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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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 Oct 1, 2012Ok I downloaded the new Build, NCP now blocks the command "throw <number>" on Potions (thank you alot for that), but the "FastPlace" Option still works.
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Posted Oct 1, 2012Nodus ..! Your Going Down !!!
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Posted Sep 30, 2012@Aangiix3
Consider the dev builkd 125 on that (http://www.nocheatplus.org:8080/job/NoCheatPlus/).
"Insane rate" should be adjustable in the configuration for the inventory.instantbow, blockplace.speed and if needed the combined.improbable checks. Might be preset to 20 per second, later i might make the blockplace.speed similar to the blockbreak.frequency check (shortterm covers a couple of ticks plus covering one or two seconds for normal counting).
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Posted Sep 30, 2012Please block BowAimbot and Potions Fastplace!! You can throw potions at an insane rate with fastplace (also expbottle's!)
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Posted Sep 30, 2012@ArttuJarvinen
Use CompatNoCheatPlus for mcmmo compatibility (doesn't work well with spout). http://dev.bukkit.org/server-mods/compatnocheatplus-cncp/
Yea it is a issue with NC+ but its fixed in one of the latest dev builds: http://www.nocheatplus.org:8080/job/NoCheatPlus/
We plan to push out a RC soon so that's the reason why there isn't any beta out yet.
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Posted Sep 30, 2012Can you add McMMO compatability? And also my players get kicked sometimes when they break an enderchest, I don't know if it's because of NC+, but it's my best guess...
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Posted Sep 30, 2012@aadd2012
Yea its NoCheat+ and it also blocks Smart moving. All other things it can block you can find here: http://dev.bukkit.org/server-mods/nocheatplus/pages/features/
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Posted Sep 30, 2012hi~
this is no cheat , no smart moving ?
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Posted Sep 30, 2012@Johnny_Bravo0_0
@MyPictures
If NoCheatPlus tells, then it also has blocked something, given the default configuration - also it blocks some stuff without telling at first, to avoid spam.
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Posted Sep 30, 2012@Johnny_Bravo0_0
That's a config thing. Just take a look at the configuration page: http://dev.bukkit.org/server-mods/nocheatplus/pages/configuration/
Most hacks that NC+ checks will be canceled and some kicked/tempkicked.
For Fly and Nuker: NC+ already blocks that, I add a video soon so you can see.
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Posted Sep 30, 2012I have tryed this out but i dont like it becasue no action happens if someone hack.
I only get a warning, i want it like anticheat you can f.eks block them to fly and stuff..
Plz help me getting a good nocheat plugins or fix Nocheatplus so it will block players using hack. (Nuke, fly...)
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Posted Sep 30, 2012@asofold
Thanks!
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Posted Sep 30, 2012@H8llfire
Never dumb on such. It is a bug. Fixed in dev builds 119 and up: http://www.nocheatplus.org:8080/job/NoCheatPlus/
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Posted Sep 30, 2012Players get kicked on latest Beta build when unbuilding a chest with a pick efficiency 4.
Sry if already reported or if I'm just dumb :D
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Posted Sep 30, 2012@Bimmr
Need more information - do you want them to place boats outside of water? In that case you need to allow them to, becasue NCP would normally prevent it. Otherwise please state versions of NCP and CB, the full versions. Does that happen when placing boats on water ?
@harryjamesuk
"blocktype" is not supported by the current versions, either delete that string entry or the whole config to let it regenerate. The latest dev build adds blockid to fastbreak messages (http://www.nocheatplus.org:8080/job/NoCheatPlus/) though it also adds other stuff that might use a bit more of testing.
Not sure why "[violations]" does not get filled in though, wil have a look.
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Posted Sep 30, 2012@asofold
Same problem here. Yes, It's fastbreak problems. Another thing I noticed is it says this: deejaymonkey failed FastBreak: tried to break too much [blocktype]. Total violation level [violations].
And yes, that's exactly how it looks. Not putting [blocktype] as anything. That's just what it said.
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Posted Sep 29, 2012NoCheatPlus hates boats.... My players are just using a boat regularly and nocheatplus spams me about them, then bugs out the boat for them, any fixes?
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Posted Sep 29, 2012@Destroyer_xI
That is the violations log. An error i seewith the fastbreak messages, they seem to be from very old times, you should consider regenerating the config. The block id will be put back in lateron.
Interesting is now at which point of time players got kicked, was it the fastbreak entries?
If in doubt please post the fastbreak actions entry of your NCP configuration, the check was different in 3.6.1 so it might kick for very low violation levels if you have not let the config regenerate with the update to the 3.7.3 version of NCP.
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Posted Sep 29, 2012@asofold
Error. I think this speaks for itself: http://pastebin.com/uTRfqEmP
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Posted Sep 29, 2012@Destroyer_xI
Did you check nocheatplus.log in the plugins/NoCheatPlus folder ?