Doomsday Manual

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<- ^ guide:Multiplayer ^ shell_help|Shell ->

====== Running a multiplayer server ======

A //multiplayer server// is an instance of [[guide:doomsday-server]] running as a background process.


This page focuses on starting and running a server via the command line. For a GUI approach, see [[shell_help|Running a server using the Shell]].

===== How to set up a server =====

==== Requirements ====


  *  Both client and server should have the same WAD file. For instance: the identification number for **doom2.wad** v1.9 is ''f36acb''. While the game will 'work' with differing wad files, differences in geometry can have players spawning outside the map or in walls etc.


==== autoexec.cfg ====


Best thing to do is to set up a **.cfg** file where you set all the suitable console variables for the server. Things you will need...

  *  **autoexec.cfg** (create yourself) and put the customized cvars from below into it.
  *  TCP port 13209 "open" — to find out how to open your ports see http://portforward.com/

In the "autoexec.cfg" put the lines below:

<code>net-ip-port 13209
server-game-deathmatch 1
server-game-nomonsters 1
server-name "Dew's Deathmatch game!"
server-info "Come join my game"
server-player-limit 8
server-public 1
setmap 1 1
</code>
Note: ''server-public 1''  makes the server visible to all on the master server.


=== Possible cvars for the .cfg file ===


To find all variables and commands containing the word "server", you can use the command:
  apropos server

Below is a brief list of supported variables:

<code>server-game-jump = 1
server-game-map = 0
server-game-mapcycle = "T:10 12* 11 17 18 19"
server-game-mapcycle-noexit = 1
server-game-mod-damage = 1
server-game-mod-gravity = -1
server-game-mod-health = 1
server-game-monster-meleeattack-nomaxz = 0
server-game-nobfg = 0
server-game-nomonsters = 1
server-game-noteamdamage = 0
server-game-radiusattack-nomaxz = 0
server-game-respawn = 0
server-game-respawn-monsters-nightmare = 1
server-game-skill = 3
server-info = "come join my game"
server-latencies = 0
server-name = "Example's deathmatch game"
server-password = ""
server-player-limit = 6
server-public = 1

net-dev = 0
net-ip-address = ""
net-ip-port = 13209
net-master-address = "www.dengine.net"
net-master-path = "/master.php"
net-master-port = 13209
net-name = ""
net-nosleep = 0
net-queue-show = 0

game-fastmonsters = 0
</code>

==== On the desktop ====


The best way to run a server on your desktop is to use the [[shell]]. You can specify the location of your **autoexec.cfg** using the command line option:
  
  -p some/path/autoexec.cfg


==== In a terminal / command line ====


[[guide:doomsday-server]] is intended to be run as a background process and has no UI of its own. While you can start it manually in a terminal, controlling the server is only possible using the [[Shell]].

In Unix, please refer to the manual page //doomsday-server(6)// for more information.

Brief instructions:

  -  Specifying a game is mandatory (with ''-game'').
  -  Configure the TCP (''net-ip-port'') port number. The default port number is 13209.
    * This step has to be done only once because the port numbers are saved automatically into the game config file.  You may also wish to write your own **.cfg** startup script that  executes all the necessary commands.
  -  The current map can be changed with ''setmap'' (in **autoexec.cfg**).

Example:
  doomsday-server -game doom2 -iwad ~/games/doom/DOOM2.WAD \
      -file ~/games/doom/dwango5.wad -p ~/.doomsday/conf/autoexec.cfg


==== Docker ====


If you're using [[https://en.wikipedia.org/wiki/Docker_(software)|Docker]], you may prefer hosting a Doomsday server in a container. For more information, see: [[https://github.com/ecliptik/doomsday|ecliptik/doomsday (GitHub)]].


===== Automatic map cycling =====

Set up a mapcycle:
  server-game-mapcycle "T:10 1* 11 17 18 19"

See [[map cycling]] for a description of the syntax.

Start the cycle:
  startcycle

Stop the cycle:
  endcycle

===== See also =====

  *  [[doomsday-host]]: Unix script for running dedicated servers in the background
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