NoCheatPlus

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NoCheatPlus

Detect and fight the exploitation of various flaws/bugs in Minecraft!

Minecraft 1.11.2 and latest features are currently only available on Jenkins - once things stabilize, stable builds will be available here again.

Introduction

NoCheatPlus attempts to prevent cheat clients from exploiting weaknesses of Minecraft or its protocol, making your server more safe. Checks cover a wide range of issues including flying and speeding, fighting hacks, fast block breaking and nukers, inventory hacks, chat spam and other types of malicious behaviour. For a more complete list have a look at the Features Page.

NoCheatPlus puts emphasis on configurability and allows you to customize actions that are carried out when a player fails a check (e.g. silent cancelling, executing commands, just logging). Bypass permissions allow to control what check to apply for which players, all checks can be deactivated in the configuration, also having the option for world-specific configuration files. Many checks allow more detailed configuration to adjust sensitivity.

Certainly NoCheatPlus is not a magical bullet, it uses a lot of heuristics and even guessing, so you will encounter false positives here and there and also not catch every single violation. Example video of how NoCheatPlus blocks cheats (outdated plugin version).

NoCheatPlus was introduced by NeatMonster, building on the code base of NoCheat by Evenprime.

Make plugins like mcMMO or MachinaCraft more compatbile with NoCheatPlus. Not all existing plugins are covered (yet), but you can leave a note or create an issue/ticket request for cncp. Phasing out: Citizens 2 should work with NCP out of the box, MagicSpells are working on compatibility too - rest will be integrated into NCP.

Orebfuscator

Orebfuscator fights all sorts of X-ray-hacks by altering the map information that is sent to the players, such that they have to mine blocks to actually reveal what is behind. Virtually a "must have". (Latest versions of Spigot contain features of Orebfuscator.)

Downloads and History of Changes

Download officially approved versions on the Files page at BukkitDev.
Development builds have been moved over to the Jenkins at md-5.net.
Do not download from any other source, do not use jars other people send you.
Change lists: Wiki (digest) | Jenkins (by build number) | GitHub (all commits).
Source code
~~Plugin statistics are no longer reported to mcstats.org~~.

Support

Documentation Resources

Consider first: Frequently asked Questions and Known Issues.
Wiki (Configuration, Permissions, Commands)
Developers might have a look at the page describing the API of NoCheatPlus.

Contact us

Quick questions can be asked on this page,
or on IRC (Server: irc.spi.gt | Default-Port: 6667 | SSL-Port: 6697 | Channel: #nocheat | Web client: WebIRC)
For real issues or feature requests please create a new issue/ticket or add to an existing issue/ticket.
To send information that is not to be seen by all, you can also reach us by PM to @asofold and @MyPictures. @IceAP (IRC: ICE) will also help or redirect the conversation. Please do not contact the user 'NoCheatPlus', it is for administrative purposes only and will likely not be answered in time. Keep to BukkitDev and GitHub for support, do not trust users on other forums or websites, also not if their nick names are the same as NCP staff on BukkitDev.

Please always state the output of the "ncp version" command to let us know versions in use (users of cncp also the "cncp" command).

Comments

_ForgeUser8637903
- Join Date: 3/24/2012
- Posts: 4
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#530 _ForgeUser8637903

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Posted May 3, 2012
I think NoCheat+ is a good plugin, however it doesn't disable the zombe mod when i try get it to work. It stops people from flying, just doesn't say on the console "zombe-fly has been disabled" or whatever.

Help? :(

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_ForgeUser7084898
- Join Date: 6/28/2011
- Posts: 150
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#529 _ForgeUser7084898

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Posted May 3, 2012
Hey everyone! First of all thank you, NoCheat+ is a great security plugin, good job. Somehow, the action of NoPwnage does not seem to work. The captcha reacts properly and is a good start, but if the player(s) continue to spam nothing happens (no actions are taken). I guess (this is my thought, it might be something completely different) that the warnlevel increase of messageSpeed and messageRepeat is not reset (so that spamming after solving the captcha only increases the warnlevel by a very small amount every time). That should be fixed - or my config is wrong. Have fun,

Addi

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_ForgeUser8689671
- Join Date: 4/4/2012
- Posts: 7
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#528 _ForgeUser8689671

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Posted May 3, 2012
if i want op to use mod but i dont want player to use mod how?

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_ForgeUser7241474
- Join Date: 7/21/2011
- Posts: 12
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#527 _ForgeUser7241474

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Posted May 3, 2012
Some funny guy on my server used fast break. It still works. Please fix.

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Forge_User_61842651
- Join Date: 8/29/2011
- Posts: 2,535
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#526 Forge_User_61842651

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Posted May 3, 2012
@zerosanity

Oh yes, i might have been mistaken in my judgement (misread all the bracketing)...

Last edited by Forge_User_61842651: May 3, 2012

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_ForgeUser3722490
- Join Date: 12/25/2009
- Posts: 1
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#525 _ForgeUser3722490

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Posted May 3, 2012
@asofold

I'm hearing that it sends the get out of bed packet over and over.

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Forge_User_36160002
- Join Date: 4/5/2012
- Posts: 1,704
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#524 Forge_User_36160002

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Posted May 3, 2012
Hi o love u're plugin... but i'm op and i still can't use cjb mods:(

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_ForgeUser7568317
- Join Date: 9/18/2011
- Posts: 64
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#523 _ForgeUser7568317

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Posted May 3, 2012
can you make a violation level in seconds?

so for instance someone gets kicked if he flies for over 10 seconds

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Forge_User_61842651
- Join Date: 8/29/2011
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#522 Forge_User_61842651

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Posted May 3, 2012
@CoolOppo

That code fragments don't say anything, a link to the full source would be more interesting, but what does the fly-bypass do?

