import paramiko

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('140.44.4.71', username='root', key_filename=r'C:\Users\Snarf\.ssh\id_ed25519_snarfnet', timeout=10)

def run(cmd):
    print(f">>> {cmd}")
    _, o, e = ssh.exec_command(cmd)
    out = o.read().decode().strip()
    err = e.read().decode().strip()
    if out:
        print(out)
    if err:
        print("[stderr]", err)

run("iptables -t nat -I PREROUTING 1 -p tcp --dport 10051 -j DNAT --to-destination 140.44.4.64:10051")
run("iptables -t nat -I POSTROUTING 1 -p tcp -d 140.44.4.64 --dport 10051 -j MASQUERADE")
run("iptables -t nat -L PREROUTING -n -v | head -n 5")

ssh.close()