Server

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This page is for the set up of the default KAG Server and then configuring it. For minimum requirements, installation, managing stability and configuration this is the right page.

Server Requirements

The King Arthur's Gold Alpha Server is a relatively lightweight, 32-bit command line application. Freely distributed, this program allows anybody with an internet connection and a computer to host their own King Arthur's Gold server.

Note: There is very little official documentation for the KAG server. As a result, the majority of this document was created from observation, trial and error. Use at your own risk.

Dedicated Servers

Software

  • The KAG server can run on almost all OS Linux, Windows, or Mac.
  • The recommended operating system is Linux, specifically Ubuntu.

Lowest Hardware

  • RAM: At least 128MB
  • CPU: At least 1 core clocked @ 1Ghz

Recommended Hardware

  • RAM: 512MB
  • CPU: 1 cores clocked @ 2Ghz

Network

  • Internet Connection speed per player scales with the number of players:
  • Upload to each player: (number of players - 1) * 0.3 kb/s
  • Download from each player: 0.5kb/s

Ports

  • Firewall tolerant means that a typical connection-oriented (SPI) firewall will allow that port through. Depending on the firewall, all ports may need to be forwarded in UDP.
Description Modifiable? Firewall Tolerant?
50301/udp Used to listen for game connections. yes no
50301/tcp Used to listen for remote admin (tcp rcon) connections. yes no
50328/udp Used to communicate with clients. yes yes
80/tcp Used for autoupdates no yes
443/tcp Used for API (server list, auth, minimaps, etc) server communication no yes

Residential Connections

For those hosting on residential internet connections:

  • Make sure that your computer has at least the above specifications.
  • Keep in mind that many ISPs forbid running any kind of server, including a KAG server, they may block certain ports and dynamically assign IP addresses.

Installation

Port Forwarding

Router

As said before KAG Servers require various ports to be open for it to run properly. If you are using a router, it most likely has its own firewall. Unfortunately since there are many router manufacturers, its almost impossible for a universal guide that would offer step-by-step instructions on how to set up these 'port forwards'. Please consult your router manufacturer's website for more precise information on how to accomplish this.

Windows Firewall

If you are running a Windows OS this is most likely active on your computer blocking certain ports . The following steps were done on a Windows 7 computer but other Windows OS should be nearly identical.

  1. Go to Control Panel and open the Security and Security tab.
  2. Click on "Windows Firewall".
  3. Click on "Advanced settings" on the left hand side column.
  4. Right click on the "Inbound Rules" button, in the left hand side column, and select "New Rule..."
  5. Select "Port" and click "Next".
  6. Type in the port you wish to allow (they are found above) and click "Next".
  7. Select "Allow this connection and click "Next"
  8. (Recommended) Select "Domain", "Private" and "Public"
  9. Type in a Name and click "Finish.
  10. Repeat steps 4-9 for all the ports

Mac Firewall

  1. Download Portmap: http://www.macupdate.com/app/mac/27342/port-map/
  2. Next, decompress the archive. This can be done with many different programs, including PeaZip.
  3. Launch Portmap.
  4. Open the required ports.

Antivirus Firewall

Like Windows Firewall, if you have an antivirus it most always has a firewall. Unfortunately since there are many antivirus products on the market, its almost impossible for a universal guide that would offer step-by-step instructions on how to set up these 'port forwards'. Please consult your antivirus brand's website for more precise information on how to accomplish this.

Linux Install

This guide is written for 32-bit Ubuntu Linux. To run on 64-bit Ubuntu Linux, the ia32-libs package must be installed.

  1. Do this step if you have a 64-bit OS. Install ia32-libs:
    sudo apt-get install ia32-libs
  2. Download the server:
    wget http://dl.kag2d.com/kag-linux32-dedicated-latest.tar.gz
  3. Next, decompress the archive.
    tar -zxf kag-linux32-dedicated-latest.tar.gz
  4. Change to the new directory:
    cd kag-linux32-dedicated
  5. Run your server:
    ./KAGdedi

  6. Your default KAG Server is now running.

Windows Install

  1. First, download the server: http://kag2d.com/en/download
  2. Next, decompress the archive. This can be done with many different programs, including PeaZip.
  3. Open the folder the archive was extracted into.
  4. Run your server by running dedicatedserver.bat.
  5. Your default KAG Server is now running.

