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The Nervous System: server.cfg

The server.cfg file is the primary configuration entry point for any Arma 3 Dedicated Server. It defines your server’s public identity, administrative security, networking protocols, and the mission rotation cycle. Because the Arma 3 engine is highly sensitive to syntax, a single missing semicolon or bracket here can prevent the server from booting.

Difficulty

Intermediate

Time

10 Minutes

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Essential Identity Parameters

These parameters define how your server appears in the browser and how you control it remotely. 
// Identity
hostname = "FREAKHOSTING | My Milsim Unit";
password = "";              // Leave empty for Public, fill for Private.
passwordAdmin = "SecretPW"; // Login via chat command: #login SecretPW

// Security & Networking
maxPlayers = 64;
persistent = 1;             // 1 = The mission continues running when the server is empty.
BattlEye = 1;               // 1 = Enable Anti-Cheat (Required for public listing).
verifySignatures = 2;       // 2 = V2 Mod Verification (Strictly enforce mod lists).

// Voice (VON)
disableVoN = 0;             // 0 = Built-in Voice Chat Enabled.
vonCodecQuality = 20;       // Range 1-20. 20 is max audio quality.

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Configuring Mission Rotation

The class Missions section tells the server which .pbo file to load from your /mpmissions/ directory.
1

Locate Your Mission File

Ensure your mission file (e.g., Antistasi.Altis.pbo) is uploaded to the /mpmissions/ folder.
2

Define the Template

In server.cfg, use the filename without the .pbo extension.
class Missions
{
    class Operation_One
    {
        template = "Antistasi.Altis"; 
        difficulty = "Custom"; // Must match a class in your .Arma3Profile
    };
};
3

Add Multiple Missions (Optional)

You can list multiple missions. The server will cycle to the next one in the list whenever a mission ends or the server is manually forced to cycle.

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Need Extra Help?

If you encounter any issues, our support team is ready to assist:

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Last Updated: January 2026 | Arma 3: Config syntax verified.