我的脚本适用于一台电脑，但不适用于另一台电脑
[英]my Script works on one pc, but not on another pc
问题描述
I am using paramiko to connect to my PDU for AC off on control.
我正在使用 paramiko 连接到我的 PDU 以控制 AC 关闭。
I do not face the issue on my laptop and my host system.我的笔记本电脑和主机系统没有遇到这个问题。 The code works well on both.该代码在两者上都运行良好。
But when I copy my code to use on new host system, below error start appearing, I tried to test on other laptop also having the issue:-但是，当我复制代码以在新主机系统上使用时，开始出现以下错误，我尝试在其他笔记本电脑上进行测试，也有问题：-
I uses the same connection for the UUT, it connects with no issue, then later connect to PDU to AC OFF and On.我对 UUT 使用相同的连接，它连接没有问题，然后连接到 PDU 以关闭和打开 AC。 The error will happen.会发生错误。 Is this something to do with the new systems?这与新系统有关吗？
Code:代码：
#Connect to PDU to AC OFF & ON. ***PDU Outlet # to be hard coded here for now***
ssh.connect(PDUipaddr, port=PDUport, username=PDUusrname, password=PDUusrpass)
print('PDU Connection Successful')
Error from IDLE:来自 IDLE 的错误：
Exception (client): Invalid key (class: RSAKey, data type: rsa-sha2-256
Traceback (most recent call last):
File "C:\Python\lib\site-packages\paramiko\transport.py", line 2129, in run
self.kex_engine.parse_next(ptype, m)
File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 75, in parse_next
return self._parse_kexdh_reply(m)
File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 120, in _parse_kexdh_reply
self.transport._verify_key(host_key, sig)
File "C:\Python\lib\site-packages\paramiko\transport.py", line 1937, in _verify_key
key = self._key_info[self.host_key_type](Message(host_key))
File "C:\Python\lib\site-packages\paramiko\rsakey.py", line 71, in __init__
self._check_type_and_load_cert(
File "C:\Python\lib\site-packages\paramiko\pkey.py", line 622, in _check_type_and_load_cert
raise SSHException(err.format(self.__class__.__name__, type_))
paramiko.ssh_exception.SSHException: Invalid key (class: RSAKey, data type: rsa-sha2-256
Traceback (most recent call last):
File "C:\Users\EV_PG\Desktop\AMDXIO Script\Test.py", line 26, in <module>
ssh.connect(PDUipaddr, port=PDUport, username=PDUusrname, password=PDUusrpass)
File "C:\Python\lib\site-packages\paramiko\client.py", line 406, in connect
t.start_client(timeout=timeout)
File "C:\Python\lib\site-packages\paramiko\transport.py", line 698, in start_client
raise e
File "C:\Python\lib\site-packages\paramiko\transport.py", line 2129, in run
self.kex_engine.parse_next(ptype, m)
File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 75, in parse_next
return self._parse_kexdh_reply(m)
File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 120, in _parse_kexdh_reply
self.transport._verify_key(host_key, sig)
File "C:\Python\lib\site-packages\paramiko\transport.py", line 1937, in _verify_key
key = self._key_info[self.host_key_type](Message(host_key))
File "C:\Python\lib\site-packages\paramiko\rsakey.py", line 71, in __init__
self._check_type_and_load_cert(
File "C:\Python\lib\site-packages\paramiko\pkey.py", line 622, in _check_type_and_load_cert
raise SSHException(err.format(self.__class__.__name__, type_))
paramiko.ssh_exception.SSHException: Invalid key (class: RSAKey, data type: rsa-sha2-256
Paramiko Logging Failed System:- Paramiko 记录失败的系统：-
DEBUG:paramiko.transport:starting thread (client mode): 0xf6286260
DEBUG:paramiko.transport:Local version/idstring: SSH-2.0-paramiko_2.9.1
DEBUG:paramiko.transport:Remote version/idstring: SSH-2.0-Mocana SSH
INFO:paramiko.transport:Connected (version 2.0, client Mocana)
DEBUG:paramiko.transport:=== Key exchange possibilities ===
DEBUG:paramiko.transport:kex algos: diffie-hellman-group14-sha1, diffie-hellman-group1-sha1
