NoCheatPlus

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NoCheatPlus

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

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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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

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 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".

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 EcoCityCraft.
  • Do not download from any other source, do not use jars other people send you.
  • Changes by build number can be examined in the Jenkins changes list.
  • All commits can be seen in the GitHub commit history.
  • Plugin statistics are no longer reported to mcstats.org.

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 ticket or add to an existing ticket.
  • To send information that is not to be seen by all, you can also reach us by PM to @asofold and @MyPictures. 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 maxlehot1234 maxlehot1234 Dec 20, 2014 at 00:35 UTC - 0 likes

    Anyone have a solution to make this plugin: http:www.spigotmc.org/resources/tokenenchant-x-mas-discount-20.2287/ works with nocheatplus? It use explosive pickaxe, but everytime a player use this pick, he was kick for fastebreaking, wrongblock, frequency, etc...

    Any idea about this please? I test all options...

  • Avatar of asofold asofold Dec 19, 2014 at 09:41 UTC - 0 likes

    @time6628: Go

    • That's a 1.8+1.7 protocol build?
    • It only happens on farming many blocks?
    • Can you systematically reproduce it and check with "ncp info player" before and after reproducing the issue?
    • I would be interested in what check alerts there are (typical candidates are blockbreak and interact checks).

    BFAK:asofold,90573112,4305cd44b773216e4e4b4865b3831dcc3c507c15087fb5cfeebd9392050724fc

    NoCheatPlus
    Latest release (1.7.2-1.7.10, approved) NoCheatPlus 3.11.1-RC-sMD5NET-b743
    (Development builds: Jenkins)

  • Avatar of time6628 time6628 Dec 19, 2014 at 01:58 UTC - 0 likes

    Here is what I get when I do ncp version

    [18:55:22 INFO]: ---- Version information ----
    [18:55:22 INFO]: #### Server ####
    [18:55:22 INFO]: git-Spigot-1.7.9-R0.2-207-g03373bb (MC: 1.7.10)
    [18:55:22 INFO]: #### NoCheatPlus ####
    [18:55:22 INFO]: Plugin: 3.12.0-SNAPSHOT-sMD5NET-b775
    [18:55:22 INFO]: MCAccess: 1.7.10 / CB3100
    [18:55:22 INFO]: Hooks: Citizens2(cncp) 2.0 | mcMMO(cncp) 2.3
    


    We are using Carbon v1.8 to run MC 1.8.

    http://i.imgur.com/N8JJnDB.gif

  • Avatar of asofold asofold Dec 17, 2014 at 14:29 UTC - 0 likes

    @time6628: Go

    For 1.8 you would need to use the latest development build, is that the case (what is the output of the "ncp version" command)?

  • Avatar of Chris_GSPvP Chris_GSPvP Dec 17, 2014 at 10:15 UTC - 0 likes

    Can someone please take a look at my NCP config? I got so many aura hackers, the one who fixes my config will receive 10$.

    http://pastebin.com/S5YhED2z

    Contact me on skype: chris_gspvp

  • Avatar of time6628 time6628 Dec 17, 2014 at 02:23 UTC - 0 likes

    Take a plain(non-enchanted) axe and break a melon with it. It glitches and reappears. This can be very annoying when you are mass melon farming because you have to break the melon twice.

  • Avatar of asofold asofold Dec 16, 2014 at 22:45 UTC - 0 likes

    @UnDrac: Go

    Alright, i'd be interested in knowing if it stays an issue.

    @Gildfesh: Go

    Thank you. Will need to reproduce and create debugging logs.

  • Avatar of Gildfesh Gildfesh Dec 16, 2014 at 01:06 UTC - 0 likes

    Found a bug that can be quite easily patched.

    If you have a setup like this:

    http://puu.sh/dwpoH/453c1f485c.png

    (a cobweb above a ladder)

    You can't travel up the ladder into the cobweb. Not a very common build but this was found so it is used in some places.

  • Avatar of UnDrac UnDrac Dec 15, 2014 at 04:42 UTC - 0 likes

    @asofold: Go Using /ncp version I get this:

    [23:56:11 INFO]: ---- Version information ----
    [23:56:11 INFO]: #### Server ####
    [23:56:11 INFO]: git-Spigot-38b8866-275603d (MC: 1.8)
    [23:56:11 INFO]: #### NoCheatPlus ####
    [23:56:11 INFO]: Plugin: 3.12.0-SNAPSHOT-sMD5NET-b774
    [23:56:11 INFO]: MCAccess: 1.8 / Spigot-CB-DEV
    [23:56:11 INFO]: Hooks: mcMMO(cncp) 2.3
    

    Also I believe it has something to do with java itself instead of an actual problem with the plugin, I have several plugins that seem to not want to work on our host's machine but they work fine on our local test server. haven't had a chance to test NCP on the local one yet. I'll also be updating to the 775 build just in case.

    Last edited Dec 15, 2014 by UnDrac

    .

  • Avatar of asofold asofold Dec 13, 2014 at 20:19 UTC - 0 likes

    @DerekZil: Go

    Yes, i was testing with 1.8. I did not and probably can not test all combinations of tools and skills, i also can't emulate a busy server, so there is lots of spots uncovered, of course.

    So let's try to confine:

    • Does everybody have those problems (including players with low skill level)?
    • Does it also happen when the skill is activated (e.g. super breaker or tree feller)?

    Further:

    • How often does it happen?
    Last edited Dec 13, 2014 by asofold

Facts

Date created
Apr 02, 2012
Categories
Last update
Sep 21, 2014
Development stage
Release
License
GNU General Public License version 3 (GPLv3)
Curse link
NoCheatPlus
Downloads
1,075,557
Recent files

Authors