Netmiko登录故障处理
Netmiko登录故障处理
提问于 2020-01-22 20:46:16
我在找人帮忙。我正在尝试编写一个脚本，通过SSH连接到一个设备，如果身份验证失败，打印出一条"Login Failed“语句。不幸的是，错误处理似乎不起作用，并抛出一个错误，请参阅下面的跟踪。
任何建议都将不胜感激。我是python的新手。
非常感谢Ric
from netmiko import Netmiko
from getpass import getpass
from netmiko import ssh_exception
from paramiko.ssh_exception import AuthenticationException
from netmiko.ssh_exception import NetmikoAuthenticationException
import sys
Netmiko(
"1.1.1.1",
username="fred",
password=getpass(),
device_type="cisco_ios",
)
try:
net_connect = ConnectHandler(**Netmiko)
except (AuthenticationException, NetmikoAuthenticationException):
print("Login failed")
sys.exit()
print(net_connect.find_prompt())
net_connect.disconnect()```
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/netmiko/base_connection.py", line 892, in establish_connection
self.remote_conn_pre.connect(**ssh_connect_params)
File "/usr/local/lib/python3.6/site-packages/paramiko/client.py", line 446, in connect
passphrase,
File "/usr/local/lib/python3.6/site-packages/paramiko/client.py", line 764, in _auth
raise saved_exception
File "/usr/local/lib/python3.6/site-packages/paramiko/client.py", line 751, in _auth
self._transport.auth_password(username, password)
File "/usr/local/lib/python3.6/site-packages/paramiko/transport.py", line 1509, in auth_password
return self.auth_handler.wait_for_response(my_event)
File "/usr/local/lib/python3.6/site-packages/paramiko/auth_handler.py", line 250, in wait_for_response
raise e
paramiko.ssh_exception.AuthenticationException: Authentication failed.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "LoginCheck.py", line 13, in <module>
device_type="cisco_ios",
File "/usr/local/lib/python3.6/site-packages/netmiko/ssh_dispatcher.py", line 252, in ConnectHandler
return ConnectionClass(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/netmiko/base_connection.py", line 318, in __init__
self._open()
File "/usr/local/lib/python3.6/site-packages/netmiko/base_connection.py", line 323, in _open
self.establish_connection()
File "/usr/local/lib/python3.6/site-packages/netmiko/base_connection.py", line 905, in establish_connection
raise NetmikoAuthenticationException(msg)
netmiko.ssh_exception.NetmikoAuthenticationException: Authentication failure: unable to connect cisco_ios 1.1.1.1:22回答 2
Stack Overflow用户
发布于 2020-03-04 21:41:53
无需在except中打印“登录失败”，您只需收集所有异常，如下所示：
except Exception as e:
print(e)通过这种方式，您可以收集每个异常。
Stack Overflow用户
发布于 2021-01-29 20:49:14
在定义Netmiko参数时，除了只提供‘值’的IP地址之外，您可以为所有内容提供key:value对。您总是需要为任何值提供“key”。此外，在定义Netmiko参数时，请将它们放在大括号中，而不是用括号括起来。您应该检查您的导入语句，它们可以被清除。实际上，在编写脚本时，您应该多关注一些细节，因为这在编写脚本时非常重要。
Netmiko{
ip: "1.1.1.1",
username: "fred",
password: getpass(),
device_type: "cisco_ios"
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/59860083
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