Mac Install

Due to their similarities, the installation instructions for Linux should apply for Macs, though Mac does not currently have a dedicated server option. If that doesn't work try this:

  1. Download Trelawney's Dedicated OSX Server: http://dl.dropbox.com/u/23114384/kag/osx_dedicated.zip
  2. Make sure that KAG is in your applications folder.
  3. Next, decompress osx_dedicated.zip. This can be done with many different programs, including PeaZip. Then lanch it.
  4. It will says "Make sure to edit dedicated_autoconfig.gm" and a copy of KAG launches.
  5. Your default KAG Server is now running.

Configuration

The KAG server is configured using text files. Customizing a KAG server installation involves modifying the variables in these files. There are two ways to do this: Manually or by using a Configuration Tool. Of the two, a tool is far the fastest and easiest method, yet manual returns greater results.

JackD's/Maqq's Tool

Windows GUI

Requirements:

  • NET Framework 2.0 or higher

Installation:

  1. Download the tool: http://dl.dropbox.com/u/65858755/KAGServerConfigTool/KAG_Server_Config_Tool.zip
  2. Extract it and copy the contents into your KAG Servers root folder (e.g. C:\KAG).
  3. Run KAGServer.exe
  4. On first start you should go to the "Help" tab and select "Check for updates" to make sure you are using the newest version of the tool.
  5. Once the update has finished, follow the GUI's instructions and run the server.

Linux/Mac GUI

Requirements:

  • Mono 2.10.8

Installation:

  1. Download the tool: http://dl.dropbox.com/u/65858755/KAGServerConfigTool/KAG_Server_Config_Tool.zip
  2. Extract it and copy the contents into your KAG Servers root folder
  3. Change to the directory in the console, e.g.:
    cd kag_linux
  4. Make it executable:
    chmod +x ./RunKAGServerCT.sh
  5. Start the app executing the RunKAGServerCT.sh script on a terminal window:
     ./RunKAGServerCT.sh
  6. On first start you should go to the "Help" tab and select "Check for updates" to make sure you are using the newest version of the tool.
  7. Once the update has finished, follow the GUI's instructions and run the server.

Manual

One of the most important decisions a server administrator must make is whether or not to allow the Royal Guard to police their server. Please read the opening posts in these threads (In-game moderators (AKA Royal Guard) & The Royal Guard - FAQ & Public Policy) so you can make an informed decision.

If you decide you don't want guards to moderate on your server, please ensure they are turned off in your dedicated_autoconfig.gm.

Scripts/dedicated_autoconfig.gm

This file loads the configuration for this server. More info here.

Scripts/dedicated_autostart.gm

This file is very important. If you want to change rules for your server then you have to edit the global autostartswitch variable or change the file.

See more here

Rules/MODE/MapCycle.cfg

This defines what maps are loaded for the specified mode. You must separate paths to files with semicolons. Allowed files are generators, script files and maps in png format. More info...

Rules/MODE/gamemode.cfg

There are several files that form the specific gamemode at the rules folder. If your are changing the settings for a specific gamemode it is highly recommended to change the name of the folder and point to that folder at the dedicated_autostart.cfg as a new update of KAG might reset the settings that are located at the default folders. Most variables are pretty self explanatory. Some variables you might want to change: The amount of resources every class gets during the normal game and during the warmup. (class specific)

    stone_default = 0
    wood_default = 10
    gold_default = 0
    arrows_default = 0
    bombs_default = 0  
       
    stone_warmup = 0
    wood_warmup = 10
    gold_warmup = 0
    arrows_warmup = 0
    bombs_warmup = 0

at gamemode.cfg:

# match time formula is = m*(a*sqrt(b*x)) where x = number of players in team; m = map size/difficulty 0.8<=m<=1.2;
    match_time_formula_a = 5
    match_time_formula_b = 3
    match_time_override = 0     # minutes / overrides time formula / 0 unlimited time / -1 don't override
    break_time = 9               # break_time * number of players - seconds
    break_time_static = 60               # overrides break time if present, gives break time without player count linkage
    minimum_players_inteam = 1          #when the countdown of when the warmup ends is starting  
    playerrespawn_seconds = 5.0
    nearspawn_multiplier = 3.0
    new_sacks_in_tent = yes
    heart_fallout_probability = 2               # 0 - no hearts; 1 - every death; 2.. - randomly probability of 2...    
    spawn_tent_onstart = yes

at the team files:

    unit_count = 6     # units in team = unit_count * number of players; 0 one life; -1 unlimited
     
    stone_warmup = 1500     #the amount of resources there will be at the start when new_sacks_in_tent is enabled
    wood_warmup = 2500
    gold_warmup = 100
    arrows_warmup = 500
    bombs_warmup = 0
   
    stone_amount = 150     #the amount of resources builders get when when they are at the tent when new_sacks_in_tent is disabled
    wood_amount = 250
    gold_amount = 10
    arrows_amount = 40
    bombs_amount = 0

More info...

