堡垒机如何与服务器连接

import paramiko

# 配置信息
ssh_host = 'your_bastion_host'
ssh_port = 22
ssh_username = 'your_username'
ssh_password = 'your_password'
remote_host = 'your_remote_server'
remote_port = 22

# 创建SSH客户端
ssh_client = paramiko.SSHClient()
ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# 连接到堡垒机
ssh_client.connect(ssh_host, port=ssh_port, username=ssh_username, password=ssh_password)

# 创建SSH隧道
transport = ssh_client.get_transport()
transport.request_port_forward('', remote_port)

# 连接到目标服务器
local_port = transport.accept(1000)
if local_port is None:
    raise Exception("SSH隧道连接失败")

# 使用本地端口连接到目标服务器
target_client = paramiko.SSHClient()
target_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
target_client.connect('localhost', port=local_port.local_bind_port, username=ssh_username, password=ssh_password)

# 执行命令
stdin, stdout, stderr = target_client.exec_command('ls -l')
print(stdout.read().decode())

# 关闭连接
target_client.close()
ssh_client.close()