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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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 Aug 22, 2012@craftovski
Thats a really strange bug, I only got that 1 time when Orebfuscator errored (old old version of it) and killed the chunk loading. I have no idea why this is happening, hmm.
@NeatMonster +1 like xP
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Posted Aug 22, 2012@craftovski
You could use "No Void Damage" plugin for a more or less crude workaround for the void falling.
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Posted Aug 22, 2012@ramius86
That is most likely due to lag on your server and NoCheat+ thinks your players move too fast and stops them in the middle of the jump. That happened to me also then after upgrading to 24 GB of ram only few complained(most likely cause of bad internet/pc or they suck at jumping and blame others idk )
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Posted Aug 22, 2012i am using Bukkit 1.3.1 R2 recomended build and was using NCP 3.7.0 (in blue box link) and just today updated to build #40. When i joined in server 1 of the players fell out of the world and explained how his game crashed and he joined back and world didnt load and he found himself falling out of the game. Then i thought its build #40's fault but then 3-4 players said that this happend to them also b4 this update and i was using 7.3.0 all along so its not only in #40 that problem.
If i find out more about this, and i will do some testing i will post. Hope i helped at least a lil.
Pls fix if possible ^^
Ty
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Posted Aug 22, 2012My players with latest dev have got one bug ( probably either with the previously build )..
When they tries to make the double jump ( 2 press key forward and the key jump ) they cannot make this jump and they fell down immediately
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Posted Aug 22, 2012@craftovski
which build do you use (CB and NCP)? Its kinda strange because that never happens to the NC+ server.
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Posted Aug 22, 2012My players also started complaining about falling into the void after reloging. Is that gona be fixed any time soon?
Ty.
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Posted Aug 22, 2012@Raydna3
Select your version to download:
How can you miss this?
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Posted Aug 22, 2012@Raydna3
Currently working on dev update, that you can test freely. We will release a stable version as soon as possible...
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Posted Aug 22, 2012Hey are u gonna update?
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Posted Aug 22, 2012@craftovski You can enable it in the configuration (it's now disabled by default).
@andrewkm For the first issue, build #40 should have fixed it.
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Posted Aug 22, 2012@NeatMonster
Build #39 im getting this: http://www.pastie.org/4568928
Also some users are complaining that after mining near bedrock they suddenly started falling through the void and now are getting internal server error and are unable to connect.
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Posted Aug 22, 2012in Build #31 you fixed bukkit preventing moded flying, and in newest build #39 bukkit complains again and pushes flying with mod(not creative flying) users down to ground(like b4).
I hope u include that bukkit fix in next build.
Tx ^^
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Posted Aug 22, 2012@emfjop
http://www.nocheatplus.org/update you will always get the latest version for 1.3.1-1.3.2 here.
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Posted Aug 22, 2012Hello. Which is the best version for 1.3.1? Thanks
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Posted Aug 22, 2012@cyclo666
Please make a ticket for either plugin describing your problems and also state (either by pm or otherwise) your plugins and versions also for craftbukkit - we need the build numbers or complete version strings otherwise we can not possibly help you.
That cncp causes such is highly improbable because all it does would be to prevent people being pulled back, rather. So you should also state the configuration of cncp and NCP.
And please keep to the ticket system, these messages are not optimal for lengthy conversations and asking back too much.
I could reproduce it, see the following ticket:
http://dev.bukkit.org/server-mods/nocheatplus/tickets/164-disable-enable-and-possibly-reload-lead-to-morepackets/
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Posted Aug 22, 2012@andrewkm
Yes it did change to: http://www.nocheatplus.org:8080/
We want to use the server also for other stuff so we had to disable the proxy for jenkins.ยจ
http://www.nocheatplus.org/update will always lead you to the latest version.
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Posted Aug 22, 2012Did the jenkins change URL? I cannot seem to connect to my bookmark which is at: http://ci.nocheatplus.org/job/NoCheatPlus/
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Posted Aug 22, 2012I need to know if the issues "falling when disconnecting" and "weird teleports" are fixed by build #39.
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Posted Aug 22, 2012@NodexServers
@7007King0770
Works fine for me. You can also download them from jenkins: http://www.nocheatplus.org:8080
@cyclo666
hmm then @asofold should take a look at that.