跳过堡垒机实现服务器连接

import paramiko

# 配置堡垒机和目标服务器的信息
jump_host = 'jump.example.com'
jump_user = 'jumpuser'
jump_password = 'jumppassword'
target_host = 'target.example.com'
target_user = 'targetuser'
target_password = 'targetpassword'

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

# 连接到堡垒机
ssh.connect(jump_host, username=jump_user, password=jump_password)

# 创建一个代理跳板
transport = ssh.get_transport()
dest_addr = (target_host, 22)
local_addr = ('localhost', 10022)
channel = transport.open_channel("direct-tcpip", dest_addr, local_addr)

# 通过代理跳板连接到目标服务器
target_ssh = paramiko.SSHClient()
target_ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
target_ssh.connect(target_host, username=target_user, password=target_password, sock=channel)

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

# 关闭连接
target_ssh.close()
ssh.close()