HOST ARCHITECTURE: MULTI-SERVER DOCKER & BARE-METAL

Multi-Server Port Collision Detector

Detect binding collisions and socket conflicts when hosting multiple game server instances on a single physical host or VPS. Add your server instances, customize IP addresses and ports, and generate unified firewall rules.

Multi-Server Scenarios & Presets

Rapid Test Configurations

CRITICAL: 1 PORT CONFLICT DETECTED

Action Required Before Launch

PORT 27015 / UDP ARK Survival #1 <-> CS2 Competitive #1

Port 27015/UDP is claimed by 'ARK Survival #1' (Steam query port) and 'CS2 Competitive #1' (Game port / SRCDS).

Resolution: Change 'CS2 Competitive #1' port 27015 to 27016, or bind one instance to a dedicated secondary IP.

Configured Server Instances

2 active instances mapped on host network

ARK: Survival Evolved

Bind IP:

7777 UDP

Game client port

7778 UDP

Raw UDP socket (game + query)

27015 UDPCOLLISION

Steam query port

Counter-Strike 2

Bind IP:

27015 TCP+UDPCOLLISION

Game port / SRCDS

27020 UDP

GOTV / spectator relay

Tactical Firewall Rule Exporter

Multi-Engine Export

# ================================================================
# DustBowl Warden Tactical Firewall Rules - UFW
# Generated at: 2026-11-05 17:18:44 UTC
# ================================================================

# Server Instance: ARK Survival #1 [ARK: Survival Evolved] (Bind: 0.0.0.0)
sudo ufw allow 7777/udp comment 'ARK Survival #1 - Game client port'
sudo ufw allow 7778/udp comment 'ARK Survival #1 - Raw UDP socket (game + query)'
sudo ufw allow 27015/udp comment 'ARK Survival #1 - Steam query port'

# Server Instance: CS2 Competitive #1 [Counter-Strike 2] (Bind: 0.0.0.0)
sudo ufw allow 27015/tcp comment 'CS2 Competitive #1 - Game port / SRCDS'
sudo ufw allow 27015/udp comment 'CS2 Competitive #1 - Game port / SRCDS'
sudo ufw allow 27020/udp comment 'CS2 Competitive #1 - GOTV / spectator relay'

# Reload UFW to apply rules:
sudo ufw reload
sudo ufw status verbose