Minecraft

Currently the server is running 1.6.1-R0.1 Dev for our Minecraft server. We have now updated the plugins to be compatible with 1.6.1

Load Minecraft:

/usr/bin/java -Djline.terminal=jline.UnsupportedTerminal -client -Xmx7132M -jar craftbukkit.jar nogui -d yyyy-MM-dd HH:mm:ss -nojline

Load McMyAdmin:

tmux new-session -t minecraft
cd /home/user
./MCMA2_Linux_x86_64 | tee /var/www/sites/byw*.co.uk/logs/minecraft.log

If you want to connect from elsewhere to view the above output/console load the screen session:

ssh user@localhost -pXXXX
tmux ls
tmux attach 0

Using CTRL + D will quit screen and close any processes running within it. To exit safely do:

CTRL + B, let go, then press D on it's own.

When downloading a backup from McMyAdmin, it comes in the mcb format. Change it to .zip and you can then unzip it into a folder and restore to the server.

Allowing PvP

Personally, for WorldGuard's pvp flag to work we had to ensure:

• Essentials plugin had pvp = true
• McMyAdmin control panel had Configuration > Game Settings > Allow Player vs Player combat
• server.properties file had pvp = true
• WorldGuard had __global__ set to pvp deny
• WorldGuard then could have specific regions set to pvp allow

Backpack

Reduce/downgrade Backpack space:

cd /Minecraft/plugins/Backpack/backpacks/world
ls -lah

Edit the value next to "contents-amount:" in the user's .yml file.

Chat

/tell PlayerName will whisper a message to a player. This option will not show in a console.

/msg PayerName will show it as YourPlayerName -> Me to the other Player but be private

Prefix and Suffix

Never use McMyAdmin's Prefix and Suffix boxes, as you likely will not be able to remove them after you have set them without removing the group and re-adding it.

Check server's TPS

Ticks Per Second

If you use Bukkit/Essentials, do /lag

ColorMe

If you add or remove a player to players.yml manually, keep a copy of the text you entered or of the file from which the text was removed. Sometimes when you do /color reload it will import an old version of the file from before the change you made. To resolve this:

• make a copy of the text you added or the entire file not including the text you remove
• run the following command: :> players.yml
• in config.yml set updateConfig: to true from the default of false
• do /color reload
• now add or remove the text you did before and do /color reload again and it should work

Also, it may be worth keeping updateConfig: as true always

Connection reset

[Metrics]

Set opt-out to true in plugins/PluginMetrics/config.yml

This by default is false.

In minecraft.log "[INFO] Connection reset"

touch reset.sh ; chmod +x reset.sh ; vim reset.sh

#!/bin/bash
netstat -pantu | grep -v LISTEN | grep 25565 >> reset.log
echo -e "\n-------------------------------------------------------------------------------------------"
date +%R
netstat -pantu | grep -v LISTEN | grep 25565

Then do the following in two separate SSH windows:

tail -f minecraft/install/directory/logs/minecraft.log
watch -n 1 ./reset.sh

Then match up the times, and block the IP address from the server list website that is causing the message:

iptables -A INPUT -s 50.116.54.77 -j DROP
iptables-save
iptables -L

Configuration

Lava

Allowing lava seems to be easiest by creating a group that can do it and then doing:

# Allow lava buckets
[lavabucket]
allow
ignore-groups=Everyone
on-use=notify,log

The below method seems to fail

ignore-perms=worldguard.lavabucket.exempt
ignore-groups=admins,mods,Lava
on-use=deny,tell,notify,log

Current errors

On /reload, this appears:

[WARNING] [PermissionsEx] Can't obtain PermissionsEx instance
[WARNING] [PermissionsEx] Reinjecting all permissibles

Doesn't show on startup.

[WARNING] Can't keep up! Did the system time change, or is the server overloaded?

May be due to TPS, /lag

Current issues

I have the server difficulty set to 2 (Normal, so mobs can spawn in the normal worlds), but then in the Multiworld config I have set the difficulty of the creative world to be 0 (peaceful, so mobs can't spawn).

In my creative worlds when it is night time mobs rapidly spawn and de-spawn. Is there a way to fix this?

