Port scanner
A software program designed to go through a large listing of interesting ports or all available network ports and probe each port to see if it is available or open and accepting packets. Using a port scanner a user can check for any potential security vulnerabilities and prevent users from accessing a computer or other network device through any open ports.
- An example of a port scanner is the Linux and Unix nmap command.
- How can I protect myself while online?
Also see: Network definitions, Port, Security definitions