Python远程连接模块-Telnet

　　　　　　　Python远程连接模块-Telnet(该协议明文传输数据不安全，推荐使用ssh协议)

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　作者：尹正杰

版权声明：原创作品，谢绝转载！否则将追究法律责任。

　　虽然现在主流的python版本还是2.7，相信2020年python程序员都会偏向Python3.x版本的，今天研究了以下网上的telnet程序包，发现挺有意思的，把短连接的代码贴在这，有兴趣的小伙伴可以自行更改，哈哈哈~

 #！/usr/bin/env python
 #_*_coding:utf-8_*_
 #@author :yinzhengjie
 #blog:http://www.cnblogs.com/yinzhengjie/tag/python%E8%87%AA%E5%8A%A8%E5%8C%96%E8%BF%90%E7%BB%B4%E4%B9%8B%E8%B7%AF/
 #EMAIL:y1053419035@qq.com
 import telnetlib

 def DoTelnet(Host, username, password, finish, commands):
     '''''Telnet远程登录：Windows客户端连接Linux服务器'''
     # 连接Telnet服务器
     tn = telnetlib.Telnet(Host, port=23, timeout=10)
     tn.set_debuglevel(2)

     # 输入登录用户名
     tn.read_until('login: '.encode(encoding="utf-8"))
     tn.write(username.encode(encoding="utf-8") + "\n".encode(encoding="utf-8"))

     # 输入登录密码
     tn.read_until('Password: '.encode(encoding="utf-8"))
     tn.write(password.encode(encoding="utf-8") + '\n'.encode(encoding="utf-8"))

     # 登录完毕后执行命令
     tn.read_until(finish.encode(encoding="utf-8"))
     for command in commands:
         tn.write(('%s\n' % command).encode("utf-8"))
     tn.read_until(finish.encode("utf-8"))
     # 执行完毕后，终止Telnet连接（或输入exit退出）
     tn.close()  # tn.write('exit\n')

 if __name__ == '__main__':
     # 配置选项
     Host = '172.16.96.211'          # Telnet服务器IP
     username = 'yinzhengjie'        # 登录用户名
     password = 'jiubugaosuni'       # 登录密码
     finish = '~]$ '                 # 命令提示符
     commands = ['df -h']            #输入你需要执行的代码
     DoTelnet(Host, username, password, finish, commands)

 #以上代码执行结果如下：
 Telnet(172.16.96.211,23): recv b"\xff\xfd\x18\xff\xfd \xff\xfd#\xff\xfd'"
 Telnet(172.16.96.211,23): IAC DO 24
 Telnet(172.16.96.211,23): IAC DO 32
 Telnet(172.16.96.211,23): IAC DO 35
 Telnet(172.16.96.211,23): IAC DO 39
 Telnet(172.16.96.211,23): recv b'\xff\xfb\x03\xff\xfd\x01\xff\xfd\x1f\xff\xfb\x05\xff\xfd!'
 Telnet(172.16.96.211,23): IAC WILL 3
 Telnet(172.16.96.211,23): IAC DO 1
 Telnet(172.16.96.211,23): IAC DO 31
 Telnet(172.16.96.211,23): IAC WILL 5
 Telnet(172.16.96.211,23): IAC DO 33
 Telnet(172.16.96.211,23): recv b'\xff\xfb\x03'
 Telnet(172.16.96.211,23): IAC WILL 3
 Telnet(172.16.96.211,23): recv b'\xff\xfb\x01CentOS release 6.6 (Final)\r\nKernel 2.6.32-504.e'
 Telnet(172.16.96.211,23): IAC WILL 1
 Telnet(172.16.96.211,23): recv b'l6.x86_64 on an x86_64\r\n'
 Telnet(172.16.96.211,23): recv b'\xf2'
 Telnet(172.16.96.211,23): recv b'login: '
 Telnet(172.16.96.211,23): send b'yinzhengjie\n'
 Telnet(172.16.96.211,23): recv b'Password: '
 Telnet(172.16.96.211,23): send b'jiubugaosuni\n'
 Telnet(172.16.96.211,23): recv b'\r\n'
 Telnet(172.16.96.211,23): recv b'Last login: Fri Mar  2 15:21:07 from bogon\r\n'
 Telnet(172.16.96.211,23): recv b'[yinzhengjie@yinzhengjie ~]$ '
 Telnet(172.16.96.211,23): send b'df -h\n'
 Telnet(172.16.96.211,23): recv b'Filesystem            Size  Used Avail Use% Mounte'
 Telnet(172.16.96.211,23): recv b'd on\r\n/dev/mapper/vg_yinzhengjie-lv_root\r\n        '
 Telnet(172.16.96.211,23): recv b'               50G  6.2G   41G  14% /\r\ntmpfs      '
 Telnet(172.16.96.211,23): recv b'           494M   68K  494M   1% /dev/shm\r\n/dev/vd'
 Telnet(172.16.96.211,23): recv b'a1             477M   29M  424M   7% /boot\r\n/dev/m'
 Telnet(172.16.96.211,23): recv b'apper/vg_yinzhengjie-lv_home\r\n                    '
 Telnet(172.16.96.211,23): recv b'   47G   86M   45G   1% /home\r\n[yinzhengjie@yinzhe'
 Telnet(172.16.96.211,23): recv b'ngjie ~]$ '