pysftp-paramiko SSHException，来自服务器的错误主机密钥 [英] pysftp -- paramiko SSHException, Bad host key from server

问题描述

我正在尝试通过pysftp连接到远程主机:

I'm trying to connect to a remote host via pysftp:

try:
    with pysftp.Connection(inventory[0], username='transit',
                           private_key='~/.ssh/id_rsa.sftp', port=8055) as sftp:
        sftp.put('/home/me/test.file')
except Exception, err:
    print sys.exc_info()
    print err

但是，我提出了一个奇怪的例外，即我找不到太多细节.

However, I get a weird exception raised that I can't find much detail on.

(<class 'paramiko.ssh_exception.SSHException'>, SSHException('Bad host key from server',), <traceback object at 0x7fa76269c5a8>)
Bad host key from server

我发现了一个相关问题，提示我运行ssh-keygen -R [host]替换known_hosts文件中的密钥-完成此操作后，我得到了一个新错误:

I found a related question that suggested I run ssh-keygen -R [host] to replace the key in my known_hosts file -- once I did that, I got a new error:

(<class 'paramiko.ssh_exception.SSHException'>, SSHException('No hostkey for host abc.com found.',), <traceback object at 0x7f6b8520cb48>)
No hostkey for host abc.com found.

现在，如果我尝试通过ssh连接到该主机，它会再次提示我信任要放回我的known_hosts文件中的密钥，我可以接受并可以将它愉快地ssh放在盒子上.完成此步骤后，如果尝试再次运行脚本，则会收到原始错误Bad host key from server.

Now, if I try to ssh to this host, it prompts me again to trust the key to be put back into my known_hosts file, which I accept and can happily ssh onto the box. After this step, if I attempt to run my script again, I get the original error Bad host key from server.

我在这里做错什么了吗?

Am I doing something wrong here?

忍者编辑:我应该说以下内容在终端上能正常工作:

ninja edit: I should mention that the following works fine from the terminal:

