[英]Python Paramiko/SSH error
我是Python的新手,正在學習SSH的用法。 有人可以幫助我確定錯誤的原因。 基本上是嘗試從Unix框中通過ssh連接到設備並執行簡單的“ show version”命令並返回/打印其輸出
Traceback (most recent call last):
File "ssh.py", line 33, in <module>
ver = node.cmd('show version')
File "/home/xxxx/python/classes/ssh.py", line 17, in cmd
stdin, stdout, stderr = self.node.exec_command(command)
File "/usr/local/lib/python2.6/dist-packages/paramiko/client.py", line 345, in exec_command
chan.exec_command(command)
File "/usr/local/lib/python2.6/dist-packages/paramiko/channel.py", line 60, in _check
return func(self, *args, **kwds)
File "/usr/local/lib/python2.6/dist-packages/paramiko/channel.py", line 229, in exec_command
self._wait_for_event()
File "/usr/local/lib/python2.6/dist-packages/paramiko/channel.py", line 1086, in _wait_for_event
raise e
EOFError
調試
DEB [20161107-17:37:31.455] thr=1 paramiko.transport: starting thread (client mode): 0x23f2310L
INF [20161107-17:37:31.460] thr=1 paramiko.transport: Connected (version 2.0, client OpenSSH_3.5p1)
DEB [20161107-17:37:31.463] thr=1 paramiko.transport: blah blah
DEB [20161107-17:37:31.463] thr=1 paramiko.transport: Ciphers agreed: local=aes128-cbc, remote=aes128-cbc
DEB [20161107-17:37:31.463] thr=1 paramiko.transport: blah blah
DEB [20161107-17:37:31.466] thr=1 paramiko.transport: Got server p (1024 bits)
DEB [20161107-17:37:31.610] thr=1 paramiko.transport: Switch to new keys ...
DEB [20161107-17:37:31.627] thr=2 paramiko.transport: Adding ssh-rsa host key for as102.lnstb: xxxxxxxxxxx
DEB [20161107-17:37:31.633] thr=1 paramiko.transport: userauth is OK
INF [20161107-17:37:31.669] thr=1 paramiko.transport: Authentication (password) successful!
DEB [20161107-17:37:31.693] thr=2 paramiko.transport: [chan 0] Max packet in: 32768 bytes
DEB [20161107-17:37:31.696] thr=1 paramiko.transport: [chan 0] Max packet out: 32768 bytes
DEB [20161107-17:37:31.696] thr=1 paramiko.transport: Secsh channel 0 opened.
DEB [20161107-17:37:31.704] thr=1 paramiko.transport: EOF in transport thread
編碼
class Ssh:
def connect(self, host, user, password):
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, username = user, password = password)
self.node = ssh
def cmd(self,command):
stdin, stdout, stderr = self.node.exec_command(command)
return stdout.read()
node = Ssh()
node.connect(host,user,pwd)
ver = node.cmd('show version')
print(ver)
所以我在另一個由單獨供應商提供的設備上嘗試了此方法,並且可以正常工作。似乎該特定供應商需要在paramiko配置中進行一些調整。
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