Enter the Target IP/Host and some custom TCP ports for scanning. Make sure to separate each port with a new line.
The tool does not accept an unlimited number of ports but 20-30 ports can be handled with no problems.
How a Port Scanner Tool Works?
A port scanner is a tool that scans a network or device to identify open ports and services. The tool sends a request to connect to a specific Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) port on a device and records the response.
If the port is open and accepting requests, the scanner will receive a response indicating that the port is open. If the port is closed, the scanner will receive a response indicating that the port is closed.
Port scanners can use a variety of techniques to scan ports, including SYN, FIN, XMAS, and NULL scans. Some port scanners can also detect the operating system and services running on a device based on the responses they receive.
Port scanners can be used for both legitimate purposes, such as network administration and security testing, as well as malicious purposes, such as identifying vulnerable systems to attack.