Basic python program in linux to see if a port is open

Below is a simple python program in linux to see if a port is open or close.

#!/usr/bin/python
import socket
ip = raw_input("Enter the IP Address: ")
port = input("Enter the Port Number: ")
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if sock.connect_ex((ip,port)):
        print "Port",port, "is closed"
else:
        print "Port",port, "is open"




We will use which python.py to know about the location of python, so we can use it in hash bang.
next we are importing the socket library.
taking as input and port are self explanatory.
SOCKET constants and functions are used to get socket connected to sock variable.
connect_ex will throw an exception if the port is closed , and we are utilizing it to display "the port is closed"
else it will be open.

make it executable and run,...

I am not going into details, as there are many tutorials out there to learn the basics.

CYB3RTR0N