System Information
| Field | Value |
|---|---|
| Operating System | Linux - Debian GNU/Linux 12 on x86_64 |
| Product | AMP ‘Phobos’ v2.6.0.12 (Mainline) |
| Virtualization | Docker |
| Application | Sons Of The Forest |
| Module | GenericModule |
| Running in Container | Yes |
| Current State | Ready |
Problem Description
Issue
I am hosting a Sons of the Forest dedicated server on Linux. The server fails its self-test, stating that UDP ports 8766, 27016, and 9700 are closed. Despite multiple troubleshooting steps, the game server does not bind to the assigned ports, making it inaccessible externally.
Reproduction Steps
- Checked firewall (UFW) status – It’s inactive, so firewall is not blocking ports.
- Verified that no process is listening on port 8766 (ss -tulnp | grep 8766 returned nothing).v
- Tried different ports (e.g., 8888) – Still not working.
- Checked Sons of the Forest server logs – Showed Steam API errors & ports closed.
- Verified AMP instance logs – Confirmed that networking self-test fails (ports closed).
- Reinstalled/Validated game files with SteamCMD – Success but no change.
- dited the Sons of the Forest server config manually – Ports set correctly in server.cfg.
- Restarted the AMP instance multiple times – No effect.
- Checked for port conflicts (lsof -i :8766) – Nothing is using the ports.