OpenVAS stands for Open Vulnerability Assessment System and is a network security scanner with associated tools like a graphical user front-end. The core component is a server with a set of network vulnerability tests (NVTs) to detect security problems in remote systems and applications. OpenVAS products are Free Software under GNU GPL and a fork of Nessus.
This video, created by
Dookie2000ca ( dookie [_at_] dkearns [_dot_] ca ) demonstrates the setup and usage of OpenVas, the open-source version of Nessus, on Back|track4. We then use the scan report in Metasploit's db_autopwn.