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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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).
Elytra doesn't work with build 942 survival fly enabled (Just updated from 1.8 and did config regen)
Also I found creativefly elytra but not survivalfly elytra settings.
Am I missing something?
@grosse01
The latest versions always still support at least recent versions of Spigot/Minecraft. Both general and version-specific issues will still be dealt with.
For waterwalk please see the issues page: https://github.com/NoCheatPlus/Issues/issues/34
Our main concern is speeding on that account. Fight checks come next to 1.9, though.
First the Info: I Have: [NoCheatPlus] v3.13.8-SNAPSHOT-sMD5NET-b930 - an Spigot- git-Spigot-5f38d38-18fbb24 (MC: 1.8.8) (Implementing API version 1.8.8-R0.1-SNAPSHOT)- Now for my question. There came a player on my server who was able to run/walk on water. Is there some setting I should change to prevent that? Or will this be fixed somehow? Also I think the new hacks for 1.9 work on 1.8 versions to. And that quit good. So I also just wanted to know: will there still be fixes for the 1.8.8 version? Or will everything be for the 1.9 from now on?
@foxi69
I don't seem to understand your intention right now. Do you want to prevent too many players joining within a too short time?
@XolesienX
Can't judge with that bit of information. Could you post the full output of the 'ncp version' command? NCP development builds start to cover 1.9, but there could be other incompatiblities, thus more precise version+feature information is necessary.
Okay so I get this error when I am trying to jump over a slab without op: Version: 1.9 NCP Version: 1.9
@asofold
how can i reduce that? after player joins the checks is will start for him after some seconds
@foxi69
The event seems to be heavy-ish, possibly due to permission checking. Still the sample size is very small (0.0k), so we can't exclude random stuff.
Delay when player joins ... do you mean:
It could be related if many players join, but we couldn't nail down causes for higher timings (with few events) on login to anything specific yet.
0.29% 438.65% 1.54 s 219.32 ms 0.0 0.0k NoCheatPlus$7::onPlayerJoinLow(PlayerJoinEvent)
I got this lagg :S
edit.: i think i should make a delay when player join, for example 3 s
@tcarey2015
No problem - thank you for noting the solution :)
@aZZyCSGO
We're within the progress of updating. Development builds increase 1.9 support bit by bit. Note that the [BLEEDING] tags in front of a change means that it either coudln't be tested much or that there are other potential issues due to the complexity of a change.
Develpment builds can be obtained via this site: http://dev.bukkit.org/server-mods/nocheatplus/pages/nocheat-plus-development/jenkins/
We'll release a beta or RC, as soon as we have covered the most important safety/security issues to a sufficient detail (elytra, levitation, off-hand).
In the current state elytra might be made usable by configuring it to allow extreme speeds, but it'll not be safe, because cheaters could go straight on one level with that right now.
please update to 1.9
I have just figured it out. I am very sorry.
I had this perm negatted. prob cuz i thought it spammed me as OP.
- ^nocheatplus.shortcut.monitor LOL so sorry issue solved !
Is there a version of cncp that will work with 1.9 dev build of no cheat plus ?
~ Deleted ! ~
@Sitmobedaf
Thank you :).
@tcarey2015
Partly what @MarkElf2204 suggested (re-check, check if it loads properly ~ plugin managers etc).
The first thing to consider might still be, if your permissions plugin changes the op-default permissions. This would be seen in the configuration of the permissions plugin (something like allowOps or allow-ops for pex, can't remember right now).
@MarkElf2204
If you link to jenkins, please also include a clear note about it not being supported by BukkitDev staff (+ "use at your own risk"), otherwise it might/will violate the external links policy. An alternative for a quick link is our jenkins redirection page, which already contains the note: http://dev.bukkit.org/bukkit-plugins/nocheatplus/pages/nocheat-plus-development/jenkins/
Thanks for stepping in, though :).
@Bayside308
Yes, thank you :). We should probably place a more obvious reminder/link. As always, the development builds for 1.9 can be found on our Jenkins site.
We'll make it a beta at least as soon as we support Elytra and Levitation well enough.
@tcarey2015
You can find 1.9 versions on their Jenkins server: http://ci.md-5.net/job/NoCheatPlus/
Be warned though: These builds may be buggy and aren't approved by the Bukkit dev staff!
@tcarey2015
I don't believe that NCP loaded for you. I would reboot your server and run /pl (which should be green if it is active, red if it is disabled - Based on plugman, a plugin manager plugin I use to basically not have to reboot the server when adding a plugin, just note that it doesn't work with NCP as it is a larger plugin if you choose to use it as well) to see if the plugin loaded after rebooting.
Double check to confirm that you are op'ed, as well as retrying the issue to see if it still occurs with only NCP loaded. Be sure to use the latest build(s).
For anyone using 1.9, as I'm sure someone will ask, click here then click here. Be warned though: These builds may be buggy and aren't approved by the Bukkit dev staff!
I have a strange problem.
As Op with the individual permission : nocheatplus.command.info , I cannot use /ncp info <playername> or /nocheatplus info <playername>.
It says unknown command.
asofold, get well soon, we love you very much.
Currently i'm sick, so we won't get anywhere as fast as we probably would be without that being the case.
Concerning 1.9:
Concerning donations: Currently disabled, might re-think that though.
Where can I donate?