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List of Exploits, Dupes and Crashes and how to prevent them

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Hello Everybody,
As a server owner, I need to know a lot about bugs, crashes, dupes... on Tekkit Classic.
Unfortunatly, not so many server owners know about them, and as far as I have seen, there isn't a list about it.
That's why I'm going to list all the bugs, crashes, dupes and exploits (as far as I know) in this thread.
This will NOT be an explanation on how to dupe or crash a server. (because it might be usefull for some :/)
If you know a bug that isn't listed here, you can post it in the comments and I'll add it ASAP.


1:Red Matter Furnace

Probably the most known, with a Red Matter Furnace as key ingredient.

Can't dupe non-stackable items.

Image: http://postimg.org/image/sd5lkxbir/

Patched by TekkitRestrict.


2:Tank Cart

Also pretty common, the same way as Red Matter Furnace, with a Tank Cart.

Can't dupe non-stackable items.

Image: http://postimg.org/image/qncpw2eg1/

Patched by TekkitRestrict


3:Alchemy Bag+Void Ring/Black Hole Band

Not very common, but still a dupe, works with Void Ring or Black Hole Band.

Can dupe non-stackable items.

Image: http://postimg.org/image/bqzztojcp/

Patched by TekkitRestrict


4:Transmutation Tablet

Also not very common, and requires fast hands, and requires a Transmutation Tablet.

Also works with the portable one.

Can dupe non-stackable items.

Image: http://postimg.org/image/fc2ae1gnn/

Patched by TekkitRestrict


5:Teleportation Dupe

I haven't seen anyone using this dupe on my server, and it's very uncommon.

I don't know much about it, so anybody posting information would be helpfull.

Patched by TekkitRestrict


6:Automatic Crafting MKII+Blockbreaker

This one isn't common, but it's being used, it utilises an Automatic Crafting Table MKII and a Blockbreaker.

Also works with Mining Turtle/Mining Laser.

Can dupe non-stackable items.

Image: http://postimg.org/image/r21hbqye9/

Patched by TekkitRestrict


7:2 Players+Project Table Dupe

A more difficult one, because you need two players, and u need a Project Table.

I don't know much about it, so anybody posting information would be helpfull.

Patched by TekkitRestrict


8:Chest Cart+Item Loader

Probably the most recent and dangerous one, not familliar with any other dupe.

Requires a Chest Cart and an Item Loader.

Also works with BatBox, MFE and MFSU Cart.

Also works with Advanced Item Loader.

Can dupe non-stackable items.

Image: http://postimg.org/image/3q1gymkqn/


To patch this, you willl need to learn coding plugins.


9:Another Tank Cart dupe

A very recent dupe, and very difficult to patch

Requires a complicated setup

Can dupe non-stackable items.

Image: http://postimg.org/image/rjuqszltb/


To patch this, you willl need to learn coding plugins.





1:Sugarcane+Pedestal EMC Farm

A quite common one, but very recourseintensive. Utilises 2 Pedestals, a Condenser, some sugarcane, a Black Hole Band, and a Harvest Goddess Band.

Image: http://postimg.org/image/91x0pvytj/

This can also be done by using blockbreakers instead of Black Hole Band.

This can be prevented by banning Pedestals.


2:Bonemeal/Blazerod EMC Farm

The most common EMC Farm, legit on most servers. The more recourseintensive variant (blazerod) gives more EMC.

Image: http://postimg.org/image/t0hh608w7/

This can be prevented by using TekkitRestrict "SetEMC" option.


3:Milk EMC farm

Also a quite common one, needs a cow, some buckets, pipes, filters, a deployer and 2 Condensers.

Mushroom stew and a Mooshroom can also be used.

Image: http://postimg.org/image/fgat29o5v/

Can also be prevented by using TekkitRestrict "SetEMC" option.


4:Powered Rail EMC Farm

I've never seen anyone using this, except me once, but it generates tons of EMC.

Requirements: Timer, Red Alloy wire, Sticky Pistons, Powered Rails, Condenser, Black Hole Band

Image: http://postimg.org/image/jbab28f4b/

This can also be done with normal Rails, however, the output will be lower.