This seems related: https://mojang.atlassian.net/browse/MC-1202

It looks like a bug with MC itself, and was addressed in this snapshot: https://mojang.com/2013/06/minecraft-snapshot-13w24a

I assume that means we just need to wait for CraftBukkit to include the fix in a release.

https://mojang.com/2013/06/minecraft-snapshot-13w24a

DynMap

To remove a map from rendering on the Dynamic Map web page, do this:

/dynmap pause all
/map mapdelete _worldname_:_mapname_

Or remove the folder from /home/user/Minecraft/plugins/dynmap/web/tiles/worldname

Configuring Maps and Worlds using dmap
FAQ

Render all:

/dynmap fullrender

Please be warned if you run a full render with the template set as the highest one for HD, hi_boost_xhi, then on a server with 8GB of RAM it will cause ~45-65% RAM usage.

Pause render:

/dynmap pause all

Start render:

/dynmap pause none

Disable world render:

/dmap worldset WorldName enabled:false

Hide a player:

/dynmap hide PlayerName

Show a player:

/dynmap show PlayerName

https://github.com/webbukkit/dynmap/wiki/Web-UI-Parameters

http://bywatercraft.co.uk:8123/?worldname=world&mapname=surface

The Dynmap WorldGuard plugin that shows the WorldGuard region areas on the Dynamic Map shows a green border when there is no owner as it is not claimed.

Enjin

• domain.co.uk//admin/games/minecraft-plugin/gid/6207-0
• Click Vault
• If using Unix download the Vault.jar by doing wget http://dev.bukkit.org/media/files/655/849/Vault.jar
• Download the Enjin plugin
• Upload it via FTP to your server and it's Minecraft plugins directory
• Click Add Server
• Note down the enjinkey

Essentials

Command reference

Allow TNT

We use http://dev.bukkit.org/server-mods/antitnt and http://dev.bukkit.org/bukkit-mods/naughty-blocks which means we can have TNT enabled but then only provide users access via the permissions AntiTNT.tnt and naughtyblocks.tnt

Essentials and WorldGuard don't. If you are using Essentials and WorldGuard do this:

vim plugins/Essentials/config.yml

10 = lava :: 11 = still lava :: 46 = TNT :: 327 = lava bucket

Default:

alert:
    on-placement: 10,11,46,327
    on-use: 327
    on-break:

placement: 10,11,46,327

Remove 46 from the placement line.

Ensure plugins/WorldGuard/config.yml has the following:

ignition:
    block-tnt: false
    block-tnt-block-damage: false

Find players home

/home playername:home
/home <user>:<name>

Broken:

/home user:

Get user's coordinates

If you have Essentials, use /getpos PlayerName

Kill specific mob/s

/killall MobName (e.g. Blaze)

Mail players

/mail send FullPlayerName Message

To read the mail, do /mail read
To clear the mail, do /mail clear

Respawn at home instead of spawn

Change this:

When users die, should they respawn at their first home or bed, instead of the spawnpoint?

respawn-at-home: false

to

respawn-at-home: true

Set players home

The player can either sleep in a bed or use /sethome if they have access.

If not set, they will go back to spawn.

Set players spawn

If you have a few spawn plugins, and all go to the same spawn except when new players first join, try to do this:

/setspawn *default

https://www.assembla.com/spaces/essentials/tickets/1352#/activity/ticket:

Stop checking user's permissions

If you get the following message a lot in your server.log:

Essentials: checking if Player has plugin.permission - true/false

vim plugins/Essentials/config.yml

Set debug: to false.

Teleport player to you

/tpohere playername

Teleport to coordinates

/tppos x y z

Teleport to player

As OP, /tpo playername

As player, /tpa playername

Updating Essentials

mkdir /root/scripts/testing/ess-core
mkdir /root/scripts/testing/ess-extra
cd /root/scripts/testing/ess-core

Latest (as of 08/07/2013):

wget http://dev.bukkit.org/media/files/711/777/Essentials.zip

unzip Essentials.zip
rm Essentials.zip
cd /root/scripts/testing/ess-extra

Latest (as of 08/07/2013):

wget http://dev.bukkit.org/media/files/711/776/Essentials-extra.zip
unzip Essentials-extra.zip
rm Essentials-extra.zip

Stop the server.

