![]() A port scanner like nmap pays attention to more details and knows a total of six port states. The aim is to find out whether a port is open, which application is running behind it and whether there are security gaps and vulnerabilities.Ī simple port scanner will generally divide all ports into two or three states (open, closed, filtered). Port scanning is a typical application for nmap. ![]() Nmap is a comprehensive network analysis tool for system and network administrators.
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