What is Port scanner?
{{no sources|date=April 2018}} A '''port scanner''' is a software tool that checks which ports are open on a [[Host (network)|network host]]. This is often used by [[network]] [[administrator]]s to verify [[security]] policies of their [[Computer network|networks]] and by attackers to find network services running on a host to take advantage of vulnerabilities. [[Category:Computer networking]] [[Category:Software]] [[Category:Computer security]] {{tech-stub}}