Make backups:

mkdir /root/backups/essentialsBackup/
cd /home/mc/Minecraft/plugins/

Either copy or move the files/folders:

cp -v Essentials/ EssentialsAntiBuild.jar EssentialsChat.jar Essentials.jar EssentialsGeoIP.jar EssentialsProtect.jar /root/backups/essentialsBackup/ -R

mv -v Essentials/ EssentialsAntiBuild.jar EssentialsChat.jar Essentials.jar EssentialsGeoIP.jar EssentialsProtect.jar /root/backups/essentialsBackup/

Copy the new version of the files into place:

Essentials Core:

cd /root/scripts/testing/ess-core
cp -v EssentialsAntiBuild.jar EssentialsChat.jar Essentials.jar EssentialsGeoIP.jar EssentialsProtect.jar /home/mc/Minecraft/plugins -R

Essentials Extras:

cd /root/scripts/testing/ess-extra
cp -v EssentialsGeoIP.jar EssentialsXMPP.jar /home/mc/Minecraft/plugins -R

Fixed errors

Modifyworld pass event

[SEVERE] Could not pass event InventoryClickEvent to Modifyworld v1.19.4 org.bukkit.event.EventException

Fix: Disable the Modifyworld plugin and allow people to edit the world via the essentials.build permission.

Notes: http://www.minecraftforum.net/topic/1763125-severe-could-not-pass-event-inventoryclickevent-to-modifyworld-v1194
https://github.com/PEXPlugins/PermissionsEx/wiki/Modifyworld#wiki-mw-configuration

NoSplosion will cause Endermen to NOT spawn

"Disables all explosions vanila or mods (tekkit etc...) and fire from destroying blocks as well as endermen from spawning. All explosions and fire still damage players but do not damage the environment."

NoCheatPlus

[INFO] [NoCheatPlus] Enabling NoCheatPlus v3.6.1
[SEVERE] Error occurred while enabling NoCheatPlus v3.6.1 (Is it up to date?)
Error  : Minecraft server could not be started
java.lang.VerifyError: (class: fr/neatmonster/nocheatplus/checks/chat/ChatListener, method: commandPreprocess signature:(Lorg/bukkit/event/player/PlayerCommandPreprocessEvent;)V) Incompatible argument to function
Error  : An incompatible, damaged or outdated addon is preventing the server from starting.
Error  : Java Error: java.lang.VerifyError: (class: fr/neatmonster/nocheatplus/checks/chat/ChatListener, method: commandPreprocess signature: (Lorg/bukkit/event/player/PlayerCommandPreprocessEvent;)V) Incompatible argument to function

Outdated version, install up-to-date version: http://dev.bukkit.org/server-mods/nocheatplus/

Your configuration might be outdated!

The best thing to do is just do:

mv config.yml old.config.yml
diff config.yml old.config.yml

Then reload the server configuration or NCP plugin itself:

/reload
/ncp reload

Give items

http://www.minecraftinfo.com/IDList.htm

/give [playername] [data-value] [amount]

http://www.minecraftwiki.net/wiki/Data_values

Install Feed The Beast on a Unix server

Add a user and make a directory specifically for the mod, e.g.:

add user ftb
mkdir server
cd /home/ftb/server
su ftb

Then do:

tmux new-session -n NameTheSession
su user
cd ~/server
wget http://www.creeperrepo.net/direct/FTB2/6ce418a51b200ece8cb3c509ba9e094a/modpacks%5EUltimate%5E1_0_1%5EUltimate_Server.zip
mv modpacks^Ultimate^1_0_1^Ultimate_Server.zip Ultimate_Server.zip
unzip Ultimate_Server.zip
vim ServerStart.sh

Edit the values as you see fit.

chmod +x ServerStart.sh
./ServerStart.sh | tee ftb.log

It will error out if you're already running a Minecraft server on the default port 25565. If it does, do CTRL + C. To change this,

vim server.properties

Set the server-port to something that is not 25565. Then make sure the user:group ownership is correct on the server folder and all files and directories below it.

./ServerStart.sh | tee ftb.log

CTRL + B then d to quit the tmux session.

Errors

If you get something like below, you likely need to disable some mods (for me it was mods/railcraft.jar and mods/MineFactoryReloaded.jar):

[SEVERE] [ForgeModLoader] Detected leaking worlds in memory. There are 4 worlds that appear to be persisting.
A mod is likely caching the world incorrectly
2013-04-23 15:54:59 [SEVERE] [ForgeModLoader] The world 7debb392 (world) has leaked.
2013-04-23 15:54:59 [SEVERE] [ForgeModLoader] The world 3e6abeb4 (world) has leaked.

Install Votifier

Install the plugin as normal by placing the .jar file in your plugins folder: http://dev.bukkit.org/server-mods/votifier

Then reload the server and do:

cat plugins/Votifier/rsa/public.key

Copy the code into the area of the server listing website you are using.

