ssh 通过跳板机连接到远程服务器

ssh 通过跳板机连接到远程服务器

import paramiko
from sshtunnel import SSHTunnelForwarder
import threading


def readData(shell):
    while True:
        data = shell.recv(2048)
        if not data:
            print("quit now")
            break
        data = data.decode()
        print(data, end = "")


def main():
    port104 = 22
    port105 = 22
    localport = 10022
    with SSHTunnelForwarder(ssh_address_or_host=('192.168.1.104', port104), ssh_username="104usr", ssh_password="104pwd",
                            remote_bind_address=("192.168.1.105", port105), local_bind_address=('127.0.0.1', localport)) as tunnel:
        client = paramiko.SSHClient()
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        client.connect(tunnel.local_bind_host, tunnel.local_bind_port, username = "105usr", password = "105pwd")
        shell = client.invoke_shell()

        thread = threading.Thread(target=readData, args=(shell,))
        thread.start()

        shell.sendall("pwd
")
        shell.sendall("ifconfig
")
        shell.sendall("exit
")

        thread.join()
        client.close()


if __name__ == '__main__':
    main()

上面的代码通过, 192.168.1.104 连接到 192.168.1.105

其中 192.168.1.104 是跳板机 ip, 192.168.1.105 是我们需要连接的服务器. 某些情况下, 我们无法直接连接到服务器, 而有其它主机可以连接到该服务器时就可以发挥作用了.