Workshops

You are able to add workshops by editing the room's file located at Base/Entities/Rooms. You can find the default Room file a gamemode uses at gamemode.gm. See Workshop_Modding for a detailed guide on room modding in classic KAG.

A room's settings can be found at the bottom of the file, here is an example of an edited file.

# room syntax - room name; room level (0 menu - 1... upgrade); room sprite; room help text; room items/functions, item2, item3 ...; costs , , , (g gold, s stone, w wood, c coins, l level, u upgrades_from, r requires_roomname- none) ...
@$rooms = QUARTERS; Entities/Rooms/Sprites/Quarters.png; Wait inside to heal; heal; -;
          ARROW WORKSHOP; Entities/Rooms/Sprites/ArrowShop.png; $KEY7$ to make arrow; arrow; -;
          ARCHERY RANGE; Entities/Rooms/Sprites/ArcheryRange.png; Archer $KEY7$; class 0, class 1; -;
          TUNNEL; Entities/Rooms/Sprites/Tunnel.png; $KEY7$ to travel quickly; travel_right, travel_left; -;
          KNIGHT ARMORY; Entities/Rooms/Sprites/Armoury.png; Knight $KEY7$; class 0, class 2; -;
          LIBRARY; Entities/Rooms/Sprites/Library.png; Library; -; -;
          CARPENTRY; Entities/Rooms/Sprites/CarpentryShop.png; Carpentry shop; chest; -;
          MASONRY; Entities/Rooms/Sprites/MasonryShop.png; Masonry Shop; boulder; -;
          DOORWAY; Entities/Rooms/Sprites/Doorway.png; Doorway; travel_right, travel_left; -;
          BANK; Entities/Rooms/Sprites/Bank.png; Bank; -; -;
          BOMBSHOP; Entities/Rooms/Sprites/BombShop.png; No bombs for you boy; -; -;
          DEMOLITION SHOP; Entities/Rooms/Sprites/DemoShop.png; ohhhhhhhhh; keg; -;
          MECHANIC; Entities/Rooms/Sprites/MechanicShop.png; Make a portable light source!; lantern; -;
          NURSERY; Entities/Rooms/Sprites/Nursery.png; Nursery; -; -;
          SIEGE; Entities/Rooms/Sprites/SiegeShop.png; Siege Shop; -; -;
          ZOMBIE PORTAL; Entities/Rooms/Sprites/ZombiePortal.png; Buy a Greg; greg; -;
          ;
           
# room_function syntax - function name; function actor name; function config file; function icon; function make sound; function icon frame; function icon frame size; function help text; costs , , , (g gold, s stone, w wood, c coins - none) ...
@$room_functions = arrow; -; -; Entities/Items/Sprites/MaterialStacks.png; Entities/Rooms/Sounds/ArrowsMake.ogg; 10; 16; Arrow cost 0 coin; -;
                                   heal; -; -; -; Sounds/heart.ogg; 0; 0; Healing 0 coins per 1/2 heart; -;
                                   class 2; -; -; GUI/MenuItems.png; Entities/Rooms/Sounds/SwitchKnight.ogg; 12; 32; Knight; -;
                                   class 1; -; -; GUI/MenuItems.png; Entities/Rooms/Sounds/SwitchArcher.ogg; 16; 32; Archer; -;
                                   class 0; -; -; GUI/MenuItems.png; Entities/Rooms/Sounds/SwitchBuilder.ogg; 8; 32; Builder; -;
                                   lantern; genericitem; Entities/Items/Lantern.cfg; Entities/Items/Sprites/Lantern.png; Entities/Rooms/Sounds/BombMake.ogg; 0; 8; See in the dark; w20, g10, c10;
                                   travel_left; -; -; GUI/MenuItems.png; Entities/Rooms/Sounds/Travel.ogg; 1; 32; Travel Left; -;
                                   travel_right; -; -; GUI/MenuItems.png; Entities/Rooms/Sounds/Travel.ogg; 1; 32; Travel Right; -;    
                                   chest; genericitem; Entities/Items/TreasureChest.cfg; Entities/Items/Sprites/WoodChest.png; Entities/Rooms/Sounds/BombMake.ogg; 0; 8; Chest; w200, c10;
                                   keg; keg; Entities/Items/Keg.cfg; Entities/Items/Sprites/Keg.png; Entities/Rooms/Sounds/BombMake.ogg; 0; 16; ooooh!; w200, c10;
                                   boulder; boulder; Entities/Items/Boulder.cfg; Entities/Items/Sprites/Boulder.png; d; 0; 16; Make me to crush your foes!; s200, c10;
                                   greg; zombie; Entities/Actors/Greg.cfg; Entities/Actors/Sprites/Greg.png; d; 0; 32; Greg; g240, s240, w240, c10;
                                   