This is a difficult one to prevent, one way is to use TekkitRestrict "Minimum Timer Speed", however, some smart people might make a Vanilla "Rapid Pulser".

Banning Sticky Pistons is also a possibility.


5:DM/RM Furnace Exploit

A very, very recent bug and not patched by anything.

Original post + fix by me: http://dev.bukkit.org/bukkit-plugins/tekkit-restrict/tickets/343-rm-furnace-nova-exploit/

Image: http://postimg.org/image/stx5ls4z3/

To patch this, you willl need to learn coding plugins.





There are endless ways to crash a server with ComputerCraft scripts.

Due to variety, there isn't an Image.

Instead of banning ComputerCraft, I advise to use TekkitRestrict.


2:REP in Depoyer

Pretty uncommon, an REP in a Deployer can crash a server when activated.

Image: http://postimg.org/image/934k1ctqh/

Not fixed by TekkitRestrict


3:Red Alloy Wire+Redstone

Very uncommon, flicking the lever will result in a crash.

Image: http://postimg.org/image/64g0x7dst/

Fixed by TekkitRestrict


4:Stacked Weed-Ex+Cropmatron

I haven't got experience with this one at all, and I didn't manage to replicate it.

As far as I know, this corrupts your chunks, so BACKUP

I don't know much about it, so anybody posting information would be helpfull.

Not fixed by TekkitRestrict


5:Wireless Tracker crash

I haven't got experience with this one at all, and I didn't manage to replicate it.

Image: http://postimg.org/image/l51nk52ch/

I don't know much about it, so anybody posting information would be helpfull.

Not fixed by TekkitRestrict


6:Water Strainer crash

A pretty common one, but is easy to prevent by banning the Water Strainer.

Image: http://postimg.org/image/bherdiaz1/

Not fixed by TekkitRestrict


If anything is wrong on this thread, please post in comments and I'll correct it ASAP.

Some plugins I would recommend:

Tekkitrestrict - A plugin packed with features, designed for Tekkit Classic.

EEPatch - Prevent/Restrict all of your EE features, such as RM Morningstar Mega-Impact.

FixPack - A bunch of very usefull fixes, made for Tekkit Classic.

Edited by j0ach1mmall3
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  • 5 months later...

The Transmutation Tablet Glitch is NOT patched by Tekkit restrict it just simply makes it a bit harder to do, it is still very Do able. I just finished testing a bunch of these out on my upcoming server. Thanks for the post it's very helpfull. And if it's of any help the Cropmatron + the stacked weedex is only doable through a shop or sign shop plugin to allow that would allow them to stack while being bought.  

Edited by MegaShmelt
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  • 4 months later...
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I also managed to fix the redstone crash bug by doing 1 simple line of code. J0ach, some of the stuff you've posted here is known by 99% of tekkit server owners. I actually know a considerable amount of bugs there are not posted here that I can use to crash any tekkit classic server. I reccomend tunneling and doing some research.

You also didn't bother to mension much on the computercraft disk drive crash. I could dupe hundreds of stacks of items in a couple of minutes without beating an eyelid. You need to do some research skid. And if I were you i'd stop using that subdomain. Get a premium domain and dedicated server :)


No hate given. No hate attracted.



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I just mention fixing the bugs with TekkitRestrict as an easy fix because most of the people out there don't know java, also this is certainly not the place to discuss my server, if I need help with that I'll certainly ask for it. Also, if you don't have anything constructive to say, you're probably not meant to be there. Yes I will be adding the Disk Drive dupe. Also, if I go on a random survey of servers, 78% does not know one or more of these bugs.

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I'm protected from all of these bugs/dupes without banning a single item! :D

EDIT: Most of these can be patched by disabling some stuff in the config. For example: Disabling item loaders and advanced ones will prevent players from using it. MAKE SURE YOU DO THIS BEFORE YOU MAKE THE WORLD ELSE IT WILL CORRUPT YOUR WORLD AND INVENTORY!

Edited by Cleverdew
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