NoCheatPlus
Detect and fight the exploitation of various flaws/bugs in Minecraft!
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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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.
Recommended
The following plugins might be useful to have a look at.
ProtocolLib
Allows NoCheatPlus to activate packet-level checks, covering a range of exploits that can't be monitored using ordinary means. Since roughly Minecraft 1.7.10, the fight.speed check can't work as expected anymore, due to changes in CraftBukkit. With ProtocolLib this can be repaired.
CompatNoCheatPlus (cncp)
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
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_ForgeUser9668734 Owner
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_ForgeUser15078623 Ticket Manager
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_ForgeUser16101223 Contributor
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_ForgeUser7091862 Former Author
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_ForgeUser7459264 Former Author
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Forge_User_61842651 Author
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MyPicturesCP Artist
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Posted Mar 4, 2013@asofold
Sure thing let me get them, I recently made the server offline mode so my stupid co owner could join :D So that might of affected it.
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Posted Mar 4, 2013SurvivalFly: hover
^ any changes to this and velocity based skills?
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Posted Mar 4, 2013SurvivalFly: hover
^ any changes to this and velocity based skills?
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Posted Mar 4, 2013@LEOcab
Do they connect as a player !? NCP might limit the number of players joining or too fast re-login.
@NuggetFace
That seems strange, can you post or send us your version of CraftBukkit, as well as a plugin list?
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Posted Mar 4, 2013Get this: http://pastebin.com/cRXMfLSV
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Posted Mar 4, 2013I have a problem. My server isn't being queried properly by Minecraft Forums' server list. I filed a ticket over there and they said it was a problem on my end. Funny thing is my server is queried properly from 8 other server listing websites, LOL.
Anyways, I then remembered that NCP may or may not have a feature that deals with players logging in too quickly so I thought that may or may not be the cause. Does anyone else on here have a server with NCP properly listed at MCF server list? Thanks in advance. :)
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Posted Mar 4, 2013@mheiden
I think that would be better, since there are quite some changes and additions.
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Posted Mar 4, 2013@asofold I work with bukkit 1.4.7-R.1 and NCP+ 3.8.9-b353.
Want me to wait on the upcoming NCP+ version before testing it against nodus?
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Posted Mar 4, 2013I love that dounutfont! :D
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Posted Mar 3, 2013@JAG100
This is sometimes called "block jumping" too. Technically the player is flying or just jumping on server side, because the blocks he places to attempt are never actually placed, that is purely client side.
The problem with fences is that even vanilla clients can get over a normal fence now and then. With the latest development builds a three block high wall should be safe.
We will certainly try to prevent two blocks being jumped up.
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Posted Mar 3, 2013HI guys! I'm a big fan of this plugin and learned of an exploit today which may be common knowledge but was new for me. I was playing with a new map which incorporates pathways through a jungle akin to rope swing bridges. Was using this as an interesting spawn for my Adventure World and I had to build the fences up on either side of the pathway to keep players from escaping out into my flat world where I have a lot of schematics I've pasted into this flat world. Anyway, there was this one player who kept getting over my fence and I couldn't figure out what he was doing! Finally, I got it out of him and he was taking two or three blocks and rapidly stacking them and climing on them at the same time which allowed him to almost fly/jump. My normal players couldn't do it but this one player could. I had to build the fences up really high like 3 stacks a top one another to defeat him. Makes for a funny looking rope swing bridge I'll tell you!
I get these survival fly messages sometimes when he does it and I've seen this from other players from time to time. Is there a configuration I've missed that can stop players from using this exploit? It's not technically a hack. Just curious what you and others have experienced in this particular area.
Warmest Regards, JAG100
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Posted Mar 3, 2013Be sure to have the right version to test with. We will soon release a new one, so development builds are the reference, currently. Otherwise at least use 3.8.9-b353.
Further note that activation of Nodus features does not mean that it does all that much, mostly you will have adaption to the limits NCP sets, so the interesting part is how much you can actually reach with using a cheat-feature.
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Posted Mar 3, 2013@asofold Not really, because that was just a part of what is possible with Nodus.
I will make u a list of all nodus cheats that are able with NCP+ active.
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Posted Mar 3, 2013@wiedzmin26
Most of those are adapted such that they don't dÃffer too much from very good (or perfect) fighting.
How effective are they?
Example: Don't try forcefield against one zombie, every beginner can win that fight ... what is the outcome in pvp with both players active?
@mheiden
I think i already gave an answer :).
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Posted Mar 3, 2013@Mre30 Need more details.
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Posted Mar 3, 2013@asofold
Si read below me:
I can give u the nodus.jar if u want to test it...
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Posted Mar 3, 2013@asofold
ForceField ClickAimBot Bowaimbot
on
NCP 3.8.9 and DEV build 430 http://ci.md-5.net/job/NoCheatPlus/430/
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Posted Mar 3, 2013Help stop players from being kicked while in a boat??
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Posted Mar 3, 2013@mheiden
Big part?
Use Orebfuscator for such.
Freecam can't really be blocked, at least not for the general case.
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Posted Mar 3, 2013Nodus works for the big part, any chance Nodus mod can be blocked?
Like free cam / xray / cave finder / chest finder etc...