network based vulnerability scanning

Nessus – Premier UNIX vulnerability assessment tool

The Nessus vulnerability scanner is the world-leader in active scanners, featuring high-speed discovery, configuration auditing, asset profiling, sensitive data discovery and vulnerability analysis of your security posture. Nessus scanners can be distributed throughout an entire enterprise, inside DMZs and across physically separate networks. Nessus supports the following types of security audits: credentialed and un-credentialed port [...]