SimpleVoteListener

SimpleVoteListener can perform commands and broadcast messages

Load MCMyAdmin and Minecraft on server start

ssh -p port user@localhost
crontab -e

Press insert and add:

@reboot screen -dmS minecraft /home/mc/MCMA2_Linux_x86_64

Then do:

:wq

You can then if you wish do:

exit
touch /etc/init.d/minecraftd ; chown user:user /etc/init.d/minecraftd
vim /etc/init.d/minecraftd

Lock chests

Use LWC or Lockette.

To reload LWC, do /lwc admin reload

To snoop in a chest with Lockette and to do this without a broadcast message, edit this file:

/home/user/Minecraft/plugins/Lockette/config.yml

And edit the following:

allow-admin-snoop: true
broadcast-snoop-target: ''

Kill all MCMA processes

ps aux|grep MC|grep x86|awk {'print $2'}

Results of the above command.

for a in `!!`
for a in `ps aux|grep MC|grep x86|awk {'print $2'}`
> do
> kill -9 $a
> done
ps aux|grep MC|grep x86|awk {'print $2'}

McMyAdmin

Help command

In console:

/?

Permissions issue

One issue we have ran into is when running McMyAdmin and PermissionsEx at the same time is, if you add a user, group or permission via McMyAdmin, it writes the permissions.yml to PermissionsEx with the user but with no group in between the "" parts.

To avoid this, add users/groups/permissions via /pex in the server console or in-game. To reload do /pex reload instead of /reload

Other

If you make a group that is a 'default' group (Like the Everyone group is by default) - MCMA transparently renames it to 'default' when using PermissionsBukkit as PB requires that it's called Default for people to be a member automatically.

Migrate from one *nix server to another

scp / rsync the data in the Minecraft directory across. Then do:

apt-get install unzip
apt-get install openjdk-7-jre openjdk-7-jdk
cd /usr/local
wget http://mcmyadmin.com/Downloads/etc.zip
unzip etc.zip

Go to serverIPaddress:8080 in your browser. To login, check the details in McMyAdmin.conf. To change the password you need to stop McMyAdmin:

/quit in console

The file stores the password as MD5, to convert your password use this: http://www.md5hashgenerator.com/index.php

Multiverse

This page has been moved to the above link as our server does not used Multiverse any more, it used Multiworld.

Multiworld

Creating worlds:

End world (type = end):

/mw create WorldName Type

Import world

If you have old worlds say from Multiverse, when the server is restarted Mulitworld will unload these worlds and not show up in /mw list. Therefore you need to backup your worlds and in game/console do:

/mw create OriginalWorldName

Where OriginalWorldName is the name of the world as it was/is and it will load it from now on and be viewable in /mw list

Ensure the permissions are correct!

List worlds

/mw list

Teleport to another worlds

/goto WorldName

Reload command

http://www.minecraftforum.net/topic/1506590-warning-cant-keep-up-did-the-system-time-change-or-is-the-server-overloaded

v

http://forums.bukkit.org/threads/petition-to-remove-the-reload-command.43212

Restart required

If you use PermissionsBukkit with McMyAdmin, if you make a change you normally need to restart the Minecraft server to get it to see the changes.

A huge advantage of setting the Permissions Export to PermissionsEx is when a permission is added to McMyAdmin it automatically reloads the configuration, this is shown in the console by:

[INFO] Permissions file successfully reloaded
[INFO] Permissions reloaded

If you op or de-op a player from ops.txt and the Administrators group in McMyAdmin.

To set negative permissions in PermissionsEx, use - -permission before the other permissions.

Restore backup from McMyAdmin

mkdir BACKUPOFWORLDShhmm
cp -v world world_nether world_the_end BACKUPOFWORLDShhmm/ -R
mkdir movedawayworlds
mv world world_nether world_the_end movedawayworlds

Then restore the backup via the McMyAdmin control panel.

Security

To check when a player was last online, their IP address, what world they are in, do:

/seen playername

Useful:

screen -xr mcmonitor
CTRL A + D
screen -xr mysqlmcmon

cd /home/mc/Minecraft
cat server.log | grep "YYYY-MM-DD" | grep User | grep -v indestructible
cat server.log | grep User | grep -v 'indestructible\|fell from a high place'

Hawkeye

Log everything:

Install Hawkeye by doing this manually or through a server control panel. In Unix, do:

