利用telnetlib模块实现交换机配置批量备份脚本

11-08 DEVOPS,PYTHON Eric Winn 13 views

利用telnetlib模块实现交换机配置批量备份脚本

11-08 13 views

本文中是以h3c的为例，其它品牌的请自行扩展
另本文中是以查询信息相关信息为例，换成查看配置的命令即可起到备份配置的作用

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Author         : Eric Winn
# @Email          : eng.eric.winn@gmail.com
# @Time           : 2018/11/8 9:15
# @Version        : 1.0
# @File           : switch_telnet.py
# @Software       : PyCharm


import telnetlib
import time
from multiprocessing import Process
import datetime

now = datetime.datetime.now()

# 将结果定入到文件中
def Output(ip, msg):
    # 输出时的文件名
    filename = "{0}_{1}-{2}-{3}_{4}-{5}-{6}.log".format(ip, now.year, now.month, now.day, now.hour,
                                                        now.minute, now.second)
    print('====>{}'.format(filename))
    time.sleep(.1)
    try:
        fp = open(filename, "w")
        fp.write(msg)
    except Exception, e:
        print(e)
        return 1
    fp.close()
    return 0


# Factory继承Process，多进程
class TelnetClient(Process):
    def __init__(self, host, username, password):
        Process.__init__(self)
        self.host = host
        self.username = username
        self.password = password

    def run(self):
        try:
            # 建立连接
            tn = telnetlib.Telnet(self.host, port=23, timeout=5)
            tn.set_debuglevel(5)
            tn.read_until(b"Username:", timeout=2)
            tn.write(self.username + b"\n")
            tn.read_until(b"Password:", timeout=2)
            tn.write(self.password + b"\n")
            tn.write(b"\n")
            time.sleep(1)
            output = ""
            for cmds in open(r'cmds.txt', 'r').readlines():
                cmd = cmds.strip('\n')
                tn.write(cmd + b'\n')
                # 不接收除dis外的其它命令
                if cmd in ['dis cpu', 'dis memory', 'dis pow', 'dis fan', 'dis envi',
                               'dis version']:
                    i = True
                    time.sleep(10)
                    output += "\r\n"
                    # 解决多屏输出问题
                    while i:
                        # 如果输出是以'---- More ----'结尾，则输入空格换屏
                        ret = tn.read_until('---- More ----', 5)
                        if ret.endswith('---- More ----'):
                            # 将本次的输出结果去'---- More ----'读入到output中
                            output += ret.strip('---- More ----')
                            for i in range(10):
                                # 输入空格
                                tn.write(' ')
                                time.sleep(0.1)
                        else:
                            # 不是以'---- More ----'结尾，保存本次输出到output中并结束while循环
                            output += ret
                            tn.write("\r\n")
                            i = False
                else:
                    time.sleep(10)
                    tn.write("\r\n")
            time.sleep(10)
            output += tn.read_very_eager()
            # 输将结果出到文件
            ret = Output(self.host, output)
            if ret == 1: return 1
        except:
            print("Can't connection %s" % self.host)
            return


if __name__ == "__main__":
    username = "monitor"
    password = "123456"
    for host in open('switch_list.txt').readlines():
        client = TelnetClient(host.strip('\n'), username, password)
        client.start()

#!/usr/bin/env python3

# -*- coding: utf-8 -*-

# @Author : Eric Winn

# @Email : eng.eric.winn@gmail.com

# @Time : 2018/11/8 9:15

# @Version : 1.0

# @File : switch_telnet.py

# @Software : PyCharm

import telnetlib

import time

from multiprocessing import Process

import datetime

now = datetime.datetime.now()

# 将结果定入到文件中

def Output(ip, msg):

# 输出时的文件名

filename = "{0}_{1}-{2}-{3}_{4}-{5}-{6}.log".format(ip, now.year, now.month, now.day, now.hour,

now.minute, now.second)

print('====>{}'.format(filename))

time.sleep(.1)

try:

fp = open(filename, "w")

fp.write(msg)

except Exception, e:

print(e)

return 1

fp.close()

return 0

# Factory继承Process，多进程

class TelnetClient(Process):

def __init__(self, host, username, password):

Process.__init__(self)

self.host = host

self.username = username

self.password = password

def run(self):

try:

# 建立连接

tn = telnetlib.Telnet(self.host, port=23, timeout=5)

tn.set_debuglevel(5)

tn.read_until(b"Username:", timeout=2)

tn.write(self.username + b"\n")

tn.read_until(b"Password:", timeout=2)

tn.write(self.password + b"\n")

tn.write(b"\n")

time.sleep(1)

output = ""

for cmds in open(r'cmds.txt', 'r').readlines():

cmd = cmds.strip('\n')

tn.write(cmd + b'\n')

# 不接收除dis外的其它命令

if cmd in ['dis cpu', 'dis memory', 'dis pow', 'dis fan', 'dis envi',

'dis version']:

i = True

time.sleep(10)

output += "\r\n"

# 解决多屏输出问题

while i:

# 如果输出是以'---- More ----'结尾，则输入空格换屏

ret = tn.read_until('---- More ----', 5)

if ret.endswith('---- More ----'):

# 将本次的输出结果去'---- More ----'读入到output中

output += ret.strip('---- More ----')

for i in range(10):

# 输入空格

tn.write(' ')

time.sleep(0.1)

else:

# 不是以'---- More ----'结尾，保存本次输出到output中并结束while循环

output += ret

tn.write("\r\n")

i = False

else:

time.sleep(10)

tn.write("\r\n")

time.sleep(10)

output += tn.read_very_eager()

