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

#!/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()

其他回答

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。

使用这个,它在python 2.7上测试过,工作很好,如果成功,它返回以毫秒为单位的ping时间,失败时返回False。

import platform,subproccess,re
def Ping(hostname,timeout):
    if platform.system() == "Windows":
        command="ping "+hostname+" -n 1 -w "+str(timeout*1000)
    else:
        command="ping -i "+str(timeout)+" -c 1 " + hostname
    proccess = subprocess.Popen(command, stdout=subprocess.PIPE)
    matches=re.match('.*time=([0-9]+)ms.*', proccess.stdout.read(),re.DOTALL)
    if matches:
        return matches.group(1)
    else: 
        return False
import subprocess
ping_response = subprocess.Popen(["/bin/ping", "-c1", "-w100", "192.168.0.1"], stdout=subprocess.PIPE).stdout.read()

很多答案都忽略了一点(至少在Windows中),如果ping命令收到“目标主机不可达”的回复,它将返回0(表示成功)。

下面是我的代码,它检查b' ttl ='是否在响应中,因为它只在ping到达主机时才出现。注意:此代码的大部分是基于这里的其他答案。

import platform
import subprocess

def ping(ipAddr, timeout=100):
    '''
    Send a ping packet to the specified host, using the system ping command.
    Accepts ipAddr as string for the ping destination.
    Accepts timeout in ms for the ping timeout.
    Returns True if ping succeeds otherwise Returns False.
        Ping succeeds if it returns 0 and the output includes b'TTL='
    '''
    if platform.system().lower() == 'windows':
        numFlag = '-n'
    else:
        numFlag = '-c'
    completedPing = subprocess.run(['ping', numFlag, '1', '-w', str(timeout), ipAddr],
                                   stdout=subprocess.PIPE,    # Capture standard out
                                   stderr=subprocess.STDOUT)  # Capture standard error
    # print(completedPing.stdout)
    return (completedPing.returncode == 0) and (b'TTL=' in completedPing.stdout)

print(ping('google.com'))

注意:这将捕获输出而不是打印输出,因此如果您希望看到ping的输出,则需要打印completedPing。返回前的Stdout。

#!/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()