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 Example video of how NoCheatPlus blocks cheats (outdated plugin version).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).
-
View User Profile
-
Send Message
Posted Aug 9, 2012@ihasamoose
Thank you!
We will take a look at this.
-
View User Profile
-
Send Message
Posted Aug 9, 2012- If a player is climbing up a vine, it triggers teh survival fly moving too fast.
- Knockback: tried to do a knockback but wasn't really sprinting is wrongly being called.
- Nofall is still viciously being called
- Angle: tried to fight multiple entities at the same time is being wrongly called.
- Players using Nodus can run at the speed of using "Potion of speed" 24/7
-
View User Profile
-
Send Message
Posted Aug 9, 2012@chrissshill: Yes, the Project is no more abandoned, the actual build is stable enaugh for Public Servers, I think. There are just some smaller Bugs, which arrent that bad.
@XeonG8: This is an global Problem. I got this Problem on my Server too. Try to add all Permissions for flying manuall, so not the Parentnodes like: "nocheatplus.*", but the single nodes.
-
View User Profile
-
Send Message
Posted Aug 8, 2012Is there an issue with NoCheatPlus and cjbmod (probably other client mods aswel?) (I havenn't removed plugin to see if it is or not, just suspect it is) where using the fly feature snaps a player to the ground.. or while making WE/WG selections they get messed up because your player height position is always changing, unless you stand on a block.
-
View User Profile
-
Send Message
Posted Aug 8, 2012So guys is this active and kicking again? It sure seems like it with all the new authors, and page enhancements.
When do you think you will have a relatively stable build up? I'm not sure if the development builds will be stable enough?
Thanks for keeping this alive! Keep up the good work!
- Chris
-
View User Profile
-
Send Message
Posted Aug 8, 2012People NEVER notice the 1.3.1 dev build? O_o
-
View User Profile
-
Send Message
Posted Aug 8, 2012@bigscary
There is a dev release for 1.3.1 linked on this page, above: 3.7.0
-
View User Profile
-
Send Message
Posted Aug 8, 2012I guess you already know this, but just in case - players on my server are flying, kill aura, fast break, and high jumping, that I know of. They'd probably be spamming if I didn't have GriefPrevention. I'm running 1.3.1 with NoCheatPlus 3.6.1. Any news on a 1.3.1 release?
-
View User Profile
-
Send Message
Posted Aug 8, 2012@Archonea
Ok, try the latest dev build and nocheatplus.checks.moving.survivalfly.sneaking (also blocking and sprinting are there but i am not sure if they are related for that).
-
View User Profile
-
Send Message
Posted Aug 8, 2012Is the the sneak check permission gone for good? I use a plugin to allow people to sneak and run, and I can no longer use NCP if I cannot exempt people from being checked for sneak speed, while still preventing them from flying.
-
View User Profile
-
Send Message
Posted Aug 8, 2012@slug1982
Latest dev build ?
I am not sure if it is already up to date, we just fixed nopwnage being redirected to the wrong checking routine, actually.
-
View User Profile
-
Send Message
Posted Aug 8, 2012What Features do you think don't work? - Did you look over the config-file?
-
View User Profile
-
Send Message
Posted Aug 8, 2012in fact I dont think the anti spam feature works at all...??
-
View User Profile
-
Send Message
Posted Aug 8, 2012@mrchasez
Likely to be a vanilla issue, which has been reported before: http://dev.bukkit.org/server-mods/nocheatplus/tickets/97-zombe-fly-mod/#c1
-
View User Profile
-
Send Message
Posted Aug 8, 2012@bigggan
That only works if you have a plugin with a kick command registered that allows for specifying a reason.
The normal kick command does not allow for that.
@Tommy_Mansell
I think so.
-
View User Profile
-
Send Message
Posted Aug 8, 2012@asofold
Yes i have it as true, it has never done this before, is it since the 1.3.1 update?
-
View User Profile
-
Send Message
Posted Aug 8, 2012@Tommy_Mansell
Its fly/speed detecion by Vanilla/CraftBukkit.
Not sure how to bypass it though, tdo oyu have allow-flight to true in server.properties ?
-
View User Profile
-
Send Message
Posted Aug 8, 2012@Valdiralita
What bug is it?
-
View User Profile
-
Send Message
Posted Aug 8, 2012@Tommy_Mansell
i can confirm this, i got the same problem
EDIT: oh, its not a NC+ bug ...
-
View User Profile
-
Send Message
Posted Aug 8, 2012I cant get flying working. The only permissions they need are: - nocheatplus.mods.zombe.fly - nocheatplus.checks.moving.survivalfly
Correct?