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On a FREAKHOSTING Arma 3 server, you set startup parameters with the variables on the Startup page, not by editing the command line. The panel turns them into parameters such as -mod, -serverMod, -limitFPS, -loadMissionToMemory and -autoInit, and writes them to startup_params_server.txt each time the server starts. Changes apply after a restart.

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How to change a startup parameter

1

Open Startup

Open your server in the Game Panel and click Startup. The Startup Command card at the top shows the command the server runs.
2

Change the variable

Change a field, switch a toggle or pick from a list. The value saves when you click outside the field.
3

Restart the server

Restart so the new value is used. The console prints the full parameter line after Starting server with the following startup parameters:.
Arma 3 Startup page with Server Binary, Max Players, Server Password, Modlist File, Additional Mods and Headless Clients variables

Arma 3 Startup variables in the FREAKHOSTING Game Panel

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Arma 3 Startup variables

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Which parameters are not on Startup?

These settings are in files instead: Don’t edit startup_params_server.txt or startup_params_hc.txt. The panel writes them again at every start and your changes are lost.

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Frequently asked questions

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What is the difference between -mod and -serverMod?

Mods in -mod (Modlist File and Additional Mods) must also be loaded by players. Mods in -serverMod (Server-Side Only Mods) run only on the server, so players don’t need them.

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Should I use the 32-bit or 64-bit server?

Keep arma3server_x64 unless a mod tells you to use 32-bit. The 64-bit server can use more memory.

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Why does my mod folder name have to be lowercase?

The server runs on Linux, where file names are case-sensitive. The panel asks for mod folder names with no capital letters, no spaces and not starting with a number.

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How do I make the mission start without players?

Turn on Auto Initialize Mission and set persistent = 1; in server.cfg, then restart.

Arma 3 server guide

Every Arma 3 page in one place.

Install mods

modlist.html, Additional Mods and keys.

Server FPS

Read and tune server performance.

Creator DLC

The creatordlc branch.

Startup variables

How the Startup page works.
Tested by the FREAKHOSTING team on our Game Panel on 31 October 2026 (Arma 3 dedicated server 2.22). Parameter meanings checked against the Bohemia Interactive startup parameters page. Steps may differ slightly if the game changes.

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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: October 2026