问题描述
我无权直接访问该设备，因此我首先创建了一个通往中间设备的SSH隧道；然后登录到远端远程设备；然后执行。这在CLI上效果很好。
ssh user@127.0.0.1 -p 2222 -oKexAlgorithms=+diffie-hellman-group1-sha1 -c aes128-cbc
user@127.0.0.1's password:
使用Paramiko时，我可以正确登录，但是无法发送命令。我已启用loggin来查看发生了什么，但找不到任何线索。
import paramiko
conn2rtr = paramiko.SSHClient()
conn2rtr.load_system_host_keys()
conn2rtr.set_missing_host_key_policy(paramiko.AutoAddPolicy())
conn2rtr.connect(hostname='127.0.0.1',port=2222,username='user',password='pass')
DEBUG:paramiko.transport:Adding ssh-rsa host key for [127.0.0.1]:2222: b'feaaa6e6e79b979e3a99c213e92a0b34'
DEBUG:paramiko.transport:userauth is OK
INFO:paramiko.transport:Authentication (password) successful!
但是当我要发送命令（即exec_command）时，会收到异常EOFError。
stdin,stdout,stderr = conn2rtr.exec_command("show version\n")
DEBUG:paramiko.transport:[chan 0] Max packet in: 32768 bytes
DEBUG:paramiko.transport:[chan 0] Max packet out: 32768 bytes
DEBUG:paramiko.transport:Secsh channel 0 opened.
DEBUG:paramiko.transport:EOF in transport thread
---------------------------------------------------------------------------
EOFError Traceback (most recent call last)
<ipython-input-20-01669f7eafd5> in <module>
----> 1 stdin,stderr = conn2rtr.exec_command("show version\n")
/usr/local/lib/python3.8/dist-packages/paramiko/client.py in exec_command(self,command,bufsize,timeout,get_pty,environment)
512 if environment:
513 chan.update_environment(environment)
--> 514 chan.exec_command(command)
515 stdin = chan.makefile_stdin("wb",bufsize)
516 stdout = chan.makefile("r",bufsize)
/usr/local/lib/python3.8/dist-packages/paramiko/channel.py in _check(self,*args,**kwds)
70 ):
71 raise SSHException("Channel is not open")
---> 72 return func(self,**kwds)
73
74 return _check
/usr/local/lib/python3.8/dist-packages/paramiko/channel.py in exec_command(self,command)
255 self._event_pending()
256 self.transport._send_user_message(m)
--> 257 self._wait_for_event()
258
259 @open_only
/usr/local/lib/python3.8/dist-packages/paramiko/channel.py in _wait_for_event(self)
1224 if e is None:
1225 e = SSHException("Channel closed.")
-> 1226 raise e
1227
1228 def _set_closed(self):
/usr/local/lib/python3.8/dist-packages/paramiko/transport.py in run(self)
2053 self._send_kex_init()
2054 try:
-> 2055 ptype,m = self.packetizer.read_message()
2056 except NeedRekeyException:
2057 continue
/usr/local/lib/python3.8/dist-packages/paramiko/packet.py in read_message(self)
457 :raises: `.NeedRekeyException` -- if the transport should rekey
458 """
--> 459 header = self.read_all(self.__block_size_in,check_rekey=True)
460 if self.__etm_in:
461 packet_size = struct.unpack(">I",header[:4])[0]
/usr/local/lib/python3.8/dist-packages/paramiko/packet.py in read_all(self,n,check_rekey)
301 x = self.__socket.recv(n)
302 if len(x) == 0:
--> 303 raise EOFError()
304 out += x
305 n -= len(x)
EOFError:
如果我在bufsize内定义exec_command()，也会发生同样的情况。
有任何提示吗？谢谢！
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。
小编邮箱:dio#foxmail.com (将#修改为@）