import requests

for ip in ["140.44.4.81", "140.44.4.82", "140.44.4.83", "140.44.4.84"]:
    try:
        r = requests.get(f"http://{ip}:9400/metrics", timeout=2)
        print(f"{ip}:9400 -> HTTP {r.status_code}")
    except Exception as e:
        print(f"{ip}:9400 -> Not reachable: {e}")