如何通过堡垒机连接远程

import paramiko

# 配置堡垒机信息
bastion_host = 'bastion.example.com'
bastion_port = 22
bastion_username = 'your_bastion_username'
bastion_password = 'your_bastion_password'

# 配置目标远程服务器信息
remote_host = 'remote.example.com'
remote_port = 22
remote_username = 'your_remote_username'
remote_password = 'your_remote_password'

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

# 连接堡垒机
ssh.connect(bastion_host, port=bastion_port, username=bastion_username, password=bastion_password)

# 创建一个新的SSH会话通过堡垒机连接到远程服务器
transport = ssh.get_transport()
dest_addr = (remote_host, remote_port)
local_addr = ('localhost', 10022)  # 本地端口转发
channel = transport.open_channel("direct-tcpip", dest_addr, local_addr)

# 通过本地端口转发连接到远程服务器
remote_ssh = paramiko.SSHClient()
remote_ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
remote_ssh.connect('localhost', port=10022, username=remote_username, password=remote_password)

# 执行远程命令
stdin, stdout, stderr = remote_ssh.exec_command('ls -l')
print(stdout.read().decode())

# 关闭连接
remote_ssh.close()
ssh.close()