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
使用Multi-ping (pip install multiPing),我做了这个简单的代码(简单地复制和粘贴,如果你愿意!):
from multiping import MultiPing
def ping(host,n = 0):
if(n>0):
avg = 0
for i in range (n):
avg += ping(host)
avg = avg/n
# Create a MultiPing object to test hosts / addresses
mp = MultiPing([host])
# Send the pings to those addresses
mp.send()
# With a 1 second timout, wait for responses (may return sooner if all
# results are received).
responses, no_responses = mp.receive(1)
for addr, rtt in responses.items():
RTT = rtt
if no_responses:
# Sending pings once more, but just to those addresses that have not
# responded, yet.
mp.send()
responses, no_responses = mp.receive(1)
RTT = -1
return RTT
用法:
#Getting the latency average (in seconds) of host '192.168.0.123' using 10 samples
ping('192.168.0.123',10)
如果你想要一个单一的样本,第二个参数“10”可以忽略!
希望能有所帮助!
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 '])。
#!/usr/bin/python3
import subprocess as sp
def ipcheck():
status,result = sp.getstatusoutput("ping -c1 -w2 " + str(pop))
if status == 0:
print("System " + str(pop) + " is UP !")
else:
print("System " + str(pop) + " is DOWN !")
pop = input("Enter the ip address: ")
ipcheck()
下面是一个使用Python的子进程模块和底层操作系统提供的ping CLI工具的解决方案。在Windows和Linux上测试。支持设置网络超时。不需要根权限(至少在Windows和Linux上)。
import platform
import subprocess
def ping(host, network_timeout=3):
"""Send a ping packet to the specified host, using the system "ping" command."""
args = [
'ping'
]
platform_os = platform.system().lower()
if platform_os == 'windows':
args.extend(['-n', '1'])
args.extend(['-w', str(network_timeout * 1000)])
elif platform_os in ('linux', 'darwin'):
args.extend(['-c', '1'])
args.extend(['-W', str(network_timeout)])
else:
raise NotImplemented('Unsupported OS: {}'.format(platform_os))
args.append(host)
try:
if platform_os == 'windows':
output = subprocess.run(args, check=True, universal_newlines=True).stdout
if output and 'TTL' not in output:
return False
else:
subprocess.run(args, check=True)
return True
except (subprocess.CalledProcessError, subprocess.TimeoutExpired):
return False
我的解决方法是:
def ping(self, host):
res = False
ping_param = "-n 1" if system_name().lower() == "windows" else "-c 1"
resultado = os.popen("ping " + ping_param + " " + host).read()
if "TTL=" in resultado:
res = True
return res
“TTL”是判断ping是否正确的方法。 Saludos
我自己的方法结合了上面的几个答案:
def ping(host, show_log=False, package_count=1):
ping.param = "-n" if platform.system().lower() == 'windows' else "-c"
result = subprocess.run(['ping', ping.param, str(package_count), host],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
output = result.stdout
if show_log:
print('return code: ', result.returncode)
print(output.decode("utf-8"))
return result.returncode == 0 and (b'TTL=' in output or b'ttl=' in output)
在OSX Monterey上测试。
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