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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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 Jul 15, 2012i can understand that too. However it would make sence that it take effort on the servers end to make the happen for the xrayer. Are you saying this is not true if so i will get it right now and put it in. As i said im looking for a second opinion/
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Posted Jul 15, 2012@Idntwanttwousernamesasswhipe
I was under the impression that it only lags if you're using a modded client that has x-ray.
Soo...
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Posted Jul 15, 2012So first off im using the plugin works great so thank you. However i read your bottom part there: Orebfuscator
Players use X-Ray hacks to find ores and other valuables so fast that it completely ruins your economy? Then give this plugin a try. It is an All-In-One anti-X-Ray solution that can (in combination with the included OreScrambler) defeat all X-Ray hacks. And it's easy to use. And it's free. So why aren't you using it yet?
So ya this plugin i heard is EXTREAMLY laggy and i can see why. It takes all the block in the game and when using xray manipulates them to a different ore type. Then when mining it comes back to the original block. I have not used this plugin myself however i have been on server with this plugin and they lag really bad. Can i get a second opinion on this?
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Posted Jul 14, 2012For all who are asking: Why isn't there a update out already?
Read here: @Juliui
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Posted Jul 14, 2012Please add a option to block IP in chat beacause some user paste theris servers IP and website Thx for plugin
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Posted Jul 14, 2012Is this even being worked on at all? There have been no updates for months? Is it dropped? Is there a jenkins now? Any dev builds?
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Posted Jul 14, 2012@asofold
ah i was using this b4 but i was not sure if it was working or not because it seem like it was still canceling the block from breaking
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Posted Jul 14, 2012Hi
I dont know if its happening to any of you but its is using up alot of ram
Thanks
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Posted Jul 13, 2012@KevinEssence
I think he "quit updating" for re-coding, something probably came in the way.
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Posted Jul 13, 2012Did the owner quit updating? Over a month now..
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Posted Jul 13, 2012@MANcraftinBLACK
Troll or xray, nodus user detected. Guys are working so hard and if you dont paid for something dont lament
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Posted Jul 13, 2012@MANcraftinBLACK
You obviously have no idea what you're talking about. Just quit the internet.
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Posted Jul 13, 2012@MANcraftinBLACK
WOT!?
So you like to have Nodus players on server that have 100% freedom and can do everything? Meh you don't know what you are talking about and no NoCheatPlus doesn't block texturepacks or mods like matmos or whatever. It just blocks illegal actions that are coming from the client, like too fast block break or chat speed...
Without @NeatMonster and NoCheatPlus most server would be totally griefed now, so stop talking about something you don't know that say THX!
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Posted Jul 13, 2012This plugin ruines the freedom and open-ness of minecraft. It totally negates the moddability of minecraft and completely ignores player's choice to mod or not to mod. It is a boring plugin to make server experience less exciting. I don't know why players use this, but who stops players from PLAYING minecraft (includes mod and texturepack usage) should be banned from the game forever!
My tip: Delete this shit!
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Posted Jul 13, 2012@leon01288
I think some of the vanilla related problems will be fixed later,
for mcMMO you can use this: http://dev.bukkit.org/server-mods/compatnocheatplus-cncp/
It will prevent most alerts for block breaking by mcMMO.
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Posted Jul 13, 2012okays i am using MCMMO and when people break blocks they get kick and or cancel because mcmmo lets you break blocks faster the higher lvls you are but thats not the problem the problem i have is if people are using enchantement lvl 5 or 4 they kick because the block break super quick i noticed in your setting you can check if they are in creative or survive. i was wondering if you could make it soo you could also check for Enchantments too? or can you also add exceptions like suger cane people keep getting ringed up for that
Sorry for spelling and or grammar
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Posted Jul 13, 2012@tadukoo
This is unlikely to be related to NoCheatPlus, it is a Vanilla or CraftBukkit message...
Are you using Spout (and if so the latest version)?
There is several CraftBukkit related ticket for this issue, such as: https://bukkit.atlassian.net/browse/BUKKIT-1081 (Actually marked as invalid, seems they blamed spout for it).
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Posted Jul 12, 2012I recently started using NoCheatPlus and almost all my users kept getting kicked off every time they logged in due to "moving too fast". Some of these people may have been using hacks, but most were either lagging a little or just logging in. I'm not entirely sure if this plugin was the cause, as I tried switching to AntiCheat and got the same result. Then I removed all anticheating plugins and still had the same error. I had to go to a backup just to fix it. Sorry if this plugin is not the problem, but if anyone can help me prevent this in the future or pinpoint the error, please do.
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Posted Jul 12, 2012Hello people,
Sorry for the lack of communication during the last week. I'm currently in Los Angeles, so I don't have the time to answer to all the messages / tickets. By the way, I haven't any informations about the NCP update, since I don't have time to talk to Neat too. NeatMonster is currently going through some troubles in his real life, so please be patient...
Really sorry about the delay for the new update...
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Posted Jul 12, 2012@LaserCucumber
See line 398 and below of instructions.txt, it should be nocheatplus.checks or nocheatplus.checks.moving, usually.
@krone6
Ignoring a world completely would also allow arbitrary spamming (you might have another plugin for that), item drop hacks and possibly other, so i would not recommend to just have one world ignored.