronously and don't freeze your game. Previous versions would lock up your server while waiting for SMTP. Not anymore.

Two-factor authentication - enable 2FA and players add an extra security layer. It's not forced on everyone (which would be annoying), but it's available for players who want it.

Country-based access control - whitelist or blacklist entire countries using MaxMind GeoIP data. Someone logging in from a VPN in a blocked country? Kicked. And this is less about security and more about compliance or regional restrictions if your server has those needs.

ForceLogin for admins - admins can force-login as another player via console if they need to investigate something or help someone stuck. It's a backdoor designed for legitimate use, not account hijacking.

Limbo protection - when a player joins, they're stuck in a safe zone (limbo) until authenticated. They can't move out of spawn, can't see other players, can't cause trouble. The 5.7.0 release fixed stale disk limbo data that would accumulate if players quit during the authentication flow. That was eating storage for no reason on some servers.

Tips and Gotchas

Authentication feels smooth if configured right, but there are a few things that catch new admins.

First: test your email settings before going live. The plugin can send recovery emails, but if your SMTP configuration is wrong, frustrated players won't get their password reset links. Set up a test account, try `/forgot_password`, and verify the email arrives. This takes ten minutes and saves hours of player complaints.

Second: the y = 0 teleport bug was real in older versions. Players who got teleported to authenticate sometimes ended up at y = 0 and took fall damage in the void. Version 5.7.0 fixed this, but if you're running an older build, update.

Third: spawning unregistered players in the wrong place. If you allow players to join without registering (which you probably don't), but they're not forced to register either, they can end up spawning somewhere weird. Actually, scratch that, just enable forced registration. It's simpler.

One more thing: concurrent access on SQLite. If your server is small, you probably won't notice. But SQLite can only handle one write at a time. If fifty players try to log in simultaneously (like during a restart), SQLite gets bottlenecked. The 5.7.0 release improved concurrent handling, but if you're planning a bigger community, migrate to MySQL early. It scales properly.

And one tiny note, actually, that only works on 1.20.4+. The newer versions of ProtocolLib that AuthMe uses dropped support for older Minecraft versions. Check your server version if you're running something ancient.

What You Can Customize

Nearly every message is translatable. Player sees "Please register" but you want it in Spanish or Russian? Translations exist for a ton of languages already. If your language isn't supported, create a translation file and submit it to the project. The maintainers have always been responsive about adding community translations (which is genuinely cool).

Commands are translatable too, as of 5.7.0. This is a nice quality-of-life improvement for international servers where players aren't all using English.

If you're building a server with custom branding, you can swap the authentication messages entirely. Instead of "Please log in with /login password", make it say whatever fits your server's vibe. It's all in config.

Alternatives Worth Considering

AuthMeReloaded dominates the space, but alternatives exist. LoginSecurity is simpler if you want a lightweight option (though it's less maintained). MultiLogin handles multi-server authentication if you're running a network and want one account across servers. But for single-server setups and communities that want feature-rich authentication with email recovery and 2FA built in, AuthMeReloaded is the default for a reason: it works, it's stable, and the developers actually maintain it.

If you're building a server and want to add custom skins to your world, check out the Minecraft Skin Creator. Or if you want to customize your MOTD, the Minecraft MOTD Creator can help you generate a compelling server description that shows up in the server list.