Question

我有3台Ubuntu机器，机器2有两个以太网端口，即它有两个不同子网的两个IP。机器1可以ping到机器2，机器2可以ping到机器3以及机器1.但是机器1不能ping到机器3，反之亦然。以下是机器的IP：

Machine 1 IP：192.168.0.10
Machine 2 eth0 IP：192.168.0.20
Machine 2 eth1 IP：192.168.167.10
Machine 3 IP：192.168.167.20

我可以使用机器2的用户名和密码从机器1到机器2。我可以使用机器3的用户名和机器3提供的密钥从机器2到机器3进行ssh。

现在我想在机器1上运行一个python脚本，我想使用这个python脚本在机器3上运行一个命令（比如uname -a）。

我使用下面的代码执行此操作：

import paramiko
from sshtunnel import SSHTunnelForwarder
import logging

logging.basicConfig(level=logging.DEBUG)

key = paramiko.RSAKey.from_private_key_file("machineKey.key", password='Password')

with SSHTunnelForwarder(
("192.168.0.20", 22),             #Machine 2 IP
ssh_username="user",              #Machine 2's user name
ssh_password="password",          #Machine 2's password
ssh_pkey=key,                     #Machine 3's key (required for authentication)
remote_bind_address=("192.168.167.20", 22),        #Machine 3's IP
) as tunnel:

client = paramiko.SSHClient()
client.load_system_host_keys()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect('0.0.0.0', 22)
print (client.exec_command("uname -a"))
client.close()
print('FINISH!')

当我跑步时，我收到了以下错误：

DEBUG:paramiko.transport:starting thread (client mode): 0xb6de7b8cL
INFO:paramiko.transport:Connected (version 2.0, client OpenSSH_6.6.1p1)
DEBUG:paramiko.transport:Ciphers agreed: local=aes128-ctr, remote=aes128-    ctr
DEBUG:paramiko.transport:using kex diffie-hellman-group1-sha1; server key     type ssh-rsa; cipher: local aes128-ctr, remote aes128-ctr; mac: local     hmac-sha1, remote hmac-sha1; compression: local none, remote none
DEBUG:paramiko.transport:Switch to new keys ...
DEBUG:paramiko.transport:Attempting public-key auth...
DEBUG:paramiko.transport:userauth is OK
INFO:paramiko.transport:Authentication (publickey) failed.
DEBUG:paramiko.transport:EOF in transport thread
DEBUG:paramiko.transport:starting thread (client mode): 0xb6de7b2cL
INFO:paramiko.transport:Connected (version 2.0, client OpenSSH_6.6.1p1)
DEBUG:paramiko.transport:Ciphers agreed: local=aes128-ctr, remote=aes128-ctr
DEBUG:paramiko.transport:using kex diffie-hellman-group1-sha1; server key type ssh-rsa; cipher: local aes128-ctr, remote aes128-ctr; mac: local     hmac-sha1, remote hmac-sha1; compression: local none, remote none
DEBUG:paramiko.transport:Switch to new keys ...
DEBUG:paramiko.transport:Attempting password auth...
DEBUG:paramiko.transport:userauth is OK
INFO:paramiko.transport:Authentication (password) successful!
DEBUG:paramiko.transport:EOF in transport thread
Traceback (most recent call last):
  File "tunnelTest.py", line 37, in <module>
    client.connect("127.0.0.1", 2947, username = "root", pkey = key)
  File "/usr/lib/python2.7/dist-packages/paramiko/client.py", line 300, in connect
    retry_on_signal(lambda: sock.connect(addr))
  File "/usr/lib/python2.7/dist-packages/paramiko/util.py", line 278, in retry_on_signal
    return function()
  File "/usr/lib/python2.7/dist-packages/paramiko/client.py", line 300, in <lambda>
    retry_on_signal(lambda: sock.connect(addr))
  File "/usr/lib/python2.7/socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
socket.error: [Errno 111] Connection refused

任何人都可以建议我改变我必须做的事情让它运行吗？感谢

Python中的SSH隧道

0 个答案: