This guide covers how to set up your Arma Reforger dedicated server on Legion Hosting, configure startup variables, edit the server config, select scenarios, connect to your server, and manage network settings. For admin setup, RCON access, and mod installation, see Arma Reforger Admin and Mod Installation.

1. First Start

1. Log in to GPanel and select your Arma Reforger server.
2. Go to the Startup tab and review the configurable variables (see the table in Section 2).
3. Set SERVER_NAME to a name for your server.
4. Set SERVER_PASSWORD if you want to restrict access. Leave it blank for a public server.
5. Set MAX_PLAYERS to the desired player count for your server.
6. Return to the Console tab and click Start.
7. Wait for the console to display that the server has finished loading. The first start may take several minutes as the server downloads required game data and generates its initial configuration.

2. GPanel Startup Variables

The following variables are available in the GPanel Startup tab. These are passed to the server on each start.

3. Server Configuration (config.json)

The main server configuration file is config.json, located in the server's root directory. This file controls all server behaviour including game settings, scenario selection, admin access, and network configuration.

File Location

config.json

Open this file using the Files tab in GPanel or connect via SFTP. If the file does not exist, start and stop the server once to generate it.

Key Settings

Example config.json

{
  "bindAddress": "0.0.0.0",
  "bindPort": 2001,
  "publicAddress": "",
  "publicPort": 2001,
  "game": {
    "name": "My Legion Reforger Server",
    "password": "",
    "passwordAdmin": "YourAdminPassword",
    "scenarioId": "{ECC61978EDCC2B5A}Missions/23_Campaign.conf",
    "maxPlayers": 64,
    "visible": true,
    "crossPlatform": true,
    "supportedPlatforms": ["PLATFORM_PC", "PLATFORM_XBL"],
    "gameProperties": {
      "serverMaxViewDistance": 2500,
      "serverMinGrassDistance": 50,
      "networkViewDistance": 1500,
      "disableThirdPerson": false,
      "fastValidation": true,
      "battlEye": true
    },
    "mods": []
  },
  "a2sQueryEnabled": true
}

4. Scenario Selection

Arma Reforger uses scenarios to define the game mode and map. Set the scenarioId in your config to one of the following:

5. How to Connect

Option A -- In-Game Server Browser

1. Launch Arma Reforger.
2. From the main menu, select Multiplayer and then Server Browser.
3. Use the search bar or filters to find your server by name.
4. Select your server and click Join. Enter the server password if prompted.

Option B -- Direct Connect

1. Launch Arma Reforger.
2. From the main menu, select Multiplayer and then Direct Join.
3. Enter your server's IP address and port from GPanel's Network tab:

   <your-server-ip>:<port>

4. Enter the server password if one is set, then click Join.

6. Network Settings

The network section of config.json controls how the server communicates with players and the master server list.

7. Troubleshooting

Server Not Appearing in the Browser

• Confirm the server is fully started in GPanel. Check the console for errors.
• Verify that visible is set to true in config.json.
• Ensure a2sQueryEnabled is true.
• The server browser can take a few minutes to list a newly started server. Try direct connect while waiting.

Server Crashes on Startup

• Check the console log for error messages. The most common cause is invalid JSON syntax in config.json.
• Validate your config.json with a JSON validator such as jsonlint.com.
• Verify the scenarioId is a valid scenario identifier. An incorrect ID will prevent the server from loading.
• Try deleting config.json and restarting to generate a fresh configuration.
• If the crash persists, open a support ticket with your server IP and any error messages from the console.

Players Cannot Connect

• Verify the server is running and check GPanel's Network tab for the correct IP and port.
• Check that the server password is correct (case-sensitive).
• If the server uses mods, players must have all required mods installed. Missing mods will prevent connection.
• Ensure both the server and client are running the same game version.
• If BattlEye is enabled, players must have BattlEye installed and running on their client.

Related Articles

• Arma Reforger Admin and Mod Installation
• How to Find Your Server IP and Port
• How to Upload Files via SFTP
• Server Startup Guide

Need Help?

If you run into issues with your Arma Reforger server that are not covered here, open a support ticket and include your server IP, a description of the problem, and any relevant error messages from the GPanel console.