# - nothing
# - in room_functions as texture = don't add to menu - collide function
# d default build sound                            
# c*10 - buy as much as possible, max 10

Builder blocks

The builder_blocks.cfg file you point to at your specific builder's config shows what blocks a builder can make. You can only add most of the custom blocks when gold_only = 1. Example of a modified builder_blocks:

  # builder blocks
 
  # name; offset from world.png; resource_type 1; resource_type 2; resource_cost 1; resource_cost 2; requires horizontal num; requires vertical num
 
  @$blocks =  
  Door;                     128;     1;    -1;    0;   0;    1;    1;
  Trap Bridge;              176;     1;    -1;    0;   0;    1;    1;
  Ladder;                   144;     1;    -1;    0;   0;    1;    1;
  Wooden Back Wall;         205;     1;    -1;    0;   0;    1;    1;
  Castle Back Wall;          64;     0;    -1;    0;   0;    1;    1;
  Mossy Castle Back Wall;   227;     0;    -1;    0;   0;    1;    1;
  Wooden Wall;              196;     1;    -1;    0;   0;    1;    1;
  Castle Wall;               48;     0;    -1;    0;   0;    1;    1;
  Mossy Castle Wall;        224;     0;    -1;    0;   0;    1;    1;
  Gold Bullion;             160;     2;    -1;    0;   0;    1;    1;
  Workshop;                 146;     1;    -1;    0;   0;    3;    3;
  Spikes;                   167;     0;    -1;    0;   0;    1;    1;
  Dirt;                      16;    -1;    -1;    0;   0;    1;    1;
  Background Dirt;           32;    -1;    -1;    0;   0;    1;    1;
  Grass;                     25;    -1;    -1;    0;   0;    1;    1;
  Rubble;                   155;    -1;    -1;    0;   0;    1;    1;
  Gold;                      80;    -1;    -1;    0;   0;    1;    1;
  Rock;                      96;    -1;    -1;    0;   0;    1;    1;
  Thickrock;                208;    -1;    -1;    0;   0;    1;    1;

                                         
# resource_type:
#                 none = -1
#                 res_stone = 0
#                 res_wood = 1
#                 res_gold = 2
#                 res_arrows = 3
#                 res_bombs = 4


Remote Control

A server can be controlled in-game. While connected to the server, press the HOME key to open the console. A full list of available rcon commands can be found here. In order to remote control a server however you must be set as an administrator in the servers configuration files. The system KAG uses for this is found bellow. You are also able to remotely control your server when you've set sv_tcpr to 1. More info at Remote Administration

Security Levels

King Arthur's Gold uses a system called 'Security Levels' (or 'seclevs' for short) to manage player access to various features on its servers. There are default, hardcoded levels setup but it is strongly advised that server owners take the time to setup their own specific seclev definitions.


Read more...

Blacklisting & Whitelisting

A player blacklists is the list of players who are not allowed to play on a given server. A whitelist is the inverse of a blacklist; if enabled, only those on the whitelist will be allowed to play.

The contents of the file securitysetup.cfg in kagServer/Base/Security (where kagServer is the path to the kagServer's directory) should look something like this:

# Security setup

# Set to 1 to allow only the names in the whitelist or 0 to disallow the names in the blacklist
whitelist_active = 0
whitelist_file = Security/whitelist.cfg
blacklist_file = Security/blacklist.cfg

# Path to file where security levels are defined
seclevs_file = Security/seclevs.cfg

Note: The whitelist overrides the blacklist if enabled.

Whitelist

If you are using the whitelist, then at the path specified in whitelist_file you can create a file that looks something like this:

# Whitelist format: name; anothername; yetanothername;
whitelist =
name;
anothername;
yetanothername;

Simply add usernames in this way to allow only those players access to the server.

