Python获取网段内ping通IP的方法-创新互联

问题描述

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在某些问题背景下,需要确认是否多台终端在线,也就是会使用我们牛逼的ping这个命令,做一些的ping操作,如果需要确认的设备比较少,也还能承受。倘若,在手中维护的设备很多。那么这无疑会变成一个恼人的问题。脚本的作用就凸显了。另外,我们需要使用多线程的一种措施,否则单线程很难在很短的时间内拿到统计结果。

应用背景

有多台设备需要维护,周期短,重复度高;

单台设备配备多个IP,需要经常确认网络是否通常;

等等其他需要确认网络是否畅通的地方

问题解决

使用python自带threading模块,实现多线程的并发操作。如果本机没有相关的python模块,请使用pip install package name安装之。

threading并发ping操作代码实现

这部分代码取材于网络,忘记是不是stackoverflow,这不重要,重要的是这段代码或者就有价值,代码中部分关键位置做了注释,可以自行定义IP所属的网段,以及使用的线程数量。从鄙人的观点来看是一段相当不错的代码,

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

import sys
import os
import platform
import subprocess
import Queue
import threading
import ipaddress
import re

def worker_func(pingArgs, pending, done):
 try:
  while True:
   # Get the next address to ping.
   address = pending.get_nowait()

   ping = subprocess.Popen(pingArgs + [address],
    stdout = subprocess.PIPE,
    stderr = subprocess.PIPE
   )
   out, error = ping.communicate()

   if re.match(r".*, 0% packet loss.*", out.replace("\n", "")):
    done.put(address)

   # Output the result to the 'done' queue.
 except Queue.Empty:
  # No more addresses.
  pass
 finally:
  # Tell the main thread that a worker is about to terminate.
  done.put(None)

# The number of workers.
NUM_WORKERS = 14

plat = platform.system()
scriptDir = sys.path[0]
hosts = os.path.join(scriptDir, 'hosts.txt')

# The arguments for the 'ping', excluding the address.
if plat == "Windows":
 pingArgs = ["ping", "-n", "1", "-l", "1", "-w", "100"]
elif plat == "Linux":
 pingArgs = ["ping", "-c", "1", "-l", "1", "-s", "1", "-W", "1"]
else:
 raise ValueError("Unknown platform")

# The queue of addresses to ping.
pending = Queue.Queue()

# The queue of results.
done = Queue.Queue()

# Create all the workers.
workers = []
for _ in range(NUM_WORKERS):
 workers.append(threading.Thread(target=worker_func, args=(pingArgs, pending, done)))

# Put all the addresses into the 'pending' queue.
for ip in list(ipaddress.ip_network(u"10.69.69.0/24").hosts()):
 pending.put(str(ip))

# Start all the workers.
for w in workers:
 w.daemon = True
 w.start()

# Print out the results as they arrive.

numTerminated = 0
while numTerminated < NUM_WORKERS:
 result = done.get()
 if result is None:
  # A worker is about to terminate.
  numTerminated += 1
 else:
  print result # print out the ok ip

# Wait for all the workers to terminate.
for w in workers:
 w.join()

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