import requests API_URL = "http://localhost:4040/api/tunnels"
response = requests.get(API_URL)
tunnels = response.json()["tunnels"] for tunnel in tunnels: if tunnel["status"] == "active": print(f"Stopping tunnel: {tunnel['name']}") requests.delete(f"{API_URL}/{tunnel['name']}")
import requests API_URL = "http://localhost:4040/api/tunnels"
response = requests.get(API_URL)
tunnels = response.json()["tunnels"] for tunnel in tunnels: if tunnel["status"] == "active": print(f"Stopping tunnel: {tunnel['name']}") requests.delete(f"{API_URL}/{tunnel['name']}")
import requests API_URL = "http://localhost:4040/api/tunnels"
response = requests.get(API_URL)
tunnels = response.json()["tunnels"] for tunnel in tunnels: if tunnel["status"] == "active": print(f"Stopping tunnel: {tunnel['name']}") requests.delete(f"{API_URL}/{tunnel['name']}")
# Crontab: check every hour, kill active tunnels
0 * * * * ngrok api tunnels list | grep -q 'active' && ngrok api tunnels stop --all
# Crontab: check every hour, kill active tunnels
0 * * * * ngrok api tunnels list | grep -q 'active' && ngrok api tunnels stop --all
# Crontab: check every hour, kill active tunnels
0 * * * * ngrok api tunnels list | grep -q 'active' && ngrok api tunnels stop --all
{ "rate_limit": { "requests_per_second": 10 }
}
{ "rate_limit": { "requests_per_second": 10 }
}
{ "rate_limit": { "requests_per_second": 10 }
} - Prometheus + Grafana for monitoring tunnel activity and setting alerts
- OAuth2 Proxy in front of exposed services for authentication
- VLANs to isolate services exposed via Ngrok from the rest of your network
- Traefik or Nginx as a reverse proxy for SSL termination, auth, and rate limiting - Every active tunnel is an open door. Close what you're not using.
- Ngrok bypasses your firewall — treat tunnels as external access points, not internal tools.
- Automate cleanup with cron or systemd. Don't rely on memory.
- Use open-source monitoring (Prometheus/Grafana) instead of expensive enterprise tools.
- Layer your defenses: VLANs, reverse proxies, authentication, rate limiting.
- Consider a zero-trust approach even in your homelab — verify every connection.
