Making a Fast Port Scanner

Question

So I\'m making a port scanner in python...

import socket
ip = \"External IP\"
s = socket.socket(2, 1) #socket.AF_INET, socket.SOCK_STREAM

def porttry(ip, port):         


        

Answer 1

socket.setdefualttimeout (time)

is used to keep trying to connect with port for perticular time...when you send request and there is timeout set for 2 seconds so it will try to connect with port for 2 seconds....if there will be no response from that port in 2 seconds....it will be count as a dead port