第二个.与paramiko (ssh)连接

Question

形成主要的 Linux 操作系统（已连接，工作）我想运行另一个“.connect”。

这是代码：

import paramiko
hostname =  "hostaname"
ip =        "1111.111.11.11"
username =  "user"
password =  "pass"
    
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(hostname=hostname,username=username, password=password)

现在我想从主目录访问另一个本地主机：

hostname =  "localhost"
ip =        "222.222.2.2"
username =  "root"
password =  "root"
ssh.connect(hostname=hostname,username=username, password=password)

我收到以下错误：

NoValidConnectionsError: [Errno None] Unable to connect to port 22 on 222.222.2.2 or ::1

UPD：我在以下问题中找到了答案： 使用 Python Paramiko 的嵌套 SSH

Answer 1

UPD：我在以下问题中找到了答案：Nested SSH using Python Paramiko

这是我的完整代码和解决方案：

import paramiko
ip1_hostname =  "host-name-2024"

ip1 =      "1111.111.11.11"
ip2 =      "222.222.2.2"

ip1_username =  "username"
ip1_password =  "password"

root_user =     "root"
root_password = "root"

ip1_machine = paramiko.SSHClient()
ip1_machine.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ip1_machine.connect(hostname=ip1_hostname,username=ip1_username, password=ip1_password)

std_in, std_out, std_err = ip1_machine.exec_command('ls')
print(f"{std_out.read().decode().split()}")

# based on https://stackoverflow.com/questions/35304525/nested-ssh-using-python-paramiko
ip1_transport = ip1_machine.get_transport()
dest_addr = (ip2, 22)     # "222.222.2.2"
local_addr = (ip1, 22)   # "1111.111.11.11"
cu_channel = ip1_transport.open_channel("direct-tcpip", dest_addr, local_addr)

cu = paramiko.SSHClient()
cu.set_missing_host_key_policy(paramiko.AutoAddPolicy())
cu.connect(ip2, username=root_user, password=root_password, sock=cu_channel)
std_in, std_out, std_err = cu.exec_command('ls')
print(f"{std_out.read().decode().split()}")