在日常工作中我们经常要对 Cisco 的网络设备的配置进行备份，或者和 suricata 联动的时候要执行操作。
方法其实很简单，调用 python 的相应模块即可。
准备工作如下：
首选需要在/export/servers/python363装好 python 3.6, pip install netmiko
其次，在路由器上可以配置en的密码
然后依次执行备份就可以了。
1#!/export/servers/python363/bin/python3.6
2from netmiko import Netmiko
3import time
4tw_bgp = {
5 "device_type": "cisco_ios",
6 "host": "tw-bgp",
7 "ip": "192.168.1.10",
8 "username": "noc",
9 "use_keys": True,
10 "secret" : "xxxxxxxx",
11 "key_file": "/root/.ssh/id_jump_rsa_new",
12}
13tw_r1_e1 = {
14 "device_type": "cisco_ios",
15 "host": "tw-r1-e1",
16 "ip": "192.168.1.11",
17 "username": "noc",
18 "use_keys": True,
19 "key_file": "/root/.ssh/id_jump_rsa_new",
20}
21tw_r1_e2 = {
22 "device_type": "cisco_ios",
23 "host": "tw-r1-e2",
24 "ip": "192.168.1.12",
25 "username": "noc",
26 "use_keys": True,
27 "key_file": "/root/.ssh/id_jump_rsa_new",
28}
29tw_r2_e1 = {
30 "device_type": "cisco_ios",
31 "host": "tw-r2-e1",
32 "ip": "192.168.1.13",
33 "username": "noc",
34 "use_keys": True,
35 "key_file": "/root/.ssh/id_jump_rsa_new",
36}
37tw_r2_e2 = {
38 "device_type": "cisco_ios",
39 "host": "tw-r2-e2",
40 "ip": "192.168.1.14",
41 "username": "noc",
42 "use_keys": True,
43 "key_file": "/root/.ssh/id_jump_rsa_new",
44}
45
46devices=[tw_bgp, tw_r1_e1, tw_r1_e2, tw_r2_e1, tw_r2_e2]
47
48for dev in devices:
49 name = dev["ip"]
50 connection = Netmiko(**dev)
51 connection.enable()
52 out = connection.send_command("show running-config")
53 calender = time.strftime("%Y%m%d")
54 file_name = '{}-{}.txt'.format(dev["host"],calender)
55 file = open(file_name ,"w")
56 file.write(out)
57 file.close()
58 connection.disconnect()
59 print("BACKUP for %s done" %dev["host"])
