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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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 asofold asofold Feb 21, 2014 at 23:13 UTC - 0 likes

    @StreetkillnHD: Go

    Just change the actions entry in checks.blockinteract.visible :

    Default: "cancel vl>5 log:bvisible:0:2:if cancel"

    Changed: "cancel"
    This will just silently cancel.

    Alternatives would be to increase the violation level by a lot by changing vl>5 to vl>500 or similar, or to increase the delay on the log action by a lot (advanced), so it does not spam.

    You can also turn off all ingame alerts in the logging section for a radical change.

    @sowerdb: Go

    What happens with tnt ?

    BFAK:asofold,90573112,4305cd44b773216e4e4b4865b3831dcc3c507c15087fb5cfeebd9392050724fc

    NoCheatPlus
    Latest release (1.7.2-1.7.9, approved) NoCheatPlus 3.10.12-RC-sMD5NET-b700
    (Development builds (1.7.10): Jenkins)

  • Avatar of sowerdb sowerdb Feb 21, 2014 at 23:08 UTC - 0 likes

    @StreetkillnHD: Go

    It is a bug with the tnt that does the same thing to me

    Survival4PvP

    Ip : survival4pvp.com:27050

    sowerdb

  • Avatar of StreetkillnHD StreetkillnHD Feb 21, 2014 at 22:45 UTC - 0 likes

    <<reply 2042323>>

    i dont want them alerts. to spam my chat .
    http://puu.sh/74fJK.png

    its been doing it alot.

    is there a way to turn just that alert off?

  • Avatar of asofold asofold Feb 21, 2014 at 22:20 UTC - 0 likes

    @StreetkillnHD: Go

    I can not recommend that - it would allow severe nuking.

    Why do you want to disable anything?

    Is there an actual issue, or do you just want to get rid of the ingame alerts?

  • Avatar of StreetkillnHD StreetkillnHD Feb 21, 2014 at 22:14 UTC - 0 likes

    <<reply 2041829>>

    so do i set these permission for default users.
    nocheatplus.checks.blockinteract

    nocheatplus.checks.blockbreak

    Last edited Feb 21, 2014 by StreetkillnHD
  • Avatar of asofold asofold Feb 21, 2014 at 21:42 UTC - 0 likes

    @Nikkolo94: Go

    Is that the info of the player who can not be hit for some time?

    It could be related to Ticket 705, but it could also be latency. To judge latency we would have needed the info of the attacking player who can't hit. If you can systematically reproduce it removing data of the involved players before testing (or all) could help.

    Usually with people moving that much i would suspect latency, also because the other player in the video is moving in an "optimized for checks" way, however the violations you show rather look like the moving players violations. If he had a clean sheet before that fight, it could indicate an issue as with ticket 705.

  • Avatar of MonarchServer MonarchServer Feb 21, 2014 at 21:37 UTC - 0 likes

    Thanks for update

  • Avatar of Nikkolo94 Nikkolo94 Feb 21, 2014 at 20:42 UTC - 0 likes

    <<reply 2041829>>

    BungeeCord: #846
    Spigot: 1312
    NCP+: 3.10.8-RC-sMD5NET-b664
    MCAccess: 1.7.2 / CB2922-DEV

    NCP: Displaying Ibbux97's violations...
    NCP: [17:34:41] moving.passable VL 24  (n24a1m1)
    NCP: [17:34:37] moving.survivalfly VL 1105  (n13a85m502)
    NCP: [17:33:18] fight.direction VL 2  (n2a1m1)
    NCP: [17:27:20] blockinteract.visible VL 2  (n2a1m1)
    NCP: [17:23:36] fight.critical VL 0  (n1a0m0)

    Sorry for my shitty english :P

  • Avatar of MyPictures MyPictures Feb 21, 2014 at 18:04 UTC - 0 likes

    @Nikkolo94: Go

    do /ncp info <AffectedPlayerName here> and post the output. We also need your NC+ and CB/Spigot version and if you use Bungee then also bungees version.

    @StreetkillnHD: Go

    nocheatplus.checks more infos here: https://github.com/asofold/NCPDocs/blob/master/wiki/permissions/permissions.creole#checks

    BFAK:MyPictures,68804,4095b7e13e1842a5c6922a5b3a9094d1f7dbb5f4e7e36f133280ab58fa2882b0

  • Avatar of Nikkolo94 Nikkolo94 Feb 21, 2014 at 17:29 UTC - 0 likes

    hey :)

    i would like to know if the bug appear on this video http://www.youtube.com/watch?feature=player_embedded&v=WozsGKx5VxE if maybe is caused by NCP, the player is unable to attack, and it happen a lot of time on my server

Facts

Date created
Apr 02, 2012
Categories
Last update
May 18, 2014
Development stage
Release
License
GNU General Public License version 3 (GPLv3)
Curse link
NoCheatPlus
Downloads
988,663
Recent files

Authors