# 输将结果出到文件

ret = Output(self.host, output)

if ret == 1: return 1

except:

print("Can't connection %s" % self.host)

return

if __name__ == "__main__":

username = "monitor"

password = "123456"

for host in open('switch_list.txt').readlines():

client = TelnetClient(host.strip('\n'), username, password)

client.start()

如果想赏钱，可以用微信扫描下面的二维码，一来能刺激我写博客的欲望，二来好维护云主机的费用；另外再次标注博客原地址 itnotebooks.com 感谢！

版权属于: Eric

原文地址: https://www.itnotebooks.com/?p=609

转载时必须以链接形式注明原始出处及本声明。

7 条评论

devin说道：

2020-08-13 11:15

我用的pycharm断点测试，到了
def run(self):
try:
就不往下执行了，直接跳到最后了，请问什么情况呢？

回复
devin说道：

2020-08-10 12:27

有报错，请问大佬如何处理，谢谢！我用的python 3.8
Telnet(10.1.8.5,23): recv b’************************************************\r\n’
Telnet(10.1.8.5,23): recv b’* Copyright (c) 2004-2016 Hangzhou H3C Tech. Co., ‘
Telnet(10.1.8.5,23): recv b”Ltd. All rights reserved. *\r\n* Without the owner’”
Telnet(10.1.8.5,23): recv b’s prior written consent, ‘
Telnet(10.1.8.5,23): recv b’ *\r\n* no decompiling or reverse-engineering ‘
Telnet(10.1.8.5,23): recv b’shall be allowed. *\r\n**********’
Telnet(10.1.8.5,23): recv b’**************************************************’
Telnet(10.1.8.5,23): recv b’******************\r\n’
Telnet(10.1.8.5,23): recv b’\xff\xfc\x01′
Telnet(10.1.8.5,23): IAC WONT 1
Telnet(10.1.8.5,23): recv b’\xff\xfc\x03′
Telnet(10.1.8.5,23): IAC WONT 3
Telnet(10.1.8.5,23): recv b’\xff\xfe\x18′
Telnet(10.1.8.5,23): IAC DONT 24
Telnet(10.1.8.5,23): recv b’\xff\xfe\x1f’
Telnet(10.1.8.5,23): IAC DONT 31
Telnet(10.1.8.5,23): recv b’\r\n\r\nLogin authentication\r\n\r\n’
Telnet(10.1.8.5,23): recv b’\r\nUsername:’
Can’t connection 10.1.8.5

回复
devin说道：

2020-08-10 12:24

有报错，请问大佬如何处理，谢谢！我用的python 3.8
Telnet(10.1.8.5,23): recv b’************************************************\r\n’
Telnet(10.1.8.5,23): recv b’* Copyright (c) 2004-2016 Hangzhou H3C Tech. Co., ‘
Telnet(10.1.8.5,23): recv b”Ltd. All rights reserved. *\r\n* Without the owner'”
Telnet(10.1.8.5,23): recv b’s prior written consent, ‘
Telnet(10.1.8.5,23): recv b’ *\r\n* no decompiling or reverse-engineering ‘
Telnet(10.1.8.5,23): recv b’shall be allowed. *\r\n**********’
Telnet(10.1.8.5,23): recv b’**************************************************’
Telnet(10.1.8.5,23): recv b’******************\r\n’
Telnet(10.1.8.5,23): recv b’\xff\xfc\x01′
Telnet(10.1.8.5,23): IAC WONT 1
Telnet(10.1.8.5,23): recv b’\xff\xfc\x03′
Telnet(10.1.8.5,23): IAC WONT 3
Telnet(10.1.8.5,23): recv b’\xff\xfe\x18′
Telnet(10.1.8.5,23): IAC DONT 24
Telnet(10.1.8.5,23): recv b’\xff\xfe\x1f’
Telnet(10.1.8.5,23): IAC DONT 31
Telnet(10.1.8.5,23): recv b’\r\n\r\nLogin authentication\r\n\r\n’
Telnet(10.1.8.5,23): recv b’\r\nUsername:’
Can’t connection 10.1.1.1

回复
Mr说道：

2020-07-08 10:25

“D:\Program Files (x86)\python3.6\python.exe” D:/desktop/python3.6/1.py
Telnet(192.168.10.254,23): recv b’\r\r\nWarning: Telnet is not a secure protocol, and i’
Telnet(192.168.10.254,23): recv b’t is recommended to use Stelnet.\r\n\r\nLogin authenti’
Telnet(192.168.10.254,23): recv b’cation\r\n\r\n\r\nUsername:\xff\xfb\x01\xff\xfb\x01\xff\xfb\x01\xff\xfb\x03\xff\xfd\x18\xff\xfd\x1f’
Telnet(192.168.10.254,23): IAC WILL 1
Telnet(192.168.10.254,23): IAC WILL 1
Telnet(192.168.10.254,23): IAC WILL 1
Telnet(192.168.10.254,23): IAC WILL 3
Telnet(192.168.10.254,23): IAC DO 24
Telnet(192.168.10.254,23): IAC DO 31
Can’t connection 192.168.10.254

回复
Mr说道：

2020-07-08 10:24

有报错哦，python版本是3.6。希望大佬能够不吝赐教 😀

回复
www说道：

2020-04-27 15:56

出现了类型报错。

回复
1. Eric Winn说道：
  
  2020-04-27 20:37
  
  贴出来看看
  
  回复

利用telnetlib模块实现交换机配置批量备份脚本

利用telnetlib模块实现交换机配置批量备份脚本

7 条评论

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