Port scanning is a technique used to identify open network ports and the services running on them. By sending packets to different port numbers and analyzing responses, a port scanner determines which services are accepting connections (open), which are filtered by firewalls, and which are closed. Common tools include Nmap and Masscan.
Every open port is a potential entry point. Unnecessary open ports, outdated services, or misconfigured network services are among the most common vulnerabilities found in external penetration tests.
Redsight performs comprehensive port scanning during the Recon phase, identifying open ports, running services, and their versions across your entire external attack surface.
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