It is a common technique used by penetration testers and hackers to find open doors through which hackers can gain access to any organization's system. During this scan, hackers must discover the live hosts, firewalls installed, operating systems used, various devices connected to the system, and the topology of the targeted organisation. Once the Hacker obtains the IP address of the victim organisation by scanning TCP and UDP ports, the Hacker maps this organization's network under his/her control. Amap is a port scanning application.