Python Check Internet Access Script

We had to check a linux server’s access status this week, so I write a python script to check and log internet status in the real.

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'''
check ip address access every 5 seconds.
log into ping.log file.
show up times and down times.
requirement:
  need install fping.(sudo apt install fping)
'''

import os
import time
from datetime import datetime
hostname = "google.com" #example

def check_one_time():
  response = os.system("fping " + hostname)
  if response == 0:
    msg = "OK - " +  datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    with open('ping.log', 'a') as myfile:
      myfile.write(msg + ',\n')
    print '----------------------------------- up -----------------------------------'
    return True
  else:
    msg = "NG - " +  datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    with open('ping.log', 'a') as myfile:
      myfile.write(msg + ',\n')
    print '---------------------------------- down ----------------------------------'
    return False

up_times = 0
down_times = 0
while True:
  if check_one_time():
    up_times += 1
  else:
    down_times += 1
  msg = 'down_times = ' + str(down_times) + '; up_times = ' + str(up_times)
  with open('ping.log', 'a') as myfile:
    myfile.write(msg + ',\n\n')
  time.sleep(5)