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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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 Jun 10, 2012With the last update of bukkit (4.0 ), this plugin cause me some problems with one kind of spam bot.. when they enter my server the plugin start try ban them but it crash and STOP the server... I've to restart bukkit and the plugins start to ban ( without bot) after the reboot!! With 3.0 I've never had this problem...
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Posted Jun 10, 2012@Jordan0510
I cannot just turn it off, its an important protection.
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Posted Jun 10, 2012@qwerty00011
Yea
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Posted Jun 10, 2012Does the default config settings allow.player to do what they should be able to, whithout any mods.
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Posted Jun 10, 2012@Tallcraft
Maybe disable the FastBreak check or turn the alerts off.
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Posted Jun 10, 2012I have flight enabled on a server and in the nocheatplus config file, is there a way i can add permissions to prevent one specific group from flying... example no flight for guests but flight for members. If i can, what would the permission nodes be that I would add?
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Posted Jun 10, 2012Often got violations from players in creative breaking blocks too fast. How to solve this ?
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Posted Jun 9, 2012sup guys last time I checked this plugin enchanted tools were not working correctly for example if I had an efficiency diamod shovel the nocheat would think I was using hacked client to break blocks faster its this fix yet?
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Posted Jun 9, 2012@Jordan0510
PREACH IT!
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Posted Jun 9, 2012@77tontos
Wow, you seem like a real asshole... NeatMonster gives up his time to help protect our servers from hackers, then here you are commenting saying that his plugin is shit and how it doesn't protect your server at all.
How about you learn Java? Show us how good you are at coding plugins. :)
And when you say "spams mods screens" Isn't that meant to mean that it's working and catching the hackers?
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Posted Jun 9, 2012@bjornleijdstrom
Just configure the permissions per-world..
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Posted Jun 9, 2012Can you make this to work on selected world? I would love this plugin, but not on all my worlds.
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Posted Jun 9, 2012What i think of nocheat plus, Spams admins screen, spams mod screen, still allows hackers to use pvp hacks, very glitchy, Hell i gave up on this shit. im back on nocheat normal and it still works and works better.
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Posted Jun 9, 2012Players are complaining about tping back up when they sink through cobweb :O
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Posted Jun 9, 2012its just an idea but posibly clean up the config file a lil its kinda messy and i cant even get my head around it i want to disable banning from the plugin, cos id rather deal with banning people myself instead of it banning them and i dont see the reason why they was banned really makes it harder for me to deal with Ban Appeals and stuff
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Posted Jun 9, 2012will the plugin work with mcmmo when using skills like super breaker, and will it kick my moderators for using the /fly command?
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Posted Jun 8, 2012I just installed the plugins, when i put it in my plugins folder there were still alot of people hacking. When they were hacking, their violation levels went up but it never banned them. Even when they hacked into creative mode and had a violation level of 1500, they still weren't banned until one of my mods interfered. The config folder is the default folder, how would i set it to ban them at a certain level?
The NoPwnage config: active: true warnplayers: true warnothers: false warnlevel: 300 warntimeout: 30000 banlevel: 750 otheractions: cancel log:nopwnage:2:5:cf cmd:ban cmd:ban-ip
Somebody help, thanks.
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Posted Jun 8, 2012@jellewie
That might be the reason (some fly mod)...
Actually i am not the developer ;p, to put the levels higher you should have a look at that instructions.txt, the VL values give at what amount of "vl" things are beng triggered, and then the icf abbreviations are like ingame/console/file logging you could for instance just remove the ingame (and maybe the file) logging for some checks for low VL values but keep the cancelling to prevent cheats but not get spammed too much.
NeatMonster is the developer currntly, i am just following the developement. So for the exceptions for blocks you might keep to him (I am sure he will read your post, though, he ust hasnt been heard of for a couple of days.)...
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Posted Jun 8, 2012Is there a way to reduce the amount/frequency (without disabling it, just maybe making it not totally foolproof in the interest of lag reduction) of the PlayerMovementEvent checks overall? It gets very, very intensive at high player counts.
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Posted Jun 8, 2012@asofold
Good tip, I will keep that in mind when that's happened, The player who did tell me the problem has a mod for vids (slow flying) so probletly..
And is there any way to put the block break limit and no fall limited a little bit higher? I keep getting messages of players falling 3.14
And you can still fly on ladders (really fast up) And could you make a exception for blockbreak for, 6, 18, 30, 31, 32, 37, 38, 39, 40, 75, 76, 78, 83?
(BTW awsome plugins!! really thanks!)