A multithreaded port scanner written in Python using socket. Given an IP, a start port and an end port, the scanner will check if the ports in between (inclusive) are open.

Add command line argument parser.

Results printed using multithread ended up printing in a messy order and layout.

A solution to this issue is to use lock, however this will reduce the speed of the program to that of a singlethread port scanner. To enable the lock, uncomment the lines in the function port_scan()