/home/user/Minecraft/plugins/HawkEye# cat config.yml

log:
  lava-bucket: true
  pvp-death: true
  other-death: true
  chat: true
  join: true
  open-container: true
  container-transaction: true
  teleport: true
  sign-place: true
  sign-break: true
  flint-steel: true
  block-place: true
  block-break: true
  enderman-pickup: true
  spawnmob-egg: true
  crop-trample: true
general:
  max-lines: 0
  log-item-drops-on-death: true
  cleanse-period: 20m
  cleanse-age: 0
  delete-data-on-rollback: true
  log-ip-addresses: true
  debug: false
  debug-level: low
  max-radius: 0
  give-user-tool: true
  tool-block: '17'
  default-here-radius: 5
  default-tool-command: ''
  check-for-updates: true
  log-delay: 2
mysql:
  hawkeye-table: hawkeye
  port: 3306
  player-table: hawk_players
  username: root
  world-table: hawk_worlds
  hostname: localhost
  max-connections: 10
  password: 'InsertMySQLPasswordHere'
  database: hawkminecraft #you can rename this if you wish
ignore-worlds:
- thisworldisignored
- soisthisone
command-filter:
- /login
- /restartsrv
- /register
- /spawn
block-filter:
- NONE
containertransaction-filter:
  chest: true
  doublechest: true
  furnace: true
  dispenser: true
version: 1.1.0

Create the database:

mysql -p
create database hawkminecraft;
show databases;
use hawkminecraft
show tables;

This may be empty. If so (more than likely), log into your minecraft server and do /reload. Then go back into MySQL:

use hawkminecraft
show tables;
+-------------------------+
| Tables_in_hawkminecraft |
+-------------------------+
| hawk_players            |
| hawk_worlds             |
| hawkeye                 |
+-------------------------+
select * from hawk_players;
select * from hawk_worlds;
select * from hawkeye;
quit

And you can now do /hawk in game. To check a block, do /hawk tool , then left click a block and it will show you the block information.

Get table structure and players

desc hawkeye; select * from hawk_players;

Look at logs

select * from hawkeye ORDER BY data_id DESC LIMIT 100000;

See region information

/region info area

It should output something like:

Region: area, type: shape, Priority: X
Flags: use: ALLOW, mob-spawning: DENY (OR ALLOW)
Bound: (x) (z)

Set flyspeed

Default is 1

For yourself:

/flyspeeed 2

For others:

/flyspeed 2 playername

Set warps

/setwarp NewWarpName

Go to warps:

/warp WarpName

List warps:

/warp

If you have per-warp-permission set to true in the config.yml then you can limit what warps players can use. This also controls what players would see with /warp, hence why both essentials.warp and essentials.warp.list are used.

Tools

ASCII SSH Bukkit Menu (via screen)
Init script

tmux

Using it

http://unix.stackexchange.com/questions/13953/sending-text-input-to-a-detached-screen/13954#13954

Update CraftBukkit

Stop the server, then do:

mv craftbukkit.jar versioncraftbukkit.jar
wget http://dl.bukkit.org/latest-rb/craftbukkit.jar

Or download the development/beta build and do:

mv craftbukkit-dev.jar craftbukkit.jar

Start the server

Log out and back into MCMyAdmin.

World Edit

Place .schematic files in /home/user/Minecraft/plugins/WorldEdit/schematics

Import them by doing:

//schematic load filename

Then you can do //paste in Minecraft to paste it into the world where you are.

Fill an area

//wand

Select position 1 and 2. Then do:

//set block

Unbind a tool/block

If for example you accidentally do //fill block (e.g. sand), and each time you right click with a tool/block or your hand, clear it by doing:

/none

World Guard

To protect an area, do:

//wand

Then click the first position then the second position with the wooden axe.

If you only do one layer, you can do //expand to go up or down, e.g.:

//expand UpValue DownValue up
//expand 10 0 up

This would expand up 10 blocks from the single layer but do 0 down.

Then do:

/region define newnameforarea owner

Owner can be left blank.

To get information on the area you just created, do:

/region info newnameforarea

Rename region

You cannot do this without editing the database manually. If the area is not too big, just remove it and re-add it.

If you do edit the entry in the id column of the region table of the worldguard (by default) database, just do /worldguard reload in-game after you have changed it.

Set flags

To set flags, see this page: http://wiki.sk89q.com/wiki/WorldGuard/Regions/Flags

To stop building and PvP but to allow use, you would do:

/rg flag areaname build deny
/rg flag areaname pvp deny
/rg flag areaname use allow

WorldGuard Block Restricter

This requires WorldGuard Custom Flags installing too.

To only allow a specific type of block you need to:

• set build allow in WorldGuard: /rg flag areaname build allow
• then deny all blocks via WorldGuard Block Restricter using /rg flag areaname deny-blocks any
• then allow the blocks you want via WorldGuard Block Restricter using /rg flag areaname allow-blocks dirt