paramiko - 使用私钥连接 - 不是有效的OPENSSH私钥/公钥文件

Question

我试图找到解决方案,无法理解我做错了什么.

在我的Linux服务器上,我运行了以下命令:

ssh-keygen -t rsa

这生成了一个id_rsa和id_rsa.pub文件.

然后我在本地复制它们并尝试运行以下代码:

    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh.connect('myserver', username='myuser', key_filename='id_rsa')
    sftp = ssh.open_sftp()
    sftp.chdir('/path/to/file')
    sftp.get(file, os.path.join(tmp_dir, '{0}.existing-{1}'.format('myfile', current_datetime)))
except Exception, err:
    logging.debug(err)
    logging.info('Error connecting to Host')

我在日志中收到以下错误:

2017-08-22 22:41:54,486 Switch to new keys ...
2017-08-22 22:41:54,502 Adding ssh-ed25519 host key for myserver.domain.com: 51ac2fe875499371256dd8c5a132f394
2017-08-22 22:41:54,502 Trying key 7688e32d30edb2c94bfe39be9897004f from id_rsa
2017-08-22 22:41:54,532 userauth is OK
2017-08-22 22:41:54,549 Authentication (publickey) failed.
2017-08-22 22:41:54,563 not a valid OPENSSH private key file
2017-08-22 22:41:54,563 Error connecting to Host
2017-08-22 22:41:54,657 EOF in transport thread

我错过了什么吗？它是一个有效的OPENSSH私钥文件.

编辑 - 如果我使用id_rsa.pub我得到以下内容:

2017-08-22 22:58:09,631 Kex agreed: ecdh-sha2-nistp256
2017-08-22 22:58:09,631 HostKey agreed: ssh-ed25519
2017-08-22 22:58:09,631 Cipher agreed: aes128-ctr
2017-08-22 22:58:09,631 MAC agreed: hmac-sha2-256
2017-08-22 22:58:09,631 Compression agreed: none
2017-08-22 22:58:09,694 kex engine KexNistp256 specified hash_algo <built-in function openssl_sha256>
2017-08-22 22:58:09,710 Switch to new keys ...
2017-08-22 22:58:09,726 Adding ssh-ed25519 host key for myserver.domain.com: 51ac2fe875499371256dd8c5a132f394
2017-08-22 22:58:09,726 not a valid OPENSSH private key file
2017-08-22 22:58:09,726 Error connecting to Host
2017-08-22 22:58:09,819 EOF in transport thread

问心无愧？

Answer 1

您可以使用ssh-keygen将id_rsa转换为RSA类型的私钥。我遇到了类似的情况，它为我工作。

要将“ BEGIN OPENSSH私钥”转换为“ BEGIN RSA私钥”

ssh-keygen -p -m PEM -f ~/.ssh/id_rsa

Answer 2

我有一个运行的paramiko rsa密钥验证设置,这里是我所做的总结:

• 运行ssh-keygen -t rsa生成id_rsa和id_rsa.pub文件

• 将id_rsa.pub的内容复制到〜/ .ssh/authorized_keys(在目标系统上)

• 将id_rsa(私有)密钥文件复制到客户端计算机上

• (在目标上,我在.ssh /上的模式755和authorized_keys上的644)

以下代码使用paramiko运行登录:

import logging
import paramiko

logger = paramiko.util.logging.getLogger()
hdlr = logging.FileHandler('app.log')
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
hdlr.setFormatter(formatter)
logger.addHandler(hdlr) 
logger.setLevel(logging.INFO)

try:
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    k = paramiko.RSAKey.from_private_key_file('id_rsa')
    ssh.connect('160.100.28.216', username='edwards', pkey = k)
    sftp = ssh.open_sftp()
    sftp.chdir('/home/edwards')
except Exception, err:
    logging.debug(err)
    logging.info('Error connecting to Host')

app.log文件中显示以下内容:

    2017-08-23 16:52:33,154 INFO Connected (version 2.0, client OpenSSH_6.6.1)
    2017-08-23 16:52:46,926 INFO Authentication (publickey) successful!
    2017-08-23 16:52:47,203 INFO [chan 0] Opened sftp connection (server version 3)

(注意,paramiko客户端正在使用私钥文件.)这些都在Python 2.7上.我希望这部分或全部可能有用.