Blacklist

If you are using the blacklist, then at the path specified in blacklist_file you can create a file that looks something like this:

# Blacklist format: name; IP; expiration time and date h:m:s:d:M:y; reason;
# IP of 0.0.0.0 means no IP is banned, and the user is just banned by username.
# Blank username means no user is banned for that entry and it's just by IP.
# The time is in C++ struct tm format except for the year, which is human readable. Get relative times from /listbans on the console.
#       eg: 10:30:0:31:11:2050 is 10:30 AM on the 31st of December 2050AD

blacklist =
name1; 0.0.0.0; 10:30:0:31:11:2050; Banned;
name2; 12.34.45.78; 10:30:0:31:11:2050; Banned;

Simply add player details in the format described to ban them from the server. Alternatively, just use the ban menus or rcon commands in game to ban users. Note that January is the 0th month

Managing Instability

As Alpha software, the KAG server in certain builds is very unstable. Build are sometimes crash prone but it varies from release to release due to new features mixed with bug fixes. As such, it is recommended practice to run the server in a keepalive script, which will restart it whenever it crashes. In addition, many people restart their server once a day, during the hours of least usage, to help decrease the risk of a crash while the server is being played upon.

Keep-alive Scripts

Linux/Mac

Trelawney's Keepalive Script, dedi.sh, will restart the KAG server 5 seconds after it crashes. Download it here.
If retyping/using copy and paste, make sure word wrapping is turned off in you text editor. (In nano, use nano -w dedi.sh .)
Once created, be sure to make the script executable with chmod +x dedi.sh.

#!/bin/bash
echo "Running KAG dedicated server"
echo "TO SET IP/PORT/SLOTS/PASSWORD ADD THESE COMMAND PARAMS: ip 127.0.0.1 port 50213 slots 32 password pass123"
mv KAGdedi.tmp KAGdedi
chmod +x KAGdedi
until ./KAGdedi nolauncher autostart Scripts/dedicated_autostart.gm autoconfig Scripts/dedicated_autoconfig.gm; do
        echo "KAG server running"
        sleep 5
done

To use, run the script: ./dedi.sh instead of the usual ./KAGdedi

Adapting for Maqq's Configuration Tool

To use a configuration generated by Maqq's Configuration Tool, replace line 6 in the above script with:

./KAGdedi autostart Scripts/custom_autostart.gm autoconfig Scripts/custom_autoconfig.gm

Windows

The Beaz's Keepalive Script, dedi.bat, will restart the KAG server 5 seconds after it crashes. To use, create a text file, paste/type in the script below, and save it as dedi.bat.

@ECHO off
 
:restart
echo (%time%) Server Started - close this window to prevent restart.
 
start /wait KAG.exe nolauncher autostart Scripts/dedicated_autostart.gm autoconfig Scripts/dedicated_autoconfig.gm
 
echo (%time%) WARNING: Server closed or crashed, restarting.
 
goto restart

To make it work on Windows Vista or 7 you need to disable Windows Error Reporting. To do so:

  • Run regedit.exe
  • Modify HKCU\Software\Microsoft\Windows\Windows Error Reporting\DontShowUI entry with value 1

Adapting for Maqq's Configuration Tool

To use a configuration generated by Maqq's Configuration Tool, replace line 6 in the above script with:

start /wait KAG.exe nolauncher autostart Scripts/custom_autostart.gm autoconfig Scripts/custom_autoconfig.gm

Daily Server Restarts

If a KAG server is running in a keepalive script, a scheduled task that kills the server once a day is, effectively, a daily restart because the keepalive script will automatically restart the server.

Linux/Mac - Cronjob

This script will kill all instances of KAGdedi at 3 AM.

  1. Use crontab -e to create a new cronjob. This will open your default text editor.
  2. In the text editor, type:
    0 3 * * * pkill -1 KAGdedi
  3. Close editor. Cronjob installed!

Windows - Task Scheduler

"Needs info"

Checking for Updates

So far there is not a public script to restart a server when an update is available, but the following logic should be able to be combined with a restart script above to restart a server once an update is available.

curl -s http://update.kag2d.com/linux32-dedicated-release/App/version.txt | head -n1 | cut -d ' ' -f2
1337154874-636-6e12e0f833b0

When that string (the 2nd whitespace-delimited element of the first line of that URL) changes, an update is available. The first number is the unix timestamp of the build, the 2nd is the code revision, the 3rd is a hex identifier used internally by the developers. You should be able to just monitor for a change. You could also use logic involving watching the first two parts of the string to see if they increment, but the format of this string may change in the future.

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