NoCheatPlus does not stop it?

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nikgenic
- Join Date: 8/14/2011
- Posts: 339
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#521 nikgenic

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Posted May 2, 2012
@ryvix

... Lol. I completely forgot about that! Thanks :D

I withdraw my request, NeatMonster! :P

Thanks ryvix

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_ForgeUser8156133
- Join Date: 12/6/2016
- Posts: 139
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#520 _ForgeUser8156133

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Posted May 2, 2012
@NeatMonster

No woah what problems has mcbans had????!

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ryvix
- Location: Guelph
- Join Date: 4/7/2012
- Posts: 1,041
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#519 ryvix

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Posted May 2, 2012
@np98765

Does changing the setting in your bukkit.yml for use-exact-login-location do anything for this?

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_ForgeUser7069461
- Join Date: 6/26/2011
- Posts: 145
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#518 _ForgeUser7069461

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Posted May 2, 2012
Not getting logged to console and have it set to true.

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nikgenic
- Join Date: 8/14/2011
- Posts: 339
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#517 nikgenic

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Posted May 2, 2012
Hi,

There is a 'cheat' that has recently come to my attention. This is more of a game-bug than a hack, but I was wondering if you could still fix it:

Dubbed the "logoutinator", users can instantly teleport to the surface above them using a hatch/trapdoor. They can walk into the hatch, close it, log out, and upon log in be teleported to the next free surface above them.

So, this isn't a 'hack', but it is a cheat...

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_ForgeUser6878637

Join Date: 5/23/2011
Posts: 97
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#516 Posted May 2, 2012

There is a fly bypass which has been publicly released. Please fix it as soon as you get a chance!

if(Variables.flyByp)
{
hitDelay++;
if(hitDelay >= 5)
{
for(Object target: mc.theWorld.playerEntities)
{
EntityPlayer targetEntity = (EntityPlayer) target;
if(targetEntity.entityId == mc.thePlayer.entityId)
{
//Variables.hurtCam = true;
//Variables.noswing = true;
mc.getSendQueue().addToSendQueue(new Packet7UseEntity(mc.thePlayer.entityId, targetEntity.entityId, 1));
//secret/not really needed

}
}
{
hitDelay = 0;
}
}
}

_ForgeUser4537470
- Join Date: 6/11/2010
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#515 _ForgeUser4537470

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Posted May 2, 2012
@NeatMonster

o_o What McBans issue?

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_ForgeUser7016479
- Join Date: 6/14/2011
- Posts: 52
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#514 _ForgeUser7016479

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Posted May 2, 2012
Put a copyright thing on it so no one else can use, otherwise you can sue them or tell the admin of the site to remove it.

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_ForgeUser7091862
- Join Date: 6/29/2011
- Posts: 161
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#513 _ForgeUser7091862

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Posted May 2, 2012
I'm not planning to release any major update of NoCheat+ soon because I'm busy working on the web interface (preview coming soon). About donations: I haven't accepted them yet because I've some trouble with PayPal.

@FlukiestEmperor Already fixed in the development version. Thanks for the report!

@UnitedFactions If you've some new ideas on how to prevent killaura, feel free to leave them in a comment.

@MasterGabeMOD I'm pretty sure that logging wasn't the source of the lag.

@deleted_8156133 @deleted_8156133 When a spambot is detected, the message is cancelled. IMHO, you shouldn't use MCBans (have you heard about the issues some users had with them?).

@ryvix I added an API into NoCheat+ but I haven't written its documentation yet.

@Geoneo97 Impossible.

@StuckingFoned Fixed in the development version, thanks for the report!

@xGamingDudex [redirect]orebfusfactor[/redirect] :D

@MainMarine Haha, thanks for your comment!

@ntscape Vanilla behavior, unrelated to NoCheat+.

@botskonet As you can see here, the message is only sent to players having the right permission.

Last edited by _ForgeUser7091862: May 2, 2012

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viveleroi0
- Join Date: 7/26/2011
- Posts: 473
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#512 viveleroi0

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Posted May 2, 2012
Using PermissionsEx, we have the in-game messages visible by all players.

Player rank has:

- nocheatplus.checks.moving.runfly - nocheatplus.mods.zombe.fly - nocheatplus.mods.cjb.fly - nocheatplus.mods.smartmoving.flying

Mod ranks have:

- nocheatplus.admin.chatlog - nocheatplus.admin.commands

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_ForgeUser8523922
- Join Date: 3/3/2012
- Posts: 10
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#511 _ForgeUser8523922

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Posted May 2, 2012
[WARNING] (player's name) was kicked for floating too long!

problem occurs with AuthMe plugin when login.
please check this problem :)

Last edited by _ForgeUser8523922: May 2, 2012

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Project ID

38212
Created

Apr 2, 2012
Last Released File

Jan 11, 2018
Total Downloads

1,897,009
License

GNU General Public License ver...

Bukkit

NoCheatPlus

Bukkit Plugins

NoCheatPlus

Table of Contents

Introduction

Recommended

ProtocolLib

CompatNoCheatPlus (cncp)

Orebfuscator

Downloads and History of Changes

Support

Documentation Resources

Contact us

Comments

About This Project

Categories

Members

Recent Files

Bukkit