DEBUG:paramiko.transport:server key: rsa-sha2-256, ssh-rsa
DEBUG:paramiko.transport:client encrypt: aes128-ctr, aes128-cbc, rijndael128-cbc, aes256-ctr, aes256-cbc, rijndael256-cbc, aes192-ctr, aes192-cbc, rijndael192-cbc, 3des-cbc
DEBUG:paramiko.transport:server encrypt: aes128-ctr, aes128-cbc, rijndael128-cbc, aes256-ctr, aes256-cbc, rijndael256-cbc, aes192-ctr, aes192-cbc, rijndael192-cbc, 3des-cbc
DEBUG:paramiko.transport:client mac: hmac-sha2-256, hmac-sha1, hmac-sha1-96, hmac-md5, hmac-md5-96
DEBUG:paramiko.transport:server mac: hmac-sha2-256, hmac-sha1, hmac-sha1-96, hmac-md5, hmac-md5-96
DEBUG:paramiko.transport:client compress: none
DEBUG:paramiko.transport:server compress: none
DEBUG:paramiko.transport:client lang: <none>
DEBUG:paramiko.transport:server lang: <none>
DEBUG:paramiko.transport:kex follows: False
DEBUG:paramiko.transport:=== Key exchange agreements ===
DEBUG:paramiko.transport:Kex: diffie-hellman-group14-sha1
DEBUG:paramiko.transport:HostKey: rsa-sha2-256
DEBUG:paramiko.transport:Cipher: aes128-ctr
DEBUG:paramiko.transport:MAC: hmac-sha2-256
DEBUG:paramiko.transport:Compression: none
DEBUG:paramiko.transport:=== End of kex handshake ===
ERROR:paramiko.transport:Exception (client): Invalid key (class: RSAKey, data type: rsa-sha2-256
ERROR:paramiko.transport:Traceback (most recent call last):
ERROR:paramiko.transport: File "C:\Python\lib\site-packages\paramiko\transport.py", line 2129, in run
ERROR:paramiko.transport: self.kex_engine.parse_next(ptype, m)
ERROR:paramiko.transport: File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 75, in parse_next
ERROR:paramiko.transport: return self._parse_kexdh_reply(m)
ERROR:paramiko.transport: File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 120, in _parse_kexdh_reply
ERROR:paramiko.transport: self.transport._verify_key(host_key, sig)
ERROR:paramiko.transport: File "C:\Python\lib\site-packages\paramiko\transport.py", line 1937, in _verify_key
ERROR:paramiko.transport: key = self._key_info[self.host_key_type](Message(host_key))
ERROR:paramiko.transport: File "C:\Python\lib\site-packages\paramiko\rsakey.py", line 71, in __init__
ERROR:paramiko.transport: self._check_type_and_load_cert(
ERROR:paramiko.transport: File "C:\Python\lib\site-packages\paramiko\pkey.py", line 622, in _check_type_and_load_cert
ERROR:paramiko.transport: raise SSHException(err.format(self.__class__.__name__, type_))
ERROR:paramiko.transport:paramiko.ssh_exception.SSHException: Invalid key (class: RSAKey, data type: rsa-sha2-256
ERROR:paramiko.transport:
Traceback (most recent call last):
File "C:\Users\EV_PG\Desktop\AMDXIO Script\Test.py", line 28, in <module>
ssh.connect(PDUipaddr, port=PDUport, username=PDUusrname, password=PDUusrpass)
File "C:\Python\lib\site-packages\paramiko\client.py", line 406, in connect
t.start_client(timeout=timeout)
File "C:\Python\lib\site-packages\paramiko\transport.py", line 698, in start_client
raise e
File "C:\Python\lib\site-packages\paramiko\transport.py", line 2129, in run
self.kex_engine.parse_next(ptype, m)
File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 75, in parse_next
return self._parse_kexdh_reply(m)
File "C:\Python\lib\site-packages\paramiko\kex_group1.py", line 120, in _parse_kexdh_reply
self.transport._verify_key(host_key, sig)
File "C:\Python\lib\site-packages\paramiko\transport.py", line 1937, in _verify_key
key = self._key_info[self.host_key_type](Message(host_key))
File "C:\Python\lib\site-packages\paramiko\rsakey.py", line 71, in __init__
self._check_type_and_load_cert(
File "C:\Python\lib\site-packages\paramiko\pkey.py", line 622, in _check_type_and_load_cert
