Python parami的SSH隧道

Question

要访问远程主机，我们需要先登录jumphost1，然后登录jumphost2。为此，我们尝试创建一个隧道，如下面的python脚本所示。在

这个连接的主要目的是执行脚本脚本并将输出重定向到脚本所在的同一位置 脚本位置是本地计算机，pyc文件将从这里创建隧道并连接远程计算机。在

添加信息：两个jumphost都是sshkeygen启用的密码短语。所以它会询问密码。在

[root@centseven ~]# cat pyc
import paramiko
from sshtunnel import SSHTunnelForwarder

with SSHTunnelForwarder(
    ('1.5.18.1', 22),
    ssh_username='user',
    ssh_pkey="/root/.ssh/id_rsa",
    ssh_private_key_password="userpass",
    remote_bind_address=("1.15.18.1", 22),
    local_bind_address=('127.0.0.1', 1111)
) as tunnel:
    client = paramiko.SSHClient()
    client.load_system_host_keys()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(hostname=127.0.0.1, port=1111, username=root, password=remotepass)
    # do some operations with client session
    stdin, stdout, stderr = client.exec_command("./script >> output.txt")
    print stdout.channel.recv_exit_status()    # status is 0
    client.close()
print('FINISH!')

当前错误，建议更改，它现在要求我输入密码，当输入密码时，会显示以下错误

^{pr2}$

编辑1

python stack.py
Enter passphrase for key '/root/.ssh/id_rsa': 2017-05-15 00:14:24,437| ERROR   | Exception: Error reading SSH protocol banner
2017-05-15 00:14:24,439| ERROR   | Traceback (most recent call last):
2017-05-15 00:14:24,439| ERROR   |   File "/root/.pyenv/versions/ansible2/lib/python2.7/site-packages/paramiko/transport.py", line 1740, in run
2017-05-15 00:14:24,440| ERROR   |     self._check_banner()
2017-05-15 00:14:24,440| ERROR   |   File "/root/.pyenv/versions/ansible2/lib/python2.7/site-packages/paramiko/transport.py", line 1888, in _check_banner
2017-05-15 00:14:24,440| ERROR   |     raise SSHException('Error reading SSH protocol banner' + str(e))
2017-05-15 00:14:24,440| ERROR   | SSHException: Error reading SSH protocol banner
2017-05-15 00:14:24,440| ERROR   |

2017-05-15 00:14:24,442| ERROR   | Could not connect to gateway remotehost:22 : Error reading SSH protocol banner
Traceback (most recent call last):
  File "stack.py", line 9, in <module>
    remote_bind_address=("remotehost", 22)
  File "/root/.pyenv/versions/ansible2/lib/python2.7/site-packages/sshtunnel.py", line 1482, in __enter__
    self.start()
  File "/root/.pyenv/versions/ansible2/lib/python2.7/site-packages/sshtunnel.py", line 1224, in start
    reason='Could not establish session to SSH gateway')
  File "/root/.pyenv/versions/ansible2/lib/python2.7/site-packages/sshtunnel.py", line 1036, in _raise
    raise exception(reason)
sshtunnel.BaseSSHTunnelForwarderError: Could not establish session to SSH gateway

.ssh/config

## lo8
Host jump1-*
    User user
    IdentityFile ~/.ssh/id_rsa
    ForwardAgent yes
    ServerAliveInterval 60
    ServerAliveCountMax 12


Host jump01-temporary 
    Hostname HostIP
    Port 2222

    Host jump02
    Hostname HostIP
    Port 2222

Host jump01           
    Hostname HostIP
    Port 22
    ProxyCommand ssh -W %h:%p jump01
Host jump02           
    Hostname HostIP
    Port 22
    ProxyCommand ssh -W %h:%p jump02

Host Remote host 
    Hotname HostIP

有两个跳转服务器，我们需要连接本地机器-->JUMP1-->Jump2-->Remte主机

Answer 1

试试这个：

import paramiko
from sshtunnel import SSHTunnelForwarder

with SSHTunnelForwarder(
    ('1.5.18.1', 22),
    ssh_username='user',
    ssh_pkey="/root/.ssh/id_rsa",
    ssh_private_key_password="userpass",
    remote_bind_address=("1.15.18.1", 22)
) as tunnel:
    client = paramiko.SSHClient()
    client.load_system_host_keys()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(hostname=tunnel.local_bind_host, port=tunnel.local_bind_port, username="root", password="remotepass")
    # do some operations with client session
    stdin, stdout, stderr = client.exec_command("./script >> output.txt")
    print stdout.channel.recv_exit_status()    # status is 0
    client.close()
print('FINISH!')

Answer 2

对于Exception： 更改
client.connect(hostname=127.0.0.1, port=1111, username=root, password=nasadmin)
至
client.connect(hostname="127.0.0.1",port=1111,username="root",password="nasadmin")

它们是string，而不是variable

更新
在修复了centos6.9中的默认ssh设置之后，您的代码测试正常，那么我认为系统的ssh错误administratively prohibited有问题：当我在remote_bind_address的/etc/ssh/sshd_config中设置{}并重新启动sshd时，错误就来了

2017-05-17 16:11:09,475| ERROR   | Secsh channel 0 open FAILED: open failed: Administratively prohibited
2017-05-17 16:11:09,478| ERROR   | Could not establish connection from ('127.0.0.1', 3333) to remote side of the tunnel
2017-05-17 16:11:09,479| ERROR   | Exception: Error reading SSH protocol banner
2017-05-17 16:11:09,481| ERROR   | Traceback (most recent call last):
2017-05-17 16:11:09,481| ERROR   |   File "/usr/lib/python2.7/dist-packages/paramiko/transport.py", line 1723, in run
2017-05-17 16:11:09,481| ERROR   |     self._check_banner()
2017-05-17 16:11:09,481| ERROR   |   File "/usr/lib/python2.7/dist-packages/paramiko/transport.py", line 1871, in _check_banner
2017-05-17 16:11:09,482| ERROR   |     raise SSHException('Error reading SSH protocol banner' + str(e))
2017-05-17 16:11:09,482| ERROR   | SSHException: Error reading SSH protocol banner
2017-05-17 16:11:09,482| ERROR   | 

更多详情请参见ssh-tunneling-error-channel-1-open-failed-administratively-prohibited-open
祝你好运！在