Fing for Android and iOS – Mobile app for network scanning. Discover which devices are connected to any Wi-Fi network, map devices, detect intruders, assess network security risks, troubleshoot network problems and achieve best network performance.
Metasploitable 2 – An intentionally vulnerable Linux virtual machine, which can be used to conduct security training, test security tools, and practice common penetration testing techniques.
Microsoft Baseline Security Analyzer (MBSA) – A software tool released by Microsoft to determine security state by assessing missing security updates and less-secure security settings within Microsoft Windows, Windows components such as Internet Explorer, IIS web server, and products like Microsoft SQL Server, and Microsoft Office macro settings.
Nessus Home – Allows you to scan your personal home network (up to 16 IP addresses per scanner) with the high-speed, in-depth assessments.
Nessus Professional – A vulnerability assessment solution that helps you reduce your organization’s attack surface and ensure compliance.
OpenVAS (Open Vulnerability Assessment System, originally known as GNessUs) – A software framework of several services and tools offering vulnerability scanning and vulnerability management.
Superscan – Powerful TCP port scanner, pinger, resolver.