import os
import sys
import paramiko

sys.stdout.reconfigure(encoding="utf-8")
pkey = paramiko.Ed25519Key.from_private_key_file(os.path.expanduser('~/.ssh/id_ed25519_snarfnet'))

client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect("140.44.4.11", username="root", pkey=pkey, timeout=10)

cmd = """
for p in 22 80 443 6443 10250; do
    timeout 1 bash -c "echo > /dev/tcp/140.44.4.21/$p" 2>/dev/null && echo "Port $p OPEN" || echo "Port $p CLOSED/FILTERED"
done
"""
stdin, stdout, stderr = client.exec_command(cmd)
print("PORT SCAN:")
print(stdout.read().decode())
client.close()