Script to monitor Dnscache service

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Release Time

08/30/2022

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341 times

Update Time

11/18/2024

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Script monitroing NUMsp

Description :

This script moniters dnscache ,if service is stoppoed this script will restart .

Note:

1. Run as local system user.

Procedure's Instructions

#To define a particular parameter, replace the 'parameterName' inside itsm.getParameter('parameterName') with that parameter's name
service_name=r'Dnscache'   # Give the exact service name

import os
import sys
from subprocess import PIPE,Popen

def alert(arg):
    sys.stderr.write("%d%d%d" % (arg, arg, arg))

import ctypes
class disable_file_system_redirection:
    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection
    def __enter__(self):
        self.old_value = ctypes.c_long()
        self.success = self._disable(ctypes.byref(self.old_value))
    def __exit__(self, type, value, traceback):
        if self.success:
            self._revert(self.old_value)

import os

def ecmd(command):
    class disable_file_system_redirection:
        _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
        _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection
        def __enter__(self):
            self.old_value = ctypes.c_long()
            self.success = self._disable(ctypes.byref(self.old_value))
        def __exit__(self, type, value, traceback):
            if self.success:
                self._revert(self.old_value)

with disable_file_system_redirection():
        obj = Popen(command, shell = True, stdout = PIPE, stderr = PIPE)
    out, err = obj.communicate()
    ret=obj.returncode
    if ret==0:
        if out:
            return out.strip()
        else:
            return ret
    else:
        if err:
            return err.strip()
        else:
            return ret
check_win = ecmd(r'systeminfo | findstr /B /C:"OS Name"')
if "Server" in check_win:
    with disable_file_system_redirection():
        #y=os.popen("wmic service "+service_name+" get state").read()
        process=Popen("wmic service "+service_name+" get state",stdout=PIPE,stderr=PIPE)
        res,err=process.communicate()
        if err:
            print err
            alert(0)
        else:
            if "Stopped" in res:
                alert(1)
                try:            
                    print 'The service '+service_name+' was already in stopped state'           
                    print 'So starting the '+service_name+ 'service ........'            
                    x=os.popen('net start '+service_name).read()            
                    print 'The Service '+service_name+' has been successfully started'            
                except Exception as err: 
                    print "Unable to start the Service" +service_name+'due to below error'
                    print err                                         
            else:
                alert(0)
                print "The service "+service_name+' was already in running state'

else:
    print "This Procedure only works on Server Machine"

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Script to monitor Dnscache service

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