sftp -i .ssh/id_rsa.sftp -oPort=8055 [e-mail]
sftp> put /home/me/test.file

Paramiko调试输出

[2016-07-14 10:32:23,809] | paramiko.transport - DEBUG - starting thread (client mode): 0x7f1dab10L
[2016-07-14 10:32:23,810] | paramiko.transport - DEBUG - Local version/idstring: SSH-2.0-paramiko_2.0.1
[2016-07-14 10:32:23,836] | paramiko.transport - DEBUG - Remote version/idstring: SSH-2.0-mod_sftp/0.9.9
[2016-07-14 10:32:23,836] | paramiko.transport - INFO - Connected (version 2.0, client mod_sftp/0.9.9)
[2016-07-14 10:32:23,837] | paramiko.transport - DEBUG - kex algos:[u'ecdh-sha2-nistp256', u'ecdh-sha2-nistp384', u'ecdh-sha2-nistp521', u'diffie-hellman-group-exchange-sha256', u'diffie-hellman-group-exchange-sha1', u'diffie-hellman-group14-sha1', u'diffie-hellman-group1-sha1', u'rsa1024-sha1'] server key:[u'ssh-rsa', u'ssh-dss'] client encrypt:[u'aes256-ctr', u'aes192-ctr', u'aes128-ctr', u'aes256-cbc', u'aes192-cbc', u'aes128-cbc', u'blowfish-ctr', u'blowfish-cbc', u'cast128-cbc', u'arcfour256', u'arcfour128', u'3des-ctr', u'3des-cbc'] server encrypt:[u'aes256-ctr', u'aes192-ctr', u'aes128-ctr', u'aes256-cbc', u'aes192-cbc', u'aes128-cbc', u'blowfish-ctr', u'blowfish-cbc', u'cast128-cbc', u'arcfour256', u'arcfour128', u'3des-ctr', u'3des-cbc'] client mac:[u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-sha1', u'hmac-sha1-96', u'hmac-md5', u'hmac-md5-96', u'hmac-ripemd160', u'[e-mail]'] server mac:[u'hmac-sha2-256', u'hmac-sha2-512', u'hmac-sha1', u'hmac-sha1-96', u'hmac-md5', u'hmac-md5-96', u'hmac-ripemd160', u'[e-mail]'] client compress:[u'none'] server compress:[u'none'] client lang:[u''] server lang:[u''] kex follows?False
[2016-07-14 10:32:23,837] | paramiko.transport - DEBUG - Kex agreed: diffie-hellman-group1-sha1
[2016-07-14 10:32:23,838] | paramiko.transport - DEBUG - Cipher agreed: aes128-ctr
[2016-07-14 10:32:23,838] | paramiko.transport - DEBUG - MAC agreed: hmac-sha2-256
[2016-07-14 10:32:23,838] | paramiko.transport - DEBUG - Compression agreed: none
[2016-07-14 10:32:23,935] | paramiko.transport - DEBUG - kex engine KexGroup1 specified hash_algo <built-in function openssl_sha1>
[2016-07-14 10:32:23,936] | paramiko.transport - DEBUG - Switch to new keys ...
[2016-07-14 10:32:23,952] | paramiko.transport - DEBUG - Bad host key from server
[2016-07-14 10:32:23,952] | paramiko.transport - DEBUG - Expected: ssh-rsa: '\x00\x00\x00\x07ssh-rsa\x00\x00\x00\x01#\x00\x00\x01\x01\x00\xb9\x05\xddUF?o\xeet\xad\x06=\x83\xd6\xa8\xb1\x06\x03\xb7\xb5\xa5C\x80\x0c~\xa8\x83[w!\x16y\xe6@\xdajX\x90+c\xd4\x18X\xd7\xff\x05\x06\xe2\x19\x96\x8c&J\x0c\x1f\xd2\xefC\xa5\xc6\xbb\x1f\xc9N\xd7r\x12\xd29\x1f\xe1\xb6F\xe8\xdc(w~\x1f\xea\xea\xfdUT?^V\xe8=\'\xd60\xdc\xc44gYnn\xfe\xe8^?\x8b\xa8"\xda\xc7(\x18\xc3<\xa9\x1c\xa1)A3_\x00<$y\xbe\xd4$\xc2S\xe6\x93\xe3B^\xef\xe6\xbf\xb5\x88\xd6\x98EeP\x9aZm\xa7\xc5&\xffn\xc1lb\x1e[\x8d!*\xfa\xa3\xce\xb6\xe7\xd5U\r<E\xd2\xe1\x89.\xed%o\xefju\xde>=*b\xaeBO\xbf>\xe4/,\xd5@R\xc5\x9e\xac\xf5\x80\x04\xa9s)3\xb5\xbc\xc2\xcc\xe7\xa7\xb8\x04>uA\xb4O\xa6\xf3\xdb\x9c2\xb5"%n\x89\t\x8192\xe7#n\x82p\xee\xdf\x16]\xb3A\x93\xebm|\xb9\xd7\nXsmw\x81\xa9'
[2016-07-14 10:32:23,953] | paramiko.transport - DEBUG - Got     : ssh-rsa: "\x00\x00\x00\x07ssh-rsa\x00\x00\x00\x01#\x00\x00\x01\x01\x00\xc6_\xea\xc1yF\xd5\xdd\x146\x8c\x0eU\xeah[3\x16VP\xde2\xbe~\xed\x92\xef\xb81\x14\xd8\xb7\xa7\x08\xa3\x02\xa8\n\x9f\x7f{\x896\x1b\x89/,\x92\x86\xc7M\xa5\x7f0Cj\xe6\x93\xb0\x0eup%\xa2p\x9d3i\xaco\xf7\x14\xfb\xfe\x8f}a\xcbJ :\xdf\xdd1\x10\xe8;\xd3%\x98k')\xf8\x1c\xc1D\x97\\\xcc\xe6\xf5*6\xc2\xf1\xb8\xcf!\xeed\x1co\xc1\x03\xb4v\xc0,?\xda\xc7\xa3\xd9\xe8\xafy\xf5k\xf7\xe8\xa1\x9cr\xfa\x81\xcd\xee\xd3\xeao\xa7\x072\xce\x8b\xf9\x95\x03\xa1\xe2\xaf\t\xa2\xba\xa1O\xbc\xbf}}\x9e\xc0t\x9bC\x88\xbd\x18'\x00?-\xa0\x05\x83I\x1ah#I\xfc\xebc$\xfc\xa0\xad\xeeP\x80\x88Bh_\xeb`\xb6\xab\x8bC\x83\x987\xba\x05\xb14\xea\x90\xac>\x99&\x99\xb3\xf9\nC\xdf\xfd\xba<\xf8\xaf\xca\xaf\xfa\x15+\x1e,L\xa1\xf0\x1e\xa5`\xbd>\xf4\xa63)\xae7F\xd2\xc9\xf2\xf3A\xa4\x10u\xa9"
(<class 'paramiko.ssh_exception.SSHException'>, SSHException('Bad host key from server',), <traceback object at 0x7fb87f143ef0>)
Bad host key from server
[2016-07-14 10:32:24,037] | paramiko.transport - DEBUG - EOF in transport thread

推荐答案

解决方法

这似乎是pysftp包装器的某种错误……我不确定.恢复到本机paramiko使我连接起来很好，所以我现在就开始讨论.当前的工作代码:

Workaround

This seems to be some sort of bug with the pysftp wrapper... I'm not sure. Reverting to native paramiko got me connected just fine, so I'm going with that for now. Current working code:

rsa_key = paramiko.RSAKey.from_private_key_file('~/.ssh/the_key', password='myPassword')
transport = paramiko.Transport((inventory[0],8055))
transport.connect(username='theUser', pkey=rsa_key)
sftp = paramiko.SFTPClient.from_transport(transport)
print sftp.listdir()

这篇关于pysftp-paramiko SSHException，来自服务器的错误主机密钥的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！