raise SSHException(err.format(self.__class__.__name__, type_))
paramiko.ssh_exception.SSHException: Invalid key (class: RSAKey, data type: rsa-sha2-256
Paramiko Logging Passing System:- Paramiko 测井传递系统：-
DEBUG:paramiko.transport:starting thread (client mode): 0x300e2020
DEBUG:paramiko.transport:Local version/idstring: SSH-2.0-paramiko_2.8.1
DEBUG:paramiko.transport:Remote version/idstring: SSH-2.0-Mocana SSH
INFO:paramiko.transport:Connected (version 2.0, client Mocana)
DEBUG:paramiko.transport:kex algos:['diffie-hellman-group14-sha1', 'diffie-hellman-group1-sha1'] server key:['rsa-sha2-256', 'ssh-rsa'] client encrypt:['aes128-ctr', 'aes128-cbc', 'rijndael128-cbc', 'aes256-ctr', 'aes256-cbc', 'rijndael256-cbc', 'aes192-ctr', 'aes192-cbc', 'rijndael192-cbc', '3des-cbc'] server encrypt:['aes128-ctr', 'aes128-cbc', 'rijndael128-cbc', 'aes256-ctr', 'aes256-cbc', 'rijndael256-cbc', 'aes192-ctr', 'aes192-cbc', 'rijndael192-cbc', '3des-cbc'] client mac:['hmac-sha2-256', 'hmac-sha1', 'hmac-sha1-96', 'hmac-md5', 'hmac-md5-96'] server mac:['hmac-sha2-256', 'hmac-sha1', 'hmac-sha1-96', 'hmac-md5', 'hmac-md5-96'] client compress:['none'] server compress:['none'] client lang:[''] server lang:[''] kex follows?False
DEBUG:paramiko.transport:Kex agreed: diffie-hellman-group14-sha1
DEBUG:paramiko.transport:HostKey agreed: ssh-rsa
DEBUG:paramiko.transport:Cipher agreed: aes128-ctr
DEBUG:paramiko.transport:MAC agreed: hmac-sha2-256
DEBUG:paramiko.transport:Compression agreed: none
DEBUG:paramiko.transport:kex engine KexGroup14 specified hash_algo <built-in function openssl_sha1>
DEBUG:paramiko.transport:Switch to new keys ...
DEBUG:paramiko.transport:Adding ssh-rsa host key for [10.47.7.42]:22: b'5289cb302fda3e4cfb5c6382c85916f9'
DEBUG:paramiko.transport:userauth is OK
INFO:paramiko.transport:Auth banner: b'+============================================================================+\r\n| EATON ePDU Configuration Utility |\r\n+============================================================================+\r\n'
INFO:paramiko.transport:Authentication (password) successful!
PDU Connection Successful
B2B & R2R Completed... Check Logfiles.
DEBUG:paramiko.transport:EOF in transport thread
1 个解决方案
解决方案1
1 2022-01-07 06:57:22
You are using different versions of Paramiko on the two machines.您在两台机器上使用不同版本的 Paramiko。 The failing machine uses newer 2.9.1.故障机器使用较新的 2.9.1。 Paramiko 2.9 added support for rsa-sha2-256 keys . Paramiko 2.9 添加了对rsa-sha2-256 keys 的支持。 Your server supports these too, so Paramiko and the server agree on using them.您的服务器也支持这些，因此 Paramiko 和服务器同意使用它们。 While the machine with older Paramiko 2.8.1 uses ssh-rsa keys.而具有较旧 Paramiko 2.8.1 的机器使用ssh-rsa密钥。
But something seems to go wrong with rsa-sha2-256 keys.但是 go 似乎与rsa-sha2-256键有问题。 I cannot tell whom to blame.我说不出该怪谁。 It can be a bug in new rsa-sha2-256 implementation in Paramiko.它可能是 Paramiko 中新rsa-sha2-256实现中的一个错误。 But it can also be a bug in the server, as you are using some minor (Mocana SSH) server, which might not be well tested.但这也可能是服务器中的错误，因为您使用的是一些小型（Mocana SSH）服务器，可能没有经过很好的测试。
In any case, you should be able to bypass the problem by avoiding use of the rsa-sha2-256 keys:无论如何，您应该能够通过避免使用rsa-sha2-256密钥来绕过该问题：
ssh.connect(PDUipaddr, port=PDUport, username=PDUusrname, password=PDUusrpass,
disabled_algorithms=dict(pubkeys=["rsa-sha2-256"]))
Note that such code won't run on the machine with Paramiko 2.8.1, as the disabled_algorithms was added only in 2.9.请注意，此类代码不会在使用 Paramiko 2.8.1 的机器上运行，因为disabled_algorithms仅在 2.9 中添加。
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