DoesServiceExist.py

#!/usr/bin/env python
# Determining whether the services are working at a remote location
from socket import * 

def DoesServiceExist(host, port):
    targetIP = gethostbyname(host)    
    s = socket(AF_INET, SOCK_STREAM)
    s.settimeout(1)
    result = s.connect_ex((targetIP,port))
    s.close()
    if(result == 0) :
            return True
    return False

#example
if DoesServiceExist("smtp.gmail.com",465):
    print("YES mail server is UP")
else:
    print("NO mail server is DOWN")

Python code for determining whether the services are working at a remote location