NoCheatPlus

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NoCheatPlus

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

Features Permissions Commands Configuration Jenkins

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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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.

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, Citizens, MagicSpells 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.

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

Support

Documentation Resources

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).

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  • Avatar of asofold asofold Mar 22, 2014 at 23:01 UTC - 0 likes

    @istegosaurus3: Go

    Well i don't exactly know what their settings are, and what exactly the data was, on base of which you were banned for.

    In general i would not ban for checks that are affected by network delay too much.

    If however you reach a very high violation level (constantly...) with the improbable check, then you might indeed be cheating, with a not too much adapted cheat client - still rare reports of false positives even for that check (some stuck-in-something loop) show that banning is very much a two-sided blade thing.

    Basically i suggest they check the data and settings for if those might be prone to lag (network or server) - i could offer some assistance over BukkitDev/pm for them.

    BFAK:asofold,90573112,4305cd44b773216e4e4b4865b3831dcc3c507c15087fb5cfeebd9392050724fc

    NoCheatPlus
    Latest beta release (1.8.x, this site) 3.13.0-BETA-sMD5NET-b878
    (Development builds, 1.8.x: Jenkins)

  • Avatar of streetkilln streetkilln Mar 22, 2014 at 21:30 UTC - 0 likes

    @asofold: Go

    somthing similar like that but players cant shut the doors at al they can open and close but then it randomly gets stuck..

  • Avatar of istegosaurus3 istegosaurus3 Mar 22, 2014 at 15:53 UTC - 0 likes

    @asofold: Go

    no

  • Avatar of asofold asofold Mar 22, 2014 at 10:37 UTC - 0 likes

    @istegosaurus3: Go

    Did you get some statement of the chacks and max. VL that lead to kicking banning?

    Last edited Mar 22, 2014 by asofold
  • Avatar of asofold asofold Mar 22, 2014 at 10:34 UTC - 0 likes

    @istegosaurus3: Go

    Looks like the server owner wants too much! There are people who can click at 10+ per second for a pretty long time. I am not sure if your server owners want/do ban for just one time reaching such frequency, or do something with the improbable check, however i have to strongly discourage banning for attacking frequency, because a network delay or lag can always lead to the attack-packets arriving in a bunch of 10, 20, 30, 40.

  • Avatar of istegosaurus3 istegosaurus3 Mar 22, 2014 at 09:44 UTC - 0 likes

    Banned For Fast Hits? I was banned form a server for fast hits and was told that the fastest you can click in minecraft because of the NCP plugin is 8.0 and that I was clicking 10.6 times per second. I wasn't hacking but could you verify if the statement that you can click only 8.0 times a second. Thank you I seriously need your help.

  • Avatar of asofold asofold Mar 22, 2014 at 09:33 UTC - 0 likes

    @LegitCake100: Go

    Please check updates for your server version (CraftBukkit, Spigot, whichever). For fastest specific answers to real problems, please prefer to state the full output of the "ncp version" command in future, it helps us a lot to judge things.

  • Avatar of LegitCake100 LegitCake100 Mar 22, 2014 at 09:27 UTC - 0 likes

    hey sir! when players spam they will get warning that they might get kicked but if they still continue they get kicked for spamming and the server will crash and then poof its off

    Last edited Mar 22, 2014 by LegitCake100
  • Avatar of asofold asofold Mar 22, 2014 at 09:17 UTC - 0 likes

    @FateMC: Go

    Good. I suggest you open a ticket and post/paste things like the configuration, full output of "ncp version". Maybe a plugin list could be useful (pm if not public).

    Do you happen to have any ingame-alerts or log messages from NCP? We also could use the output of "ncp info PLAYERNAME" for kicked players.


    Edit: Did you remove the survivalfly kick or increase the violation amount? Could be a measure for the meantime...

    Last edited Mar 22, 2014 by asofold

Facts

Date created
Apr 02, 2012
Categories
Last update
Jan 31, 2016
Development stage
Release
License
GNU General Public License version 3 (GPLv3)
Curse link
NoCheatPlus
Reverse relationships
4
Downloads
1,439,088
Recent files

Authors

Relationships

Optional dependency
ProtocolLib