Setting up your ARMA Reforger server

If you want to avoid setting up your own server, you will be able to order yours from us directly here! https://low.ms/game-servers/arma-reforger-server-hosting

Prerequisite

• SteamCmd

Steam App ID: 1874900

Getting server files

Downloading the files via SteamCMD

1. Open SteamCMD:

   • On Windows: Launch steamcmd.exe.
   • On Linux: Run ./steamcmd.sh.

2. Login to Steam:

   • Login anonymously (if the app supports it):

     login anonymous
     

   • OR, login with your Steam account credentials:

     login <your_steam_username>
     

3. Set the Download Directory (optional):

   • Specify the directory where the app will be installed:

     force_install_dir path/to/directory
     

4. Download the App:

   • Run the following command to download and validate the app:

     app_update 1874900 validate
     

5. Wait for the Installation:

   • Allow SteamCMD to complete the download and installation process.

6. Exit SteamCMD:

   • After the installation is complete, exit SteamCMD:

     exit
     

Basic configuration of the server

NOTE: You may need to run the server once for the configuration files to be generated.

The Server exe uses the -config startup parameter to target the configuration file.

Server Config - server_config.json

https://community.bistudio.com/wiki/Arma_Reforger:Server_Config

{
  "publicAddress": "92.118.16.142",
  "publicPort": 2402,
  "a2s": {
    "address": "92.118.16.142",
    "port": 17877
  },
  "rcon": {
    "address": "92.118.16.142",
    "port": 2412,
    "password": "CHANGEME!123#",
    "permission": "monitor",
    "blacklist": [],
    "whitelist": []
  },
  "game": {
    "name": "Rent a server from https://low.ms",
    "password": "",
    "passwordAdmin": "",
    "admins": [],
    "scenarioId": "{ECC61978EDCC2B5A}Missions/23_Campaign.conf",
    "maxPlayers": 128,
    "visible": true,
    "gameProperties": {
      "serverMaxViewDistance": 2000,
      "serverMinGrassDistance": 100,
      "networkViewDistance": 500,
      "disableThirdPerson": false,
      "fastValidation": true,
      "battlEye": true,
      "VONDisableUI": false,
      "VONDisableDirectSpeechUI": false,
      "VONCanTransmitCrossFaction": false
    },
    "mods": []
  }
}

This is our example config, the main ones to get correct are the publicAddress, publicPort, the a2s section (what steam uses to query) and the "game"."name" field.

Top-Level Settings

• publicAddress: The public IP address of your server. Players will use this to connect.
• publicPort: The public port used by the server for game connections.

A2S Section

• address: The IP address used for A2S (Steam Query Protocol), allowing server listing in external services.
• port: The port used for A2S queries.

RCON Section

• address: The IP address for RCON (Remote Console) connections.
• port: The port for RCON access.
• password: The password required to authenticate RCON connections. (Change this for security purposes!)
• permission: Defines the level of access for RCON connections. Options include monitor, user, or admin.
• blacklist: An array of IPs or users blocked from RCON access.
• whitelist: An array of IPs or users allowed RCON access, even if a blacklist exists.

Game Section

• name: The name of your server, displayed in the server browser.
• password: The password required to join the server. Leave blank for a public server.
• passwordAdmin: The password for administrative access to server commands.
• admins: A list of usernames granted admin access.
• scenarioId: Specifies the mission or scenario the server will run. Format includes the ID and path (e.g., {ECC61978EDCC2B5A}Missions/23_Campaign.conf).
• maxPlayers: The maximum number of players allowed on the server.
• visible: Determines whether the server is visible in the server browser (true for visible, false for hidden).

Game Properties

• serverMaxViewDistance: Maximum distance (in meters) players can see in-game.
• serverMinGrassDistance: Minimum distance (in meters) grass will render from the player.
• networkViewDistance: Network view distance (in meters) for server-client updates.
• disableThirdPerson: Toggles third-person mode (true disables, false enables).
• fastValidation: Enables faster client validation on connection (true or false).
• battlEye: Enables BattlEye anti-cheat (true or false).
• VONDisableUI: Disables the Voice Over Network (VON) UI (true or false).
• VONDisableDirectSpeechUI: Disables the UI for direct speech in VON (true or false).
• VONCanTransmitCrossFaction: Allows VON transmission across factions (true or false).

Mods Section

• mods: A list of mods to load on the server. Each mod entry includes its ID, name, and version. Example:

  [
    { "modId": "591AF5BDA9F7CE8B", "name": "Capture & Hold", "version": "1.0.0" }
  ]
  
  
  

Starting & Joining the server

Your server will now show up in game, you will also be able to directly connect using the public address and public port you picked earlier.