在Python中,是否有一种方法可以通过ICMP来ping服务器,如果服务器响应则返回TRUE,如果没有响应则返回FALSE ?
当前回答
我使用这篇文章中回答的想法,但只使用更新的推荐子进程模块和python3:
import subprocess
import platform
operating_sys = platform.system()
nas = '192.168.0.10'
def ping(ip):
# ping_command = ['ping', ip, '-n', '1'] instead of ping_command = ['ping', ip, '-n 1'] for Windows
ping_command = ['ping', ip, '-n', '1'] if operating_sys == 'Windows' else ['ping', ip, '-c 1']
shell_needed = True if operating_sys == 'Windows' else False
ping_output = subprocess.run(ping_command,shell=shell_needed,stdout=subprocess.PIPE)
success = ping_output.returncode
return True if success == 0 else False
out = ping(nas)
print(out)
其他回答
此函数适用于任何操作系统(Unix、Linux、macOS和Windows) Python 2和Python 3
编辑: @radato os。System被subprocess.call取代。这避免了在没有验证主机名字符串的情况下shell注入漏洞。
import platform # For getting the operating system name
import subprocess # For executing a shell command
def ping(host):
"""
Returns True if host (str) responds to a ping request.
Remember that a host may not respond to a ping (ICMP) request even if the host name is valid.
"""
# Option for the number of packets as a function of
param = '-n' if platform.system().lower()=='windows' else '-c'
# Building the command. Ex: "ping -c 1 google.com"
command = ['ping', param, '1', host]
return subprocess.call(command) == 0
注意,根据Windows上的@ikrase,如果你得到一个目标主机不可达错误,这个函数仍然会返回True。
解释
该命令在Windows和类unix系统中都是ping。 选项-n (Windows)或-c (Unix)控制包的数量,在本例中设置为1。
platform.system()返回平台名称。前女友。macOS上的“达尔文”。 Subprocess.call()执行一个系统调用。例如subprocess.call ([' ls ', ' - l '])。
import subprocess
ping_response = subprocess.Popen(["/bin/ping", "-c1", "-w100", "192.168.0.1"], stdout=subprocess.PIPE).stdout.read()
如果你不需要支持Windows,这里有一个非常简洁的方法:
import os
hostname = "google.com" #example
response = os.system("ping -c 1 " + hostname)
#and then check the response...
if response == 0:
print hostname, 'is up!'
else:
print hostname, 'is down!'
这是因为如果连接失败,ping将返回一个非零值。(实际返回值因网络错误而异。)您还可以使用'-t'选项更改ping超时(以秒为单位)。注意,这将向控制台输出文本。
我的版本的ping函数:
适用于Python 3.5及更高版本,适用于Windows和Linux。 在Windows上,如果ping命令失败且“目标主机不可达”,则返回False。 并且不显示任何输出,无论是弹出窗口还是命令行。
import platform, subprocess
def ping(host_or_ip, packets=1, timeout=1000):
''' Calls system "ping" command, returns True if ping succeeds.
Required parameter: host_or_ip (str, address of host to ping)
Optional parameters: packets (int, number of retries), timeout (int, ms to wait for response)
Does not show any output, either as popup window or in command line.
Python 3.5+, Windows and Linux compatible
'''
# The ping command is the same for Windows and Linux, except for the "number of packets" flag.
if platform.system().lower() == 'windows':
command = ['ping', '-n', str(packets), '-w', str(timeout), host_or_ip]
# run parameters: capture output, discard error messages, do not show window
result = subprocess.run(command, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, creationflags=0x08000000)
# 0x0800000 is a windows-only Popen flag to specify that a new process will not create a window.
# On Python 3.7+, you can use a subprocess constant:
# result = subprocess.run(command, capture_output=True, creationflags=subprocess.CREATE_NO_WINDOW)
# On windows 7+, ping returns 0 (ok) when host is not reachable; to be sure host is responding,
# we search the text "TTL=" on the command output. If it's there, the ping really had a response.
return result.returncode == 0 and b'TTL=' in result.stdout
else:
command = ['ping', '-c', str(packets), '-w', str(timeout), host_or_ip]
# run parameters: discard output and error messages
result = subprocess.run(command, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
return result.returncode == 0
你想怎么用就怎么用。
1 #!/usr/bin/python
2
3 import os
4 import sys
5 import time
6
7 os.system("clear")
8 home_network = "172.16.23."
9 mine = []
10
11 for i in range(1, 256):
12 z = home_network + str(i)
13 result = os.system("ping -c 1 "+ str(z))
14 os.system("clear")
15 if result == 0:
16 mine.append(z)
17
18 for j in mine:
19 print "host ", j ," is up"
一个简单的我只是在一分钟内煮出来的..使用icmplib需要根privs下面的工作非常好! HTH
推荐文章
- 如何从Python函数中返回两个值?
- 前一个月的Python日期
- Python中方括号括起来的列表和圆括号括起来的列表有什么区别?
- Python日志记录不输出任何东西
- 每n秒运行特定代码
- SQLAlchemy是否有与Django的get_or_create等价的函数?
- 如何将python datetime转换为字符串,具有可读格式的日期?
- 美丽的汤和提取div及其内容的ID
- 在Python中重置生成器对象
- 用Python构建最小的插件架构
- model.eval()在pytorch中做什么?
- Tensorflow 2.0:模块“Tensorflow”没有属性“Session”
- 从环境文件中读入环境变量
- 在OSX 10.11中安装Scrapy时,“OSError: [Errno 1]操作不允许”(El Capitan)(系统完整性保护)
- 如何删除熊猫数据帧的最后一行数据