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") + "
".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") + '
'.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
' % 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
')


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"xffxfdx18xffxfd xffxfd#xffxfd'"
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'xffxfbx03xffxfdx01xffxfdx1fxffxfbx05xffxfd!'
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'xffxfbx03'
Telnet(172.16.96.211,23): IAC WILL 3
Telnet(172.16.96.211,23): recv b'xffxfbx01CentOS release 6.6 (Final)
Kernel 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
'
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
'
Telnet(172.16.96.211,23): recv b'Password: '
Telnet(172.16.96.211,23): send b'jiubugaosuni
'
Telnet(172.16.96.211,23): recv b'
'
Telnet(172.16.96.211,23): recv b'Last login: Fri Mar  2 15:21:07 from bogon
'
Telnet(172.16.96.211,23): recv b'[yinzhengjie@yinzhengjie ~]$ '
Telnet(172.16.96.211,23): send b'df -h
'
Telnet(172.16.96.211,23): recv b'Filesystem            Size  Used Avail Use% Mounte'
Telnet(172.16.96.211,23): recv b'd on
/dev/mapper/vg_yinzhengjie-lv_root
        '
Telnet(172.16.96.211,23): recv b'               50G  6.2G   41G  14% /
tmpfs      '
Telnet(172.16.96.211,23): recv b'           494M   68K  494M   1% /dev/shm
/dev/vd'
Telnet(172.16.96.211,23): recv b'a1             477M   29M  424M   7% /boot
/dev/m'
Telnet(172.16.96.211,23): recv b'apper/vg_yinzhengjie-lv_home
                    '
Telnet(172.16.96.211,23): recv b'   47G   86M   45G   1% /home
[yinzhengjie@yinzhe'
Telnet(172.16.96.211,23): recv b'ngjie ~]$ '