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xAuth v2.4.x
Authentication plugin for bukkit powered servers


xAuth is a second-factor authentication plugin that can be used to secure player accounts on your server. As the plugin has been enhanced over time, the direction and main purpose have expanded to new possibilities. Let's say you run a community page. With xAuth, players can authenticate using their forum accounts or using a web-driven account management system. It is also possible to get the credentials from a foreign database.

News and Updates

Please checkout News and upcoming changes for news and update notices.


The basic idea of this protection plugin is allowing players to register an account based on their player name and a supplied password and optionally their email-address. When a registered player connects to the server, that player will be prompted to authenticate his or herself by logging in. If and only if a valid password is supplied, they will regain full control of their account until their session expires.

Permissions (READ ME)

This plugin has the ability to block almost any action (including command execution) for guests and registered xauth players. It also does not use negated permissions in order to not interfere with existing plugins. Permissions are "allowed" or "restricted".

In order to restrict certain actions executed by registered xauth players you need to restrict them since xauth players are trusted. This is different from guests since the default for guests is always "restrict" if not set since a guest is an unknown state. Guest nodes can also only be set via configuration and have the last say even if you might have the right to execute any command.

Please keep in mind in order to block admin commands you need to restrict them via xauth.restrict.player.command.xauth.* or add each command to a group.

This might be confusing at first but has its cons since you always can see if a permission is restricted or allowed via permission node and not via bullet point. More details can be found on page Permission-System


  • Before registering/logging in, players can't:
    • Chat, execute commands, interact with objects (like levers or chests), move or pickup items
    • Break or place blocks
    • Receive or give damage, be targeted (followed) by hostile mobs
  • Inventory and location protection
  • In-depth setting and message configuration
  • Persistent login session through server restarts
  • Player name filter and password complexity configuration
  • Kick non-logged in (but registered) players after a configureable amount of time
  • Fine graded Permission System that also allows you to block interactions or commands
  • Permissions support (PermissionsEx, Bukkit, GroupManager)
  • Kick or temporarily lockout the IP address of a player who fials to log in after a configureable amount of tries
  • Custom, highly secure password hashing
  • Authenticate yourself with /login <password>
  • H2 / mySQL Database storage supported
  • Authentication over URL (AuthURL) allows for connection to forum or website databases
  • Auto-Updater (thanks to Gravity)


Checkout the News & Upcoming-Changes page for details.


The Wiki is located on github.
Please visit the http://bukkit.luricos.de/ress/icons/github_16.png Github Project-Page and click on Wiki


All credits goes to CypherX from bukkit forums who created this plugin. Thanks for your work and long time support!

The old bukkit-thread can be found here

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  • Avatar of maxibondarenko maxibondarenko Oct 18, 2014 at 12:54 UTC - 0 likes


  • Avatar of maxibondarenko maxibondarenko Oct 18, 2014 at 11:55 UTC - 0 likes

    Good plugin, i like it

  • Avatar of luricos luricos Oct 15, 2014 at 20:57 UTC - 0 likes

    Sorry for beeing absent workchanges made it impossible to work on anything after work. Will answer to you later. Just let you know i did not abandon any project i maintain here on DBO.

    Will reply to your questions.

    Last edited Oct 15, 2014 by luricos
  • Avatar of LizardFreak7 LizardFreak7 Oct 12, 2014 at 16:40 UTC - 0 likes

    @to175: Go

    Have you added the H2 library yet?

    ShadowXCraft Minecraft server
  • Avatar of LizardFreak7 LizardFreak7 Oct 12, 2014 at 16:38 UTC - 0 likes

    This plugin is great! I have been using it for 10 months! The only bad thing is this is the only plugin I have that is not compatible with java version 8. Can you fix that? I am also having a hard time getting logged-out users to move. Any help?

  • Avatar of to175 to175 Oct 08, 2014 at 20:13 UTC - 0 likes

    Loosers... " [Server thread/ERROR] : [xAuth] H2 library missing!" -.-

  • Avatar of to175 to175 Oct 06, 2014 at 21:37 UTC - 0 likes


    Hello, is this plugin totaly working ? Is it clean ? Because AuthmeReloaded is VERY bad :( I used it for 2 years but each month there are unexpectable big bugs ...
    So xAuth is efficient or I have to reconfigure it each month ?

    Last edited Oct 06, 2014 by to175
  • Avatar of jeff1420 jeff1420 Oct 05, 2014 at 07:07 UTC - 0 likes

    Been geting some bad lag on the onlogin with spigot http://timings.aikar.co/?url=8497985

  • Avatar of DrWurzeli DrWurzeli Aug 27, 2014 at 19:52 UTC - 0 likes

    Please push out an update, that fixes this weird error with the unsafe enchantments. They all get cleared (books, coloured items, ...) and if you have showInventory on true, people can not login while having items like those in their inventory. This never happened before. Please update! (Best without UUIDs)


Date created
Jan 23, 2012
Last update
Oct 22, 2013
Development stage
  • enUS
GNU General Public License version 3 (GPLv3)
Curse link